CN111281328B

CN111281328B - Amblyopia optometry method and device and electronic equipment

Info

Publication number: CN111281328B
Application number: CN202010122670.6A
Authority: CN
Inventors: 张仕郎
Original assignee: Nanjing Yunshilang Biotechnology Co ltd
Current assignee: Chishui Shuangyuan Sports Culture Communication Co.,Ltd.
Priority date: 2020-02-27
Filing date: 2020-02-27
Publication date: 2022-08-12
Anticipated expiration: 2040-02-27
Also published as: CN111281328A

Abstract

The embodiment of the application discloses a method and a device for amblyopia optometry and electronic equipment. The invention relates to the technical field of optometry, and aims to make the result of amblyopia optometry more accurate. The method comprises the following steps: determining the initial focal power of the spherical lens; determining an astigmatism axis according to the initial focal power of the spherical lens and a preset bicolor axis astigmatism table; determining astigmatic focal power according to the initial focal power, the astigmatic axis and a preset horizontal and vertical astigmatism table; and determining the best focal power of the spherical lens according to the astigmatism axis and the astigmatism focal power. The application is suitable for amblyopia optometry.

Description

Amblyopia optometry method and device and electronic equipment

Technical Field

The present application relates to the field of optometry technologies, and in particular, to a method and an apparatus for amblyopia optometry, an electronic device, and a computer-readable storage medium.

Background

Amblyopia patients (optometrists) have the characteristics of low corrected vision, strong eye accommodation and the like, which cause that it is difficult to perform optometry on the optometrists to obtain accurate optometry prescriptions, on the basis of which, amblyopia optometry generally needs to be performed under the condition that mydriasis medicines such as atropine and paralyzed ciliary muscles are used to enable the amblyopia eyes of the amblyopia patients to lose the accommodation function, however, the examinee cannot see near nor sunlight during mydriasis, and the duration of mydriasis is relatively long, theoretically, the rapid mydriasis recovery takes 7 days, the slow mydriasis recovery takes 21 days, the actual recovery time often exceeds the theoretical recovery time, so that if the mydriasis medicine is used for carrying out optometry on the amblyopia patient, the normal work and study of the amblyopia patient can be influenced, for example, when the amblyopic patient is a child, mydriasis can cause the child to write without seeing the words on the book.

If no mydriasis medicine is used, when the amblyopia patient is tested, the cross cylindrical lens clamping approach optometry method can be adopted, on the comprehensive optometry instrument, the spherical lens, the cylindrical lens and the cylindrical lens axis are simultaneously implanted, and the optimal spherical lens focal power, the cylindrical lens focal power and the cylindrical lens axis are approached through the cross cylindrical lens, the positive rotation and the reverse rotation.

When the cross cylindrical mirror clip approach optometry is used for carrying out optometry on an amblyopia patient, although a mydriasis is not adopted, when the method is used for carrying out optometry on the amblyopia patient, three values of sphere focal power, cylinder focal power (astigmatic focal power) and cylinder axis position are influenced mutually, so that the optometry result is not accurate enough.

Disclosure of Invention

In view of this, embodiments of the present application provide a method and an apparatus for amblyopia optometry, an electronic device, and a computer-readable storage medium, which can make the result of amblyopia optometry more accurate.

In a first aspect, an embodiment of the present application provides a method for amblyopia optometry, including: determining the initial focal power of the spherical lens; determining an astigmatism axis according to the initial focal power of the spherical lens and a preset bicolor axis astigmatism table; determining astigmatic focal power according to the initial focal power, the astigmatic axis and a preset horizontal and vertical astigmatism table; and determining the best focal power of the spherical lens according to the astigmatism axis and the astigmatism focal power.

According to a specific implementation manner of the embodiment of the present application, the determining the initial power of the sphere lens includes:

prompting the tested person to wear ball lenses with different focal powers in sequence to obtain the optimal vision under different focal powers; wherein, the focal power of the spherical lenses worn by the optometrist in sequence changes in a step shape; displaying an astigmatism table for each optimal vision and determining the clearest line position in the astigmatism table; and determining the initial focal power of the spherical lens based on the clearest line position in the astigmatism table corresponding to each optimal vision.

According to a specific implementation manner of the embodiment of the application, the method for prompting that a person to be tested wears spherical lenses with different focal powers in sequence to obtain the optimal vision under different focal powers comprises the following steps: prompting the optometrist to wear a spherical lens with first focal power; displaying the visual chart corresponding to the first preset visual force value; judging whether the person to be tested can clearly see the visual chart corresponding to the first preset visual force value; if the person to be tested can clearly see the visual chart corresponding to the first preset visual force value, displaying the visual chart corresponding to a second preset visual force value; judging whether the person to be tested can clearly see the visual chart corresponding to the second preset visual force value; determining a first predetermined vision value as an optimal vision value corresponding to a sphere of the first power if the eye chart corresponding to the second predetermined vision value is not apparent to the optometrie.

According to a specific implementation manner of the embodiment of the present application, the determining the initial focal power of the sphere lens based on the clearest line position in the astigmatism table corresponding to each optimal vision includes: judging whether the jump of a preset degree appears in two adjacent clearest lines in the astigmatism table corresponding to each optimal vision; and if two adjacent clearest lines in the astigmatism table corresponding to each optimal vision jump by a preset degree, determining the initial focal power of the spherical lens according to the focal power of the spherical lens corresponding to the first clearest line in the two adjacent clearest lines.

According to a specific implementation manner of the embodiment of the application, the method further includes: if two adjacent clearest lines in the astigmatism table corresponding to each optimal vision do not jump by a preset degree, determining whether an expected vision value exists in the multiple optimal visions; if an expected vision value exists in the plurality of optimal visions, determining the sphere focal power corresponding to the expected vision value as the sphere initial focal power; and if the plurality of optimal visions do not have the expected vision value, determining the sphere focal power corresponding to the optimal vision with the maximum value in the plurality of optimal visions as the sphere initial focal power.

According to a specific implementation manner of the embodiment of the present application, if two adjacent clearest lines in the astigmatism table corresponding to each optimal vision jump by a predetermined degree, determining an initial focal power of a sphere lens according to a focal power of a sphere lens corresponding to a first clearest line in the two adjacent clearest lines, the method includes: and if two adjacent clearest lines in the astigmatism table corresponding to each optimal vision jump by a preset power, subtracting the preset focal value from the focal power of the spherical lens corresponding to the first clearest line in the two adjacent clearest lines to obtain the focal power, and determining the initial focal power of the spherical lens.

According to a specific implementation manner of the embodiment of the present application, the determining an astigmatism axis according to the initial power of the sphere lens and a preset dichromatic axis astigmatism table includes: determining the clearest line position corresponding to the initial focal power of the spherical lens according to the initial focal power of the spherical lens, and determining an angle corresponding to the clearest line position corresponding to the initial focal power of the spherical lens as an initial astigmatism axis; acquiring a bicolor axial astigmatism table; the bi-color axial astigmatism table comprises a green line, a first red line and a second red line, the first red line and the second red line form a predetermined included angle, the green line is positioned between the two red lines, the first red line is positioned in the counterclockwise direction of the green line, and the second red line is positioned in the clockwise direction of the green line; rotating the bicolor axial astigmatism table by a first angle to enable a green line in the bicolor axial astigmatism table to be consistent with the phase of the initial astigmatism axis, and displaying the rotated bicolor axial astigmatism table; determining whether the first red line and the second red line are equally clear to the subject; if the person looks at the first red line and the second red line as same as clear, determining the first angle as the axis of astigmatism; if the person to be tested sees only one of the first red line and the second red line is clear, rotating the two-color axis astigmatism table by a second angle until the first red line and the second red line can be seen by the person to be tested simultaneously; and determining the astigmatism axis according to the first angle and the second angle.

According to a specific implementation manner of the embodiment of the present application, the determining an astigmatism axis according to the initial power of the sphere lens and a preset dichromatic axis astigmatism table includes: determining the clearest line position corresponding to the initial focal power of the spherical lens according to the initial focal power of the spherical lens, and determining an angle corresponding to the clearest line position corresponding to the initial focal power of the spherical lens as an initial astigmatism axis; acquiring a bicolor axial astigmatism table; the bi-color axial astigmatism table comprises a green line, a first red line and a second red line, the first red line and the second red line form a predetermined included angle, the green line is positioned between the two red lines, the first red line is positioned in the counterclockwise direction of the green line, and the second red line is positioned in the clockwise direction of the green line; rotating the bicolor axial astigmatism table by a first angle to enable a green line in the bicolor axial astigmatism table to be consistent with the phase of the initial astigmatism axis, and displaying the rotated bicolor axial astigmatism table; determining whether the first red line and the second red line are equally clear to the subject; determining the first angle as a first axis of astigmatism if the first and second red lines are simultaneously visible by the optometrist; if the person to be tested sees only one of the first red line and the second red line is clear, rotating the two-color axis astigmatism table by a second angle until the first red line and the second red line can be seen by the person to be tested simultaneously; determining a first astigmatism axis according to the first angle and the second angle; rotating the bi-chromatic axis astigmatism table by a third angle in the anticlockwise direction by taking the first astigmatism axis as a reference so that the optometrist can only see a first red line in the bi-chromatic axis astigmatism table; rotating the bicolor axis astigmatism table by a fourth angle in the clockwise direction by taking the first astigmatism axis as a reference so that the optometrist can only see a second red line in the bicolor axis astigmatism table; determining an axis of astigmatism based on the first axis of astigmatism, the third angle and the fourth angle.

According to a specific implementation manner of the embodiment of the present application, the determining an optimal astigmatic power according to the initial power of the sphere lens, the axis of astigmatism and a preset horizontal-vertical astigmatism table includes: prompting the tested person to install a ball lens on the test lens frame; the degree of the spherical lens is the initial focal power of the spherical lens; acquiring a preset horizontal and vertical scatterometer; the transverse and vertical light table comprises a first group of parallel lines and a second group of parallel lines, wherein the first group of parallel lines are transverse parallel lines, and the second group of parallel lines are vertical parallel lines; rotating the horizontal and vertical astigmatism tables to make the orientation of a first group of parallel lines in the horizontal and vertical astigmatism tables consistent with the phase of the astigmatism axis; displaying the rotated horizontal and vertical astigmatism tables; judging whether the person to be tested can see the second group of parallel lines in the rotated horizontal and vertical astigmatism tables or not when wearing the spherical lens with the initial focal power of the spherical lens; wherein, the ball lens is arranged on the trial frame; if the person to be tested can see the second group of parallel lines in the rotated horizontal and vertical astigmatism table clearly, the optimal astigmatism focal power is determined to be 0; if the person to be tested can not see the second group of parallel lines in the rotated horizontal and vertical astigmatism table clearly, prompting the person to be tested to add a cylindrical lens with a first preset focal power on the trial frame with the spherical lens, and judging whether the person to be tested can see the second group of parallel lines in the rotated horizontal and vertical astigmatism table clearly; if the optometrist can not see the second group of parallel lines in the rotated horizontal and vertical astigmatism table, prompting the optometrist to replace a cylindrical lens with a second preset focal power on a trial frame with the spherical lens until the optometrist can see the second group of parallel lines in the rotated horizontal and vertical astigmatism table; if the examinee can see the second group of parallel lines in the rotated horizontal and vertical astigmatism table, the focal power of the cylindrical lens used when the examinee can see the second group of parallel lines in the rotated horizontal and vertical astigmatism table is determined as the optimal astigmatism focal power, or the focal power of the cylindrical lens used when the examinee can see the second group of parallel lines in the rotated horizontal and vertical astigmatism table is determined as the optimal astigmatism focal power by subtracting a predetermined focus value.

According to a specific implementation of the embodiment of the present application, the determining a best power of a sphere lens according to the axis of astigmatism and the astigmatic power includes: determining the optimal vision corresponding to each group of combined lenses according to different groups of combined lenses worn by the optometrist; the combined lenses comprise spherical lenses and cylindrical lenses which are arranged on a trial lens frame, focal powers of the spherical lenses are different in different groups of combined lenses, the focal powers of the cylindrical lenses are all astigmatic focal powers, and the axial positions of the cylindrical lenses are consistent with the astigmatic axial positions marked on the trial lens frame; determining the best vision with the maximum value in the best vision corresponding to each group of combined lenses; and determining the best focal power of the spherical lens according to the focal power of the spherical lens in the combined lens corresponding to the best vision with the maximum value.

According to a specific implementation manner of the embodiment of the present application, determining the best focal power of the sphere lens according to the focal power of the sphere lens in the combined lens corresponding to the best vision with the maximum value includes: determining the focal power of a spherical lens in the combined lens corresponding to the optimal vision with the maximum value as the optimal focal power of the spherical lens; or, after the focal power of the spherical lens in the combined lens corresponding to the best vision with the maximum value is increased and decreased by a preset focal value, two new focal values are obtained; respectively determining the optimal vision corresponding to the two groups of combined lenses based on the two groups of combined lenses with the new focal values; the focal power of the spherical lens in one group of combined lenses is one of the two obtained new focal power values, and the focal power of the spherical lens in the other group of combined lenses is the other one of the two obtained new focal power values; determining the best vision with the first maximum value from the best vision corresponding to the two groups of combined lenses and the best vision with the maximum value; and determining the best focal power of the spherical lens according to the focal power of the spherical lens in the combined lens corresponding to the best vision with the first maximum value.

In a second aspect, an embodiment of the present application provides an apparatus for amblyopia optometry, including: the first determining module is used for determining the initial focal power of the spherical lens; the second determination module is used for determining an astigmatism axis according to the initial focal power of the spherical lens and a preset dichromatic axis astigmatism table; the third determining module is used for determining astigmatic focal power according to the initial focal power, the astigmatic axis and a preset horizontal and vertical astigmatism table; and the fourth determination module is used for determining the best focal power of the spherical lens according to the astigmatism axis and the astigmatism focal power.

According to a specific implementation manner of the embodiment of the present application, the first determining module includes: the first optimal vision obtaining submodule is used for prompting the tested person to sequentially wear spherical lenses with different focal powers to obtain the optimal vision under different focal powers; wherein, the focal power of the spherical lenses worn by the optometrist in sequence changes in a step shape; a clearest line position determination submodule for displaying an astigmatism table for each best vision and determining a clearest line position in the astigmatism table; and the sphere initial focal power determining submodule is used for determining the sphere initial focal power based on the clearest line position in the astigmatism table corresponding to each optimal vision.

According to a specific implementation manner of the embodiment of the present application, the best vision obtaining sub-module includes: the first prompting unit is used for prompting the optometrist to wear a spherical lens with a first focal power; the first display unit is used for displaying the visual chart corresponding to the first preset visual force value; the first judging unit is used for judging whether the optometrist can clearly see the visual chart corresponding to the first preset visual force value; the second display unit is used for displaying the visual chart corresponding to a second preset visual force value if the optometry target can clearly see the visual chart corresponding to the first preset visual force value; the second judging unit is used for judging whether the optometrist can clearly see the visual chart corresponding to the second preset visual force value; an optimal vision value determination unit for determining a first predetermined vision value as an optimal vision value corresponding to a sphere lens of the first power if the optometrist does not see clearly the eye chart corresponding to the second predetermined vision value.

According to a specific implementation manner of the embodiment of the present application, the sphere initial power determining submodule includes: the third judging unit is used for judging whether jump of preset degrees occurs in two adjacent clearest lines in the astigmatism table corresponding to each optimal vision; and the sphere initial focal power determining unit is used for determining the initial focal power of the sphere corresponding to the first clearest line in the two adjacent clearest lines if the two adjacent clearest lines have jump of a preset degree in the clearest lines in the astigmatism table corresponding to each optimal vision.

According to a specific implementation manner of the embodiment of the present application, the sphere initial power determining unit is further configured to: if two adjacent clearest lines in the astigmatism table corresponding to each optimal vision do not jump by a preset degree, determining whether an expected vision value exists in the multiple optimal visions; if an expected vision value exists in the plurality of optimal visions, determining the sphere focal power corresponding to the expected vision value as the sphere initial focal power; and if the plurality of optimal visions do not have the expected vision value, determining the sphere focal power corresponding to the optimal vision with the maximum value in the plurality of optimal visions as the sphere initial focal power.

According to a specific implementation manner of the embodiment of the application, the sphere initial focal power determining unit is further configured to determine the initial focal power of the sphere if two adjacent clearest lines have a jump of a predetermined degree in the clearest lines in the astigmatism table corresponding to each optimal vision, and the focal power obtained by subtracting a predetermined focal value from the focal power of the sphere corresponding to the first clearest line in the two adjacent clearest lines.

According to a specific implementation manner of the embodiment of the present application, the second determining module includes: an initial astigmatism axis determination submodule, configured to determine, according to the initial power of the sphere lens, the clearest line position corresponding to the initial power of the sphere lens, and determine an angle corresponding to the clearest line position corresponding to the initial power of the sphere lens as an initial astigmatism axis; the acquisition sub-module is used for acquiring a bicolor axial astigmatism table; the bi-color axial astigmatism table includes a green line, a first red line and a second red line, the first red line and the second red line having a predetermined included angle, the green line being located between the two red lines, the first red line being located counterclockwise from the green line, the second red line being located clockwise from the green line; the first display sub-module is used for rotating the two-color axial astigmatism table by a first angle to enable a green line in the two-color axial astigmatism table to be consistent with the phase of the initial astigmatism axis and displaying the rotated two-color axial astigmatism table; a determine if the person being evaluated sees both the first red line and the second red line clear; an astigmatism axis position determination submodule for determining the first angle as an astigmatism axis position if the first red line and the second red line are equally clear when viewed by the optometrist; if the person to be tested sees only one of the first red line and the second red line is clear, rotating the two-color axis astigmatism table by a second angle until the first red line and the second red line can be seen by the person to be tested simultaneously; and determining the astigmatism axis according to the first angle and the second angle.

According to a specific implementation manner of the embodiment of the present application, the second determining module includes: an initial astigmatism axis determination submodule, configured to determine, according to the initial power of the sphere lens, the clearest line position corresponding to the initial power of the sphere lens, and determine an angle corresponding to the clearest line position corresponding to the initial power of the sphere lens as an initial astigmatism axis; the first acquisition sub-module is used for acquiring a bicolor axial astigmatism table; the bi-color axial astigmatism table comprises a green line, a first red line and a second red line, the first red line and the second red line form a predetermined included angle, the green line is positioned between the two red lines, the first red line is positioned in the counterclockwise direction of the green line, and the second red line is positioned in the clockwise direction of the green line; the first display submodule is used for rotating the bicolor axis astigmatism table by a first angle to enable a green line in the bicolor axis astigmatism table to be consistent with the phase of the initial astigmatism axis and displaying the rotated bicolor axis astigmatism table; a determine if the person being evaluated sees both the first red line and the second red line clear; a first astigmatism axis determination submodule for determining the first angle as a first astigmatism axis if the first and second red lines are simultaneously visible to the optometrist; if the person to be tested sees only one of the first red line and the second red line is clear, rotating the two-color axis astigmatism table by a second angle until the first red line and the second red line can be seen by the person to be tested simultaneously; determining a first astigmatism axis according to the first angle and the second angle; the first rotating sub-module is used for rotating the dual-axis astigmatism table by a third angle in the anticlockwise direction by taking the first astigmatism axis as a reference so that an optometrist can only see a first red line in the dual-axis astigmatism table clearly; a second rotation submodule, for rotating the bi-chromatic axis astigmatism table by a fourth angle in a clockwise direction by taking the first astigmatism axis as a reference, so that the optometrist can only see a second red line in the bi-chromatic axis astigmatism table; an astigmatism axis determination submodule for determining an astigmatism axis based on the first astigmatism axis, the third angle and the fourth angle.

According to a specific implementation manner of the embodiment of the present application, the third determining module includes: the first prompting submodule is used for prompting the optometrist to install a ball lens on the trial lens frame; the degree of the spherical lens is the initial focal power of the spherical lens; the second acquisition submodule is used for acquiring a preset horizontal and vertical scattering chart; the transverse and vertical light table comprises a first group of parallel lines and a second group of parallel lines, wherein the first group of parallel lines are transverse parallel lines, and the second group of parallel lines are vertical parallel lines; the third rotating submodule is used for rotating the horizontal and vertical astigmatism tables so that the orientation of a first group of parallel lines in the horizontal and vertical astigmatism tables is consistent with the phase of the astigmatism axis; the second display sub-module is used for displaying the rotated horizontal and vertical light charts; the judgment submodule is used for judging whether a person to be tested can see the second group of parallel lines in the rotated horizontal and vertical light charts when wearing the spherical lens with the initial focal power of the spherical lens; wherein, the ball lens is arranged on the trial frame; the optimal astigmatic focal power determining sub-module is used for determining the optimal astigmatic focal power to be 0 if the optometrist can see the second group of parallel lines in the horizontal and vertical astigmatism tables after rotation; the optical axis measuring device is also used for prompting the optometrist to add a cylindrical lens with a first preset focal power on the trial frame with the spherical lens if the optometrist cannot see a second group of parallel lines in the rotated horizontal and vertical light chart, and judging whether the optometrist can see the second group of parallel lines in the rotated horizontal and vertical light chart or not; if the optometrist can not see the second group of parallel lines in the rotated horizontal and vertical light charts clearly, prompting the optometrist to replace a cylindrical lens with a second preset focal power on the trial frame with the spherical lens until the optometrist can see the second group of parallel lines in the rotated horizontal and vertical light charts clearly; if the examinee can see the second group of parallel lines in the rotated horizontal and vertical astigmatism table, the focal power of the cylindrical lens used when the examinee can see the second group of parallel lines in the rotated horizontal and vertical astigmatism table is determined as the optimal astigmatism focal power, or the focal power of the cylindrical lens used when the examinee can see the second group of parallel lines in the rotated horizontal and vertical astigmatism table is determined as the optimal astigmatism focal power by subtracting a predetermined focus value.

According to a specific implementation manner of the embodiment of the present application, the fourth determining module includes: the second optimal vision determination submodule is used for determining the optimal vision corresponding to each group of combined lenses according to different groups of combined lenses worn by the optometrist; the combined lenses comprise a spherical lens and a cylindrical lens which are arranged on a trial lens frame, focal powers of the spherical lens and the cylindrical lens are different in different groups of combined lenses, the focal powers of the cylindrical lens are the astigmatic focal powers, and the axial position of the cylindrical lens is consistent with the astigmatic axial position marked on the trial lens frame; the maximum value determining submodule of the optimal vision is used for determining the optimal vision with the maximum value in the optimal vision corresponding to each group of combined lenses; and the sphere best focal power determining submodule is used for determining the sphere best focal power according to the focal power of the sphere in the combined lens corresponding to the best vision with the maximum value.

According to a specific implementation manner of the embodiment of the present application, the sphere best power determining submodule includes: the sphere best focal power determining unit is used for determining the focal power of a sphere in the combined lens corresponding to the best vision with the maximum value as the sphere best focal power; or, a new focal power value obtaining unit, configured to obtain two new focal power values after increasing and decreasing the predetermined focal power value of the sphere lens in the combined lens corresponding to the best vision having the maximum value; the optimal vision determining unit corresponding to the two groups of combined lenses is used for respectively determining the optimal vision corresponding to the two groups of combined lenses based on the two groups of combined lenses with the two new focal values; the focal power of the spherical lens in one group of combined lenses is one of the two obtained new focal power values, and the focal power of the spherical lens in the other group of combined lenses is the other one of the two obtained new focal power values; the first maximum value determining unit of the optimal vision is used for determining the optimal vision with the first maximum value in the optimal vision corresponding to the two groups of combined lenses and the optimal vision with the maximum value; and the sphere best focal power determining unit is used for determining the sphere best focal power according to the focal power of the sphere in the combined lens corresponding to the best vision with the first maximum value.

In a third aspect, an embodiment of the present application provides an electronic device, including: the device comprises a shell, a processor, a memory, a circuit board and a power circuit, wherein the circuit board is arranged in a space enclosed by the shell, and the processor and the memory are arranged on the circuit board; a power supply circuit for supplying power to each circuit or device of the electronic apparatus; the memory is used for storing executable program codes; the processor executes the program corresponding to the executable program code by reading the executable program code stored in the memory, and is used for executing the method of any one of the foregoing implementation modes.

In a fourth aspect, embodiments of the present application further provide a computer-readable storage medium storing one or more programs, which are executable by one or more processors to implement the method of any of the foregoing implementations.

The method, the device, the electronic equipment and the computer readable storage medium for weak vision optometry provided by the embodiment of the application determine the astigmatism axis position according to the determined sphere initial power and the preset dichromatic axis astigmatism table, determine the astigmatism power according to the determined initial power, the astigmatism axis position and the preset horizontal and vertical astigmatism table, finally determine the best power of the sphere according to the determined astigmatism axis position and the astigmatism power, determine the astigmatism power according to the determined sphere initial power, the astigmatism axis position and the preset horizontal and vertical astigmatism table in the process of weak vision optometry, finally re-determine the sphere power according to the determined astigmatism axis position and the astigmatism power to obtain the best power of the sphere, thus, in the process of optometry for a person to be tested, the determination of any one of the three values of the sphere focal power, the cylinder focal power and the cylinder axis is obtained on the premise that the other two data are determined, so that the mutual influence of the three data is avoided, and the optometry result is more accurate.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic flow chart of a method for amblyopia optometry according to a first embodiment of the present application;

FIG. 2 is a schematic flow chart illustrating the process of determining the initial power of the sphere lens according to an embodiment of the present application;

FIG. 3 is a simplified flow diagram corresponding to FIG. 2;

FIG. 4 is a simplified flow chart for determining the initial power of a sphere lens in one embodiment of the present application;

FIG. 5 is a schematic diagram of a process for determining an axis of astigmatism according to the initial power of the sphere lens and a preset dichromatic axis astigmatism table in an embodiment of the present application;

FIG. 6 is a schematic diagram illustrating a process of determining an optimal astigmatic power according to the initial power of the sphere lens, the axis of astigmatism, and a preset vertical and horizontal astigmatism table according to an embodiment of the present application;

FIG. 7 is a simplified flowchart corresponding to FIG. 6;

FIG. 8 is a schematic flow chart illustrating the determination of the best power of the sphere lens according to the axis of astigmatism and the power of astigmatism in an embodiment of the present application;

FIG. 9 is a simplified flowchart corresponding to FIG. 8;

FIG. 10 is a schematic diagram of a weak vision optometric apparatus according to an embodiment of the present application;

fig. 11 is a schematic structural diagram of an embodiment of an electronic device according to the present application.

Detailed Description

The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

It should be understood that the embodiments described are only a few embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Fig. 1 is a schematic flow chart of a method for amblyopia optometry according to a first embodiment of the present application, as shown in fig. 1, the method of the present embodiment is suitable for performing amblyopia optometry on hypermetropia, astigmatic amblyopia patients, and the method may include:

step 101, determining initial focal power of a spherical lens.

In this embodiment, the spherical lens, also called spherical lens, has the ability of bending light and focusing; the spherical lens is divided into a concave lens and a convex lens, wherein the concave lens is indicated by a mark for correcting myopia; the convex lens is denoted by "+"; to correct hyperopia. The present application relates to a method for presbyopia, astigmatism type amblyopia, so that the sphere lenses mentioned hereinafter are sphere lenses for correcting hyperopia.

The power, or diopter, is measured in D and measures the power of the lens and curved mirror. Spectacles often use power to represent power (diopters), which can be obtained by multiplying the power value by 100.

The initial focal power of the spherical lens is strong in the eye adjusting capacity of the optometrist when the optometrist performs the amblyopia optometry, and the spherical lens with a certain degree can be worn by the optometrist at the beginning of the optometry so as to reduce the adjusting capacity of the eyes during the optometry.

And 102, determining an astigmatism axis according to the initial focal power of the spherical lens and a preset bicolor axis astigmatism table.

In this embodiment, the axis of astigmatism is also called the direction of astigmatism. The power and axis of the cylinder are required for the patient with astigmatism, including myopic astigmatism and hyperopic astigmatism, to correct the astigmatism of the patient (amblyopic patient), the cylinder is also called astigmatism lens, the positive astigmatism lens represents hyperopic astigmatism, the negative cylinder lens represents myopic astigmatism, the cylinder has astigmatism power and astigmatism axis, and the axis of the corresponding astigmatism is astigmatism.

The biaxial astigmatism table may include two red lines at a predetermined angle and a green line between the two red lines.

And 103, determining astigmatic focal power according to the initial focal power, the astigmatic axis and a preset horizontal and vertical astigmatism table.

In this embodiment, the horizontal and vertical light charts may include two sets of lines, the directions of the two sets of lines being perpendicular to each other.

And step 104, determining the best focal power of the spherical lens according to the astigmatism axis and the astigmatism focal power.

In this embodiment, the sphere power is re-determined based on the determined axis of astigmatism and the astigmatic power.

In the embodiment, the astigmatism axis is determined according to the determined initial power of the spherical lens and a preset dichromatic axis astigmatism table, the astigmatism power is determined according to the determined initial power, the astigmatism axis and a preset horizontal and vertical astigmatism table, finally, the optimal power of the spherical lens is determined according to the determined astigmatism axis and the astigmatism power, in the process of performing the weak vision optometry, the initial power of the spherical lens is determined firstly, so that the dependence on the adjusting capability of the eyes of the optometrie is reduced, the astigmatism axis is obtained according to the initial power of the spherical lens, the astigmatism power is determined according to the determined initial power of the spherical lens, the astigmatism axis and the preset horizontal and vertical astigmatism table, finally, the spherical power is re-determined according to the determined astigmatism axis and the astigmatism power, so that any data of the spherical power, the cylindrical lens and the cylindrical lens axis are determined in the process of performing the optometry on the optometrie, all obtain under the prerequisite that other two data are confirmed, avoided the influence each other of three data, make the optometry result more accurate, the optometry process is comparatively simple, moreover, at the optometry in-process, need not to use mydriasis medicine, avoided influencing by optometrist's (amblyopia patient) normal work and study to and behind partial hyperopia user's mydriasis, form the risk of interior strabismus, simultaneously, can obtain best correction eyesight.

Fig. 2 is a schematic flow chart of determining the initial power of the sphere lens in an embodiment of the present application, fig. 3 is a schematic flow chart corresponding to fig. 2, and referring to fig. 2 and fig. 3, determining the initial power of the sphere lens (step 101) includes:

101a, prompting a person to be tested to wear spherical lenses with different focal powers in sequence to obtain the optimal vision under different focal powers; wherein, the focal power of the ball lenses worn by the optometrist in sequence changes in a step shape.

In this embodiment, the focal power of the spherical lens changes in a step-like manner, such that the focal power of the spherical lens gradually increases, and further, the gradually increasing may be that the focal power of each increase is equal, or that the focal power of each increase is not all equal. In one example, the power of each increment may be in the interval +0.25 to +2.00DS, and specifically may be +0.25, +0.50, +1.00, +2.00DS, and so on. In one specific example, the power is increased by +1.00DS each time.

The utility model discloses a visual inspection method, including the mode of accessible image, pronunciation, animation, the suggestion by optometrist wear the ball mirror of certain focal power, and the optometrist is specifically reminded through what kind of mode, and this embodiment does not specifically limit, and all modes that have the suggestion effect are all in the protection scope of this application.

In one example, when the sphere power has increased to +12DS, the position of the sharpest line in the corresponding table of best vision and astigmatism is determined as follows, whereby the basic measurement of the sphere can be completed without increasing the sphere power.

In one example, the distance between the optometrist and the eye chart may be 1.5 m.

In one example, prompting the optometrist to wear sphere lenses of different powers in sequence to obtain optimal vision at different powers comprises:

a11, prompting the optometrist to wear the sphere lens with the first focal power.

The first power may be 0DS, alternatively +0.25DS, alternatively +1.00DS, although other values are possible. In practical application, if the last refraction list exists, the data of the sphere power in the last refraction list can be used as the first power.

The tester can be prompted to install the sphere lens with the first focal power on the try-on frame, and the tester can wear the try-on frame provided with the sphere lens with the first focal power so as to achieve the purpose of wearing the sphere lens with the first focal power.

And A12, displaying the visual chart corresponding to the first preset visual force value.

The first predetermined vision value may be 0.1; if the vision was previously verified, the value of the previous vision is subtracted by 0.2 as the first predetermined vision. The eye chart is used to measure the chart of vision. The eye chart may include: international standard eye charts, logarithmic eye charts, Landolt (Landolt) peripheral eye charts, and the like; in one example, the eye chart is a standard logarithmic eye chart, where the visual target is the letter E. The visual targets in the visual chart corresponding to different visual values are different in size, the visual chart corresponding to each visual value comprises a plurality of letters E, and the opening directions of the letters E can be different.

And A13, judging whether the optometrist can clearly see the visual chart corresponding to the first preset visual force value.

Inquiring whether the optometrist can see the visual chart corresponding to the first preset visual force value clearly, wherein the optometrist responds to the inquiry, and if the optometrist can see clearly, responding to the visual chart clearly; when the user is not looking clearly, the user can make an invisible response.

And A14, if the optometrist can clearly see the visual chart corresponding to the first preset visual force value, displaying the visual chart corresponding to the second preset visual force value.

The second predetermined vision value is greater than the first predetermined vision value, and in one example, the second predetermined vision value is equal to the first predetermined vision value plus 0.1. The size of the visual target in the visual chart corresponding to the second preset visual force value is larger than that of the visual target in the visual chart corresponding to the first preset visual force value.

And A15, judging whether the optometrist can clearly see the visual chart corresponding to the second preset visual force value.

A16, if the optometrist does not see clearly the chart corresponding to the second predetermined vision value, determining a first predetermined vision value as the best vision value corresponding to the sphere lens of the first power.

In one example, when the user can see the chart corresponding to the visual power value of 0.5 clearly, but cannot see the chart corresponding to the visual power value of 0.6 displayed later, the optimal visual power value corresponding to the sphere lens of the first power is 0.5.

In yet another example, for a vision value greater than 0.2, the vision chart corresponding to the vision value is displayed, the subject determines the direction of each visual target in the vision chart, the system calculates the correct rate of the direction selected by the subject for each vision value, and if the correct rate for the second predetermined vision value is less than the correct rate for the first predetermined vision value, the first predetermined vision value can be determined as the best vision value corresponding to the sphere lens of the first power.

If the visual force value is 0.3, the person to be tested can see clearly, then the corresponding visual chart is displayed, the person to be tested selects the direction of each visual target in the visual chart, and the correct rate of selection of the person to be tested at the moment is calculated to be 90%; when the visual value is 0.4, according to the above process, the corresponding accuracy is calculated to be 80%, when the visual value is 0.5, and when the optometrist chooses to see unclearly, the accuracy of the selection direction is compared between the visual values 0.3 and 0.4, obviously, the accuracy of the selection direction when the visual value is 0.3 is greater than the accuracy of the selection direction when the visual value is 0.4, and at this time, 0.3 can be determined as the best visual value corresponding to the sphere lens with the first focal power.

The method prompts the optometrist to wear the spherical lenses with different focal powers, and the steps A11-A16 are repeated, so that the optimal vision with different focal powers can be obtained, in one example, when the optometrist wears the spherical lenses with certain focal power, the optometrist cannot see the visual chart with the visual power value of 0.1 clearly, and the basic measurement of the spherical lenses can be completed without increasing the spherical power.

101b, for each best vision, displaying an astigmatism table and determining the clearest line position in the astigmatism table.

In one example, where the best vision value is greater than 0.2, the astigmatism table is displayed, the most clear line position in the astigmatism table is interrogated by the person being evaluated, the person being evaluated selects the most clear line position, and the results are recorded.

101c, determining the initial power of the sphere lens based on the best view 4 and the clearest line position in the astigmatism table corresponding to the force of the flow chart for determining the initial power of the sphere lens in the embodiment of the application.

Each sphere power corresponds to a best vision, each best vision being obtained by interrogating the sharpest line position in the astigmatism table of the person being evaluated, to obtain a corresponding sharpest line position. The plurality of best vision results in a plurality of corresponding sharpest line positions, based on which the sphere initial power is determined.

Referring to fig. 4, in one example, the determining the initial power of the sphere lens based on the clearest line position in the astigmatism table corresponding to each best vision, as shown in fig. 4, includes:

b11, judging whether jump of preset degree appears in two adjacent clearest lines in the astigmatism table corresponding to each optimal vision.

According to the Schler's light cone principle, with the increase of the focal power of the ball lens worn by the optometrist and when the ball lens with different focal powers is used for watching the light scattering watch, theoretically, 2 mutually vertical, black and thick lines can appear successively, and the black and thick lines are the clearest lines. The predetermined degree may be 90 degrees or a value in the vicinity of 90 degrees.

And B12, if jump of preset degrees occurs in two adjacent clearest lines in the astigmatism table corresponding to each best vision, determining the initial focal power of the spherical lens corresponding to the first clearest line in the two adjacent clearest lines.

In one example, the clearest line in the astigmatism table corresponding to each optimal vision is in the 3 o ' clock direction, the 3 o ' clock direction and the 6 o ' clock direction in sequence, and the power of the sphere lens corresponding to the last 3 o ' clock direction is determined as the initial power of the sphere lens when the line in the 3 o ' clock direction and the line in the 6 o ' clock direction adjacent to the line in the 3 o ' clock direction appear 90-degree jump.

In one example, if two adjacent clearest lines in the astigmatism table corresponding to each best vision have jump of a predetermined degree, determining the sphere initial power of the sphere corresponding to the first clearest line in the two adjacent clearest lines, including:

and if two adjacent clearest lines in the astigmatism table corresponding to each optimal vision jump by a preset power, subtracting the preset focal power value from the focal power of the spherical lens corresponding to the first clearest line in the two adjacent clearest lines to obtain the focal power, and determining the initial focal power of the spherical lens.

The predetermined focus value can be from +1.00 to +4.00DS, and in one example, the predetermined focus value can be +3.00 DS; when the focal power obtained by subtracting the predetermined focal power value from the focal power of the spherical lens corresponding to the first clearest line is less than 0, the initial focal power of the spherical lens can be 0 degree; and determining the initial focal power of the spherical lens after subtracting the predetermined focal value from the focal power of the spherical lens corresponding to the first clearest line in the two adjacent clearest lines, wherein the spherical lens with the initial focal power is worn by the optometrist, so that the eyes of the optometrist can be in an under-correction state.

In one example, the determining the initial power of the sphere based on the clearest line position in the astigmatism table corresponding to each best vision is substantially the same as the previous embodiment, except that the method further comprises:

b13, if the jump of preset power does not occur in the clearest line of the astigmatism table corresponding to each optimal vision, determining whether the expected vision value exists in the optimal vision.

The desired vision value may be 0.5.

In one example, if there is a desired vision value among the plurality of best visions, the sphere power corresponding to the desired vision value is determined as the sphere initial power.

If the desired vision value is 0.5, and among the plurality of best visions, there is a vision value of 0.5, the sphere power corresponding to the vision value of 0.5 is determined as the sphere initial power.

In another example, if there is no desired vision value in the plurality of best visions, the sphere power corresponding to the best vision with the largest value in the plurality of best visions is determined as the sphere initial power.

If the desired vision value is 0.5, there is no vision value of 0.5 in the plurality of best visions, and the numerical best vision in the plurality of best visions is 0.6, the sphere power corresponding to the vision value of 0.6 is determined as the sphere initial power.

Fig. 5 is a schematic flow chart of determining the axis of astigmatism according to the initial power of the sphere lens and the preset dichromatic axis astigmatism table in an embodiment of the present application, as shown in fig. 5, and referring to fig. 4 and 5, the determining the axis of astigmatism according to the initial power of the sphere lens and the preset dichromatic axis astigmatism table includes:

102a, determining the clearest line position corresponding to the initial focal power of the spherical lens according to the initial focal power of the spherical lens, and determining the angle corresponding to the clearest line position corresponding to the initial focal power of the spherical lens as an initial astigmatism axis.

The axis of astigmatism is the direction of astigmatism. In this embodiment, the angle corresponding to the sharpest line position corresponding to the initial power of the sphere lens is determined as the initial astigmatism axis.

102b, acquiring a bicolor axial astigmatism table; the bi-color axial astigmatism table comprises a green line, a first red line and a second red line, wherein the first red line and the second red line form a preset included angle, the green line is positioned between the two red lines, the first red line is positioned in the counterclockwise direction of the green line, and the second red line is positioned in the clockwise direction of the green line.

A bi-chromatic axis astigmatism table comprising a green line and two red lines, the two red lines having a predetermined angle between them, it being understood that the green and red lines also have a predetermined angle between them, which may range from 5 to 90 degrees.

102c, rotating the two-color axis astigmatism table by a first angle to enable a green line in the two-color axis astigmatism table to be consistent with the phase of the initial astigmatism axis, and displaying the rotated two-color axis astigmatism table.

The first angle may be 0-90 degrees.

102d, determining whether the first red line and the second red line are equally clear when seen by the optometrist.

The person being evaluated may be asked whether the first red line and the second red line are equally clear when viewing the same, and the person being evaluated may choose to view the result, e.g., the first red line is equally clear as the second red line, the first red line is clear or the second red line is clear; the system receives the selection of the optometrist.

Also clear, including both clear and blurred.

102e, if the person looks at the first red line and the second red line as same as clear, determining the first angle as the axis of astigmatism.

102f, if only one of the first red line and the second red line is clear when the person to be tested looks at, rotating the two-color axis astigmatism table by a second angle until the first red line and the second red line can be seen by the person to be tested at the same time.

The second angle may be rotated in the same direction as the first angle or in the opposite direction, and in one example, the second angle may be 5 degrees, and in another example, the second angle may also be 1 degree.

In one example, when the first red line is clear and the second red line is not clear, the dual-axis astigmatism table is rotated 5 degrees counterclockwise, if the first red line is still clear and the second red line is not clear, the dual-axis astigmatism table is rotated 5 degrees counterclockwise, at this time, the first red line is not clear and the second red line is clear, the dual-axis astigmatism table is rotated 1 degree clockwise, and if the first red line is still not clear and the second red line is clear, the dual-axis astigmatism table is rotated 1 degree clockwise until the first red line and the second red line are equally clear, it can be understood that in this embodiment, the second angle includes two degrees of 5 degrees and 1 degree.

102g, determining the astigmatism axis according to the first angle and the second angle.

And adding or subtracting the first angle and the second angle according to the anticlockwise or the clockwise to obtain the astigmatism axis position.

In order to obtain a more accurate astigmatism axis, in another embodiment of the present application, a flow chart for determining the astigmatism axis according to the initial power of the sphere lens and a preset dichromatic axis astigmatism table is further provided, and the method further includes:

102aa, determining the clearest line position corresponding to the initial focal power of the spherical lens according to the initial focal power of the spherical lens, and determining the angle corresponding to the clearest line position corresponding to the initial focal power of the spherical lens as an initial astigmatism axis.

102bb, obtaining a bicolor axial astigmatism table; the bi-color axial astigmatism table comprises a green line, a first red line and a second red line, wherein the first red line and the second red line form a preset included angle, the green line is positioned between the two red lines, the first red line is positioned in the counterclockwise direction of the green line, and the second red line is positioned in the clockwise direction of the green line.

102cc, rotating the two-color axis astigmatism table by a first angle to enable a green line in the two-color axis astigmatism table to be consistent with the phase of the initial astigmatism axis, and displaying the rotated two-color axis astigmatism table.

102dd, determining whether the first red line and the second red line are equally clear to the optometrist.

102ee, and determining said first angle as the first astigmatism axis if said first and second red lines are simultaneously visible to the optometrist.

102ff, if only one of the first red line and the second red line is clear when the person to be tested looks at, rotating the two-color axis scattering chart by a second angle until the first red line and the second red line can be seen by the person to be tested simultaneously.

102gg, determining a first astigmatism axis based on said first and second angles.

The methods of steps 102aa-102gg described above correspond one-to-one to the methods of steps 102a-102 g. And will not be described in detail herein.

102hh, rotating the dual axis astigmatism table counterclockwise by a third angle with respect to the first axis of astigmatism so that the subject can only see the first red line in the dual axis astigmatism table.

And rotating the double-color axis astigmatism table anticlockwise, so that when the person to be tested can only see the first red line in the double-color axis astigmatism table, the rotating angle of the double-color axis astigmatism table is a third angle, and the second red line is unclear at the moment.

102jj, and rotating the dual-axis astigmatism table clockwise by a fourth angle by taking the first astigmatism axis as a reference so that the optometrist can only see the second red line in the dual-axis astigmatism table.

And rotating the bicolor axial astigmatism table clockwise to ensure that when the person to be tested can only see a second red line in the bicolor axial astigmatism table clearly, the rotating angle of the bicolor axial astigmatism table is a fourth angle, and at the moment, the first red line is not clear.

102kk, determining an axis of astigmatism based on the first axis of astigmatism, the third angle and the fourth angle.

And adding the sum of the first astigmatism axis and the third angle and the difference of the first astigmatism axis and the fourth angle, and dividing by 2 to obtain the astigmatism axis.

In this embodiment, after the first astigmatism axis is determined, the dual-axis astigmatism table is rotated by a third angle in the counterclockwise direction with the first astigmatism axis as a reference so that the examinee can see only the first red line in the dual-axis astigmatism table, and then the dual-axis astigmatism table is rotated by a fourth angle in the clockwise direction with the first astigmatism axis as a reference so that the examinee can see only the second red line in the dual-axis astigmatism table.

Fig. 6 is a schematic flowchart of determining the optimal astigmatic power according to the sphere initial power, the astigmatic axis and a preset horizontal-vertical astigmatism table in an embodiment of the present application, as shown in fig. 6, and fig. 7 is a schematic flowchart corresponding to fig. 6, and referring to fig. 6 and 7, the determining the optimal astigmatic power in the embodiment includes:

103a, prompting the tested person to install a ball lens on the test lens frame; the degree of the spherical lens is the initial focal power of the spherical lens.

The examinee can be prompted to install the sphere lens on the test lens frame in the modes of images, voice, animation and the like, and the sphere lens at the moment is the initial focal power of the sphere lens determined in the embodiment.

103b, acquiring a preset horizontal and vertical scattering chart; the horizontal and vertical light table comprises a first group of parallel lines and a second group of parallel lines, wherein the first group of parallel lines are horizontal parallel lines, and the second group of parallel lines are vertical parallel lines.

Step 103c, rotating the horizontal and vertical astigmatism tables to enable the orientation of the first group of parallel lines in the horizontal and vertical astigmatism tables to be consistent with the astigmatism axis.

And step 103d, displaying the rotated horizontal and vertical light charts.

Step 103e, judging whether the optometrist can see the second group of parallel lines in the rotated horizontal and vertical light charts or not when wearing the spherical lens with the initial focal power of the spherical lens; wherein, the ball lens is installed on the trial frame.

When the optometrist sees the rotated horizontal and vertical astigmatism table and wears the spherical lens with the initial power of the spherical lens, the optometrist makes a corresponding reply according to the inquiry of whether the second group of parallel lines in the rotated horizontal and vertical astigmatism table can be seen or not.

And 103f, if the person to be tested can see the second group of parallel lines in the rotated horizontal and vertical astigmatism tables clearly, determining that the optimal astigmatism focal power is 0.

When the person to be tested can see the second group of parallel lines in the rotated horizontal and vertical astigmatism tables, the person to be tested does not wear the cylindrical lens, and the focal power of the cylindrical lens is 0, namely the corresponding optimal astigmatism focal power is 0.

And 103g, if the optometrist cannot see the second group of parallel lines in the rotated horizontal and vertical light chart, prompting the optometrist to add a cylindrical lens with first preset focal power on the trial frame with the spherical lens, and judging whether the optometrist can see the second group of parallel lines in the rotated horizontal and vertical light chart.

The first predetermined power can be +0.25DC, +0.5DC, +0.75DC, and so on, and in one example, the first predetermined power is +0.50 DC.

And 103h, if the optometrist can not see the second group of parallel lines in the rotated horizontal and vertical light chart, prompting the optometrist to replace a cylindrical lens with second preset focal power on the trial frame with the spherical lens until the optometrist can see the second group of parallel lines in the rotated horizontal and vertical light chart.

If the person being examined can not see the first group of parallel lines and the second group of parallel lines in the rotated transverse and vertical astigmatism table clearly, or the person being examined can see the first group of parallel lines and cannot see the second group of parallel lines clearly, the astigmatism is not corrected enough, so that the focal power of the cylindrical lens can be increased every time, the steps are repeated, when the focal power of the cylindrical lens is increased to +5.00DC, the measurement error is indicated, and at the moment, the professional can intervene, such as an optometrist to perform manual treatment.

The second predetermined power can be +0.25DC, +0.5DC, +0.75DC, and so on, and in one example, the second predetermined power is +0.50 DC.

After the cylindrical lens with the second predetermined focal power is replaced, the cylindrical lens with a certain focal power is replaced, and after a plurality of times of such processes, until the optometrist can see the second group of parallel lines in the horizontal and vertical light scattering tables after rotation, in one example, the focal power of the first predetermined focal power, the second predetermined focal power and the focal power of the spherical lens which is replaced in sequence afterwards can be increased by +0.50 DC.

And 103j, if the optometrist can clearly see the second group of parallel lines in the rotated horizontal and vertical astigmatism table, determining the focal power of the cylindrical lens used when the optometrist can clearly see the second group of parallel lines in the rotated horizontal and vertical astigmatism table as the optimal astigmatism focal power.

When the person to be tested can see the second group of parallel lines in the rotated horizontal and vertical astigmatism table and can see the first group of parallel lines in the rotated horizontal and vertical astigmatism table at the same time, the power of correction is shown to be achieved, and the power of the cylindrical lens used at the moment is determined as the optimal astigmatism power;

in one example, if the examinee can see the second group of parallel lines in the rotated vertical and horizontal astigmatism table, the power obtained by subtracting a predetermined focal value from the power of the cylindrical lens used when the examinee can see the second group of parallel lines in the rotated vertical and horizontal astigmatism table is determined as the optimum astigmatism power.

The optical power obtained by subtracting a predetermined focal length value from the focal power of the cylindrical lens used when the optical examinee can see the second set of parallel lines in the rotated vertical and horizontal astigmatism table is determined as the optimum astigmatism focal power. In one example, the predetermined focus value may be +0.25 DC.

Fig. 8 is a schematic flowchart of determining the best power of the sphere lens according to the axis of astigmatism and the power of astigmatism in an embodiment of the present application, as shown in fig. 8, fig. 9 is a schematic flowchart corresponding to fig. 8, and referring to fig. 8 and 9, the embodiment of determining the best power of the sphere lens includes:

104a, determining the optimal vision corresponding to each group of combined lenses according to different groups of combined lenses worn by the optometrist; the combined lens comprises a spherical lens and a cylindrical lens which are arranged on a trial lens frame, focal powers of the spherical lens and the cylindrical lens are different in different groups of combined lenses, the focal powers of the cylindrical lens are the astigmatic focal powers, and the axial position of the cylindrical lens is consistent with the astigmatic axial position marked on the trial lens frame.

After the determined cylinder axis and power are obtained, the power of the sphere can be re-determined, the optometrist is first prompted to wear the combination, the sphere power in the combination can be measured from the sphere initial power as a starting point, and then the sphere power can be increased by a predetermined gradient value, in one example +1.0 DC.

And step 104b, determining the best vision with the maximum value in the best vision corresponding to each group of combined lenses.

After the suggestion is worn every group combined mirror by the optometrist, can show the visual chart that predetermined visual value pair used, initial visual chart can be the visual chart that visual value 0.1 corresponds, under the prerequisite that has the optometry data of the previous time, can use the visual value in the optometry data of the previous time to subtract 0.2, as the initial visual value of this application, shows the visual chart that this visual value pair corresponds.

When the corrected vision is higher and higher by increasing the spherical power before the optimal vision (the optimal corrected vision) is reached, the corrected vision is reduced by increasing the spherical power after the optimal corrected vision is exceeded.

The optimal vision value corresponding to each group of the combined lenses can be obtained by displaying the visual chart corresponding to the corresponding vision value after the combined lenses are worn by the optometrist, inquiring whether the optometrist can see clearly, and if the visual chart corresponding to a certain vision value is not clear when the optometrist chooses to see clearly, taking the previous vision value as the optimal vision corresponding to the group of the combined lenses; or after the visual chart corresponding to a certain visual force value is displayed and seen clearly, the optometrist is prompted to select the direction of each visual target in the visual chart, and if the correct recognition rate of the visual chart corresponding to each visual force value is reduced, the last visual force value is taken as the best visual force value.

And 104c, determining the best focal power of the spherical lens according to the focal power of the spherical lens in the combined lens corresponding to the best vision with the maximum value. ,

in this embodiment, the best vision corresponding to each group of combined lenses is determined according to different groups of combined lenses worn by an examinee, where the combined lenses include a spherical lens and a cylindrical lens mounted on a trial frame, the focal powers of the spherical lens are different among the different groups of combined lenses, the focal powers of the cylindrical lens are the astigmatic focal powers, and the axial position of the cylindrical lens is consistent with the astigmatic axis phase marked on the trial frame, the best vision having the maximum value among the best vision corresponding to each group of combined lenses is determined, the best focal power of the spherical lens is determined according to the focal power of the spherical lens in the combined lens corresponding to the best vision having the maximum value, and after determining the astigmatic axis and the astigmatic focal power, the focal power of the spherical lens is re-determined, that is, the focal power at this time is the best focal power of the spherical lens.

In one example, the determining a best power of a sphere lens according to the power of the sphere lens in the combined lens corresponding to the best vision with the maximum value (step 104c) includes:

and c11, determining the focal power of the spherical lens in the combined lens corresponding to the best vision with the maximum value as the best focal power of the spherical lens.

And taking the maximum value of the optimal vision corresponding to each combined lens obtained by measurement as the optimal focal power of the spherical lens.

In another example, the determining the best power of the sphere lens according to the power of the sphere lens in the combined lens corresponding to the best vision with the maximum value (step 104c) includes:

and c12, adding and reducing the focal power of the spherical lens in the combined lens corresponding to the best vision with the maximum value to the preset focal power value to obtain two new focal power values.

The predetermined power value may be 0.50, it being understood that the predetermined power value is less than the difference in sphere power between the different sets of combination lenses, and in one example, the predetermined power value is less than the predetermined gradient value; in one example, where the best vision is 0.5, corresponding to a sphere power of +6.00DS, then an increase and decrease of 0.50 using +6.00DS can be used, resulting in two new power values of +6.50DS and +5.5 DS.

Step c13, respectively determining the optimal vision corresponding to the two groups of combined lenses based on the two groups of combined lenses with the new focal values; and the focal power of the spherical lens in one group of combined lenses is one of the two obtained new focal power values, and the focal power of the spherical lens in the other group of combined lenses is the other one of the two obtained new focal power values.

In this embodiment, in the two groups of combined lenses, the focal power of the cylindrical lens is the same as the axis of astigmatism, the focal power of the spherical lens is the two focal power values obtained in step c12, and the method for determining the optimal vision value is the same as that in step 104 b.

And c14, determining the best vision with the first maximum value from the best vision corresponding to the two groups of combined lenses and the best vision with the maximum value.

In one example, sphere powers of +5.50DS, +6.00DS, +6.50DS correspond to optimal vision values of 0.4, 0.5, and 0.6, respectively, with a maximum of 0.6 being found at the three optimal vision values. In another example, sphere powers of +5.50DS, +6.00DS, +6.50DS correspond to optimal vision values of 0.5, and 0.4, respectively, with a maximum of 0.5 being found at the three optimal vision values.

And c15, determining the best focal power of the spherical lens according to the focal power of the spherical lens in the combined lens corresponding to the best vision with the first maximum value.

In one example, when the maximum value of the optimal visual force value corresponds to one sphere power, the sphere power corresponding to the maximum value of the optimal visual force value is taken as the sphere best power. In another example, the maximum value of the best vision value corresponds to two sphere powers, with the larger sphere power being the sphere best power.

In this embodiment, after increasing and decreasing the focal power of the spherical lens in the combined lens corresponding to the best vision with the maximum value by a predetermined focal value, two new focal values are obtained, and the best vision corresponding to the two groups of combined lenses is respectively determined based on the two groups of combined lenses with the two new focal values; the focal power of the spherical lens in one group of combined lenses is one of the two new focal power values, the focal power of the spherical lens in the other group of combined lenses is the other of the two new focal power values, the best vision with the first maximum value is determined in the best vision corresponding to the two groups of combined lenses and the best vision with the maximum value, and the best focal power of the spherical lens is determined according to the focal power of the spherical lens in the combined lens corresponding to the best vision with the first maximum value, so that the accurate best focal power of the spherical lens can be further obtained, and the corresponding best corrected vision can be obtained at the same time.

The following describes the technical solution of the method in detail by using a specific example.

Step 201, the left eye of the tested person looks amblyopia, the tested person is prompted to wear the spherical lenses with different focal powers in sequence, the focal power of the spherical lenses starts from 0DS, plus 1.00DS is added every time, for the spherical lenses with different focal powers, the best vision under different focal powers can be obtained, and specific results are shown in table 1.

Step 202, for each best vision, an astigmatism table is displayed and the position of the sharpest line in the astigmatism table is determined, see table 1.

Focal power of spherical lens	Optimum vision		Clearest line position
				L: left naked eye&Hide right->	0.2	Coarse adjustment of astigmatic chart	Black and thick at 3 o' clock
L：+1.00DS&Hide right->	0.3	Coarse adjustment of astigmatic chart	Black and thick at 3 o' clock
				L：+2.00DS&Hide right->	0.3	Coarse adjustment of astigmatic chart	Black and thick at 3 o' clock
L：+3.00DS&For shielding right->	0.3	Coarse adjustment of astigmatic chart	Black and thick at 3 o' clock
				L：+4.00DS&Hide right->	0.25	Coarse adjustment of astigmatic chart	2.5 black and coarse
L：+5.00DS&Hide right->	0.3	Coarse adjustment of astigmatic chart	2.5 black and coarse
				L：+6.00DS&Hide right->	0.3	Coarse adjustment of astigmatic chart	2.5 black and coarse
L：+7.00DS&Hide right->	0.3	Coarse adjustment of astigmatic chart	3.5 black and coarse
				L：+8.00DS&Hide right->	0.3	Coarse adjustment of astigmatic chart	5 black and coarse
L：+9.00DS&Hide right->	0.15	Coarse adjustment of astigmatic chart	Can not be seen

And step 203, in the clearest lines in the astigmatism table corresponding to each optimal vision, two adjacent clearest lines have jump of 90 degrees, and the focal power of the sphere corresponding to the first clearest line in the two adjacent clearest lines is used for determining the initial focal power of the sphere.

According to the Schler's optical cone principle, along with the increase of the focal power of the ball lens worn by the optometrist, when the ball lens with different focal powers is used for watching the light scattering watch, theoretically, 2 mutually vertical, black and thick lines can appear successively, in the actual optometry process, the angle between the 2 black and thick lines can be near 90 degrees, and the black and thick lines are the clearest lines.

As can be seen from table 1, when the sphere power corresponding to each optimal visual power value is 0DS to +7.00DS, the clearest line viewed by the optometrist appears in the 2.5 o ' clock, 3 o ' clock, 3.5 o ' clock directions and is centered around 3 o ' clock, and when the sphere power is +8.00DS, the clearest line appears in the 5 o ' clock direction, that is, when the sphere power is +7.00DS and +8.00DS, the clearest line appears a jump close to 90 degrees, the power before the jump is +7.00DS, and in order to ensure under-correction of the sphere, the +3.00DS can be subtracted from the +7.00DS, and the +4.00DS is used as the sphere initial power.

And step 204, setting the direction of the clearest line corresponding to the initial focal power of the sphere +4.00DS to be 2.5 o' clock, and setting the corresponding angle to be 2.5 x 30 degrees, namely, setting 75 degrees as the axis of the initial astigmatism.

Step 205, rotating the two-tone axis astigmatism table by 75 degrees to make the green line in the two-tone axis astigmatism table consistent with the phase of the initial astigmatism axis, and displaying the rotated two-tone axis astigmatism table,

step 206, the person to be tested sees the first red line and the second red line in the rotated double-color axis astigmatism table, and only the second red line is clear, the double-color axis astigmatism table is rotated clockwise by 5 degrees, the person to be tested sees the first red line and the second red line in the rotated double-color axis astigmatism table, only the first red line is clear, the person to be tested rotates anticlockwise by 1 degree, at the moment, the person to be tested still only sees the first red line, and then rotates anticlockwise by 1 degree, at the moment, the person to be tested sees the first red line and the second red line which are also clear, and thus, the astigmatism axis position can be 72 degrees.

And step 207, prompting the tested person to install a spherical lens with focal power of +4.00DS on the test lens frame.

And 208, rotating the horizontal and vertical astigmatism tables to enable the orientation of a first group of parallel lines in the horizontal and vertical astigmatism tables to be consistent with the astigmatism axis phase of 72 degrees.

And step 209, if the optometrist can not see the second group of parallel lines in the rotated horizontal and vertical astigmatism table, prompting the optometrist to add a cylindrical lens with focal power of +0.25DC to the trial frame with the spherical lens, and judging whether the optometrist can see the second group of parallel lines in the rotated horizontal and vertical astigmatism table.

And step 210, if the tested person can not see the second group of parallel lines in the rotated horizontal and vertical astigmatism table, prompting the tested person to replace a cylindrical lens with focal power of +0.50DC on a trial frame with the spherical lens until the focal power of the cylindrical lens is +1.25DC, and enabling the tested person to see the second group of parallel lines in the rotated horizontal and vertical astigmatism table to be the most optimal astigmatism focal power of +1.25 DC.

And step 211, determining the optimal vision corresponding to each group of combined lenses worn by the optometrist, wherein the combined lenses comprise spherical lenses and cylindrical lenses which are arranged on a trial lens frame, the focal powers of the spherical lenses are different in the combined lenses of different groups, the focal powers of the cylindrical lenses are all +1.25DC, and the axial positions of the cylindrical lenses are consistent with the phase of the 72-degree astigmatism axis marked on the trial lens frame.

And step 212, in different groups of combined lenses, sequentially increasing the focal power of the spherical lens by +0.50DS with +4.00DS as the initial focal power. The best vision under different groups of combined lenses was obtained, as shown in table 2.

Combined mirror	Optimum vision
		+4.00DS/+1.25DC*72	0.25
+4.50DS/+1.25DC*72	0.3
		+5.00DS/+1.25DC*72	0.4-
+5.50DS/+1.25DC*72	0.4
		+6.00DS/+1.25DC*72	0.5-
+6.50DS/+1.25DC*72	0.4-

Finally, the following steps can be selected: l: +6.00DS/+1.25DC 72 corrects vision 0.5-as prescription for optometry, and L: +6.00/+0.75 × 81- - - - > 0.3+, which improves vision in both rows.

In addition, after the cylinder power and the astigmatism axis are determined, the sphere power is increased before the optimal corrected vision is reached, the optimal vision is gradually increased, and when the optimal corrected vision is exceeded, the sphere power is increased to cause the corrected vision to be reduced.

Fig. 10 is a schematic structural diagram of an apparatus for weak vision optometry according to an embodiment of the present application, and as shown in fig. 10, the apparatus of the present embodiment may include: a first determination module 11, a second determination module 12, a third determination module 13, a fourth determination module 14, wherein,

the first determining module 11 is used for determining the initial focal power of the spherical lens;

the second determining module 12 is used for determining an astigmatism axis according to the initial focal power of the spherical lens and a preset dichromatic axis astigmatism table;

a third determining module 13, configured to determine an astigmatic focal power according to the initial focal power, the astigmatic axis, and a preset horizontal-vertical astigmatism table;

a fourth determination module 14, configured to determine an optimal power of the sphere lens according to the axis of astigmatism and the astigmatic power.

The apparatus of this embodiment may be used to implement the technical solution of the method embodiment shown in fig. 2, and the implementation principle and the technical effect are similar, which are not described herein again.

In some embodiments, the first determining module 11 includes:

the first optimal vision obtaining submodule 11a is used for prompting the optometrist to sequentially wear ball lenses with different focal powers to obtain the optimal vision under different focal powers; wherein, the focal power of the spherical lenses worn by the optometrist in sequence changes in a step shape;

a clearest line position determination submodule 11b for displaying an astigmatism table for each best vision and determining a clearest line position in the astigmatism table;

and the sphere initial focal power determining submodule 11c is used for determining the sphere initial focal power based on the clearest line position in the astigmatism table corresponding to each optimal vision.

In some embodiments, the best vision finding submodule 11a includes:

the first prompting unit is used for prompting the optometrist to wear a spherical lens with a first focal power;

the first display unit is used for displaying the visual chart corresponding to the first preset visual force value;

the first judging unit is used for judging whether the optometrist can clearly see the visual chart corresponding to the first preset visual force value;

the second display unit is used for displaying the visual chart corresponding to a second preset visual force value if the optometry target can clearly see the visual chart corresponding to the first preset visual force value;

the second judging unit is used for judging whether the optometrist can clearly see the visual chart corresponding to the second preset visual force value;

an optimal vision value determination unit for determining a first predetermined vision value as an optimal vision value corresponding to a sphere lens of the first power if the optometrist does not see clearly the eye chart corresponding to the second predetermined vision value.

In some embodiments, the sphere initial power determination submodule 11c includes:

the third judging unit is used for judging whether jump of preset degrees occurs in two adjacent clearest lines in the astigmatism table corresponding to each optimal vision;

and the sphere initial focal power determining unit is used for determining the initial focal power of the sphere corresponding to the first clearest line in the two adjacent clearest lines if the two adjacent clearest lines have jump of a preset degree in the clearest lines in the astigmatism table corresponding to each optimal vision.

In some embodiments, the sphere initial power determination unit is further configured to:

if two adjacent clearest lines in the astigmatism table corresponding to each optimal vision do not jump by a preset degree, determining whether an expected vision value exists in the multiple optimal visions;

if an expected vision value exists in the plurality of optimal visions, determining the sphere focal power corresponding to the expected vision value as the sphere initial focal power; and if the plurality of optimal visions do not have the expected vision value, determining the sphere focal power corresponding to the optimal vision with the maximum value in the plurality of optimal visions as the sphere initial focal power.

In some embodiments, the sphere initial power determining unit is further configured to determine the sphere initial power by subtracting a predetermined focus value from the power of the sphere corresponding to the first clearest line of the two adjacent clearest lines, if two adjacent clearest lines have a jump of a predetermined degree in the clearest lines in the astigmatism table corresponding to each optimal vision.

In some embodiments, the second determining module 12 includes:

an initial astigmatism axis determination submodule 12a, configured to determine, according to the initial power of the sphere lens, the clearest line position corresponding to the initial power of the sphere lens, and determine an angle corresponding to the clearest line position corresponding to the initial power of the sphere lens as an initial astigmatism axis;

the acquisition sub-module 12b is used for acquiring a bicolor axis astigmatism table; the bi-color axial astigmatism table comprises a green line, a first red line and a second red line, the first red line and the second red line form a predetermined included angle, the green line is positioned between the two red lines, the first red line is positioned in the counterclockwise direction of the green line, and the second red line is positioned in the clockwise direction of the green line;

the first display sub-module 12c is used for rotating the bicolor axis astigmatism table by a first angle to enable a green line in the bicolor axis astigmatism table to be consistent with the phase of the initial astigmatism axis and displaying the rotated bicolor axis astigmatism table;

a determination whether the person being evaluated sees both the first red line and the second red line clear simultaneously submodule 12d for determining whether the person being evaluated sees both the first red line and the second red line clear equally;

an astigmatism axis determination submodule 12e for determining the first angle as an astigmatism axis if the first red line and the second red line are equally clear to the examinee;

if the person to be tested sees only one of the first red line and the second red line is clear, rotating the two-color axis astigmatism table by a second angle until the first red line and the second red line can be seen by the person to be tested simultaneously; determining the astigmatism axis position according to the first angle and the second angle

In some embodiments, the second determining module 12 includes:

an initial astigmatism axis determination submodule 12aa for determining the clearest line position corresponding to the initial focal power of the sphere lens according to the initial focal power of the sphere lens, and determining an angle corresponding to the clearest line position corresponding to the initial focal power of the sphere lens as an initial astigmatism axis;

the first acquisition sub-module 12bb is used for acquiring a two-color axial astigmatism table; the bi-color axial astigmatism table comprises a green line, a first red line and a second red line, the first red line and the second red line form a predetermined included angle, the green line is positioned between the two red lines, the first red line is positioned in the counterclockwise direction of the green line, and the second red line is positioned in the clockwise direction of the green line;

a first display sub-module 12cc, configured to rotate the two-color axial astigmatism table by a first angle, so that a green line in the two-color axial astigmatism table is consistent with a phase of the initial astigmatism axis, and display the rotated two-color axial astigmatism table;

determining whether the optometrist simultaneously sees sub-module 12dd for determining whether the optometrist sees said first red line and said second red line equally clear;

a first astigmatism axis determination submodule 12ee for determining the first angle as a first astigmatism axis if the first and second red lines are visible simultaneously by the optometrist;

if the person to be tested sees only one of the first red line and the second red line is clear, rotating the two-color axis astigmatism table by a second angle until the first red line and the second red line can be seen by the person to be tested simultaneously; determining a first astigmatism axis according to the first angle and the second angle;

a first rotator sub-module 12ff, configured to rotate the dual-axis astigmatism table by a third angle in the counterclockwise direction with the first astigmatism axis as a reference, so that the examinee can only see a first red line in the dual-axis astigmatism table;

a second rotation sub-module 12gg for rotating the biaxial astigmatism table clockwise by a fourth angle with respect to the first astigmatism axis so that the examinee can only see a second red line in the biaxial astigmatism table;

an astigmatism axis determination submodule for determining an astigmatism axis based on the first astigmatism axis, the third angle and the fourth angle.

In some embodiments, the third determining 13 comprises:

the first prompting submodule 13a is used for prompting the optometrist to install a ball lens on the trial lens frame; the degree of the spherical lens is the initial focal power of the spherical lens;

the second obtaining submodule 13b is used for obtaining a preset horizontal and vertical scattering chart; the transverse and vertical light table comprises a first group of parallel lines and a second group of parallel lines, wherein the first group of parallel lines are transverse parallel lines, and the second group of parallel lines are vertical parallel lines;

the third rotating submodule 13c is used for rotating the horizontal and vertical astigmatism tables so that the orientation of the first group of parallel lines in the horizontal and vertical astigmatism tables is consistent with the astigmatism axis;

the second display submodule 13d is used for displaying the rotated horizontal and vertical light charts;

the judgment submodule is used for judging whether a person to be tested can see the second group of parallel lines in the rotated horizontal and vertical light charts when wearing the spherical lens with the initial focal power of the spherical lens; wherein, the ball lens is arranged on the trial frame;

the optimal astigmatic focal power determining submodule 13e is used for determining the optimal astigmatic focal power to be 0 if the person to be tested can see the second group of parallel lines in the rotated horizontal and vertical astigmatic charts;

the optical axis adjusting device is also used for prompting the optometrist to add a cylindrical lens with a first preset focal power on a trial frame with the spherical lens if the optometrist cannot see a second group of parallel lines in the rotated transverse and vertical light table, wherein the axial position of the cylindrical lens is consistent with the astigmatic axis phase marked on the trial frame, and judging whether the optometrist can see the second group of parallel lines in the rotated transverse and vertical light table;

if the optometrist can not see the second group of parallel lines in the rotated horizontal and vertical astigmatism table, prompting the optometrist to replace a cylindrical lens with a second preset focal power on a trial frame with the spherical lens until the optometrist can see the second group of parallel lines in the rotated horizontal and vertical astigmatism table;

if the examinee can see the second group of parallel lines in the rotated horizontal and vertical astigmatism table, the focal power of the cylindrical lens used when the examinee can see the second group of parallel lines in the rotated horizontal and vertical astigmatism table is determined as the optimal astigmatism focal power, or the focal power of the cylindrical lens used when the examinee can see the second group of parallel lines in the rotated horizontal and vertical astigmatism table is determined as the optimal astigmatism focal power by subtracting a predetermined focus value.

In some embodiments, the fourth determining module 14 includes:

the second optimal vision determining submodule 14a is used for determining the optimal vision corresponding to each group of combined lenses according to different groups of combined lenses worn by the optometrist; the combined lenses comprise a spherical lens and a cylindrical lens which are arranged on a trial lens frame, focal powers of the spherical lens and the cylindrical lens are different in different groups of combined lenses, the focal powers of the cylindrical lens are the astigmatic focal powers, and the axial position of the cylindrical lens is consistent with the astigmatic axial position marked on the trial lens frame;

a maximum value determining submodule 14b for determining the best vision having the maximum value among the best vision corresponding to the respective groups of the combination lenses;

and the sphere best focal power determining submodule 14c is used for determining the sphere best focal power according to the focal power of the sphere in the combined lens corresponding to the best vision with the maximum value.

In some embodiments, the sphere best power determination submodule 14c includes:

the spherical lens optimal focal power determining unit is used for determining the focal power of the spherical lens in the combined lens corresponding to the optimal vision with the maximum value as the spherical lens optimal focal power; alternatively, the first and second electrodes may be,

a new focal power value obtaining unit for obtaining two new focal power values after increasing and decreasing the predetermined focal power value of the spherical lens in the combined lens corresponding to the best vision having the maximum value;

the optimal vision determining unit corresponding to the two groups of combined lenses is used for respectively determining the optimal vision corresponding to the two groups of combined lenses based on the two groups of combined lenses with the two new focal values; the combined lenses comprise a spherical lens and a cylindrical lens which are arranged on a trial lens frame, the focal powers of the cylindrical lenses in different groups of combined lenses are the astigmatic focal powers, and the axial positions of the cylindrical lenses are consistent with the astigmatic axis phase marked on the trial lens frame; the focal power of the spherical lens in one group of combined lenses is one of the two obtained new focal power values, and the focal power of the spherical lens in the other group of combined lenses is the other one of the two obtained new focal power values;

the first maximum value determining unit of the optimal vision is used for determining the optimal vision with the first maximum value in the optimal vision corresponding to the two groups of combined lenses and the optimal vision with the maximum value;

and the sphere best focal power determining unit is used for determining the sphere best focal power according to the focal power of the sphere in the combined lens corresponding to the best vision with the first maximum value.

Fig. 11 is a schematic structural diagram of an embodiment of an electronic device of the present application, which may implement the process of the embodiment shown in fig. 1 of the present application, and as shown in fig. 11, the electronic device may include: the device comprises a shell 41, a processor 42, a memory 43, a circuit board 44 and a power circuit 45, wherein the circuit board 44 is arranged inside a space enclosed by the shell 41, and the processor 42 and the memory 43 are arranged on the circuit board 44; a power supply circuit 45 for supplying power to each circuit or device of the electronic apparatus; the memory 43 is used for storing executable program code; the processor 42 executes a program corresponding to the executable program code by reading the executable program code stored in the memory 43, for executing any of the embodiments described above.

The specific execution process of the above steps by the processor 42 and the steps further executed by the processor 42 by running the executable program code may refer to the description of the embodiment shown in fig. 1 to 3 in this application, and are not described herein again.

The electronic device exists in a variety of forms, including but not limited to:

(1) a mobile communication device: such devices are characterized by mobile communications capabilities and are primarily targeted at providing voice, data communications. Such terminals include: smart phones (e.g., iphones), multimedia phones, functional phones, and low-end phones, among others.

(2) Ultra mobile personal computer device: the equipment belongs to the category of personal computers, has calculation and processing functions and generally has mobile internet access characteristics. Such terminals include: PDA, MID, and UMPC devices, etc., such as ipads.

(3) A portable entertainment device: such devices can display and play multimedia content. This type of device comprises: audio, video players (e.g., ipods), handheld game consoles, electronic books, and smart toys and portable car navigation devices.

(4) A server: the device for providing the computing service comprises a processor, a hard disk, a memory, a system bus and the like, and the server is similar to a general computer architecture, but has higher requirements on processing capacity, stability, reliability, safety, expandability, manageability and the like because of the need of providing high-reliability service.

(5) And other electronic equipment with data interaction function.

Embodiments of the application also provide a readable storage medium storing one or more programs, the one or more programs being executable by one or more processors to implement a method provided by any of the embodiments of the application.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. The term "comprising", without further limitation, means that the element so defined is not excluded from the group consisting of additional identical elements in the process, method, article, or apparatus that comprises the element.

All the embodiments in the present specification are described in a related manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments.

In particular, as for the apparatus embodiment, since it is substantially similar to the method embodiment, the description is relatively simple, and for the relevant points, reference may be made to the partial description of the method embodiment.

For convenience of description, the above devices are described separately in terms of functional division into various units/modules. Of course, the functionality of the units/modules may be implemented in one or more software and/or hardware implementations when the present application is implemented.

It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. An apparatus for amblyopia optometry, comprising:

the first determining module is used for determining the initial focal power of the spherical lens;

the second determination module is used for determining an astigmatism axis according to the initial focal power of the spherical lens and a preset dichromatic axis astigmatism table; the second determining module includes: the initial astigmatism axis determining submodule is used for determining the clearest line position corresponding to the initial focal power of the spherical lens according to the initial focal power of the spherical lens, and determining the angle corresponding to the clearest line position corresponding to the initial focal power of the spherical lens as an initial astigmatism axis; the first acquisition submodule is used for acquiring a bicolor axis astigmatism table; the bi-color axial astigmatism table comprises a green line, a first red line and a second red line, the first red line and the second red line form a predetermined included angle, the green line is positioned between the two red lines, the first red line is positioned in the counterclockwise direction of the green line, and the second red line is positioned in the clockwise direction of the green line; the first display submodule is used for rotating the bicolor axis astigmatism table by a first angle to enable a green line in the bicolor axis astigmatism table to be consistent with the phase of the initial astigmatism axis and displaying the rotated bicolor axis astigmatism table; a determine if the person being evaluated sees both the first red line and the second red line clear; a first astigmatism axis determination submodule for determining the first angle as a first astigmatism axis if the first and second red lines are simultaneously visible to the optometrist; if the person to be tested sees only one of the first red line and the second red line is clear, rotating the two-color axis astigmatism table by a second angle until the first red line and the second red line can be seen by the person to be tested simultaneously; determining a first astigmatism axis according to the first angle and the second angle; the first rotating sub-module is used for rotating the dual-axis astigmatism table by a third angle in the anticlockwise direction by taking the first astigmatism axis as a reference so that an optometrist can only see a first red line in the dual-axis astigmatism table clearly; a second rotation submodule, for rotating the bi-chromatic axis astigmatism table by a fourth angle in a clockwise direction by taking the first astigmatism axis as a reference, so that the optometrist can only see a second red line in the bi-chromatic axis astigmatism table; an astigmatism axis determination submodule for determining an astigmatism axis based on the first astigmatism axis, the third angle and the fourth angle;

the third determining module is used for determining astigmatic focal power according to the initial focal power, the astigmatic axis and a preset horizontal and vertical astigmatism table;

and the fourth determination module is used for determining the best focal power of the spherical lens according to the astigmatism axis and the astigmatism focal power.

2. The apparatus of claim 1, wherein the first determining module comprises:

the first optimal vision obtaining submodule is used for prompting the optometrist to sequentially wear ball lenses with different focal powers so as to obtain optimal vision under different focal powers; wherein, the focal power of the spherical lenses worn by the optometrist in sequence changes in a step shape;

a clearest line position determination submodule for displaying an astigmatism table for each best vision and determining a clearest line position in the astigmatism table;

and the sphere initial focal power determining submodule is used for determining the sphere initial focal power based on the clearest line position in the astigmatism table corresponding to each optimal vision.

3. The apparatus of claim 2, wherein the first best vision finding submodule comprises:

4. The apparatus of claim 2, wherein the sphere initial power determination submodule comprises:

5. The apparatus of claim 4, wherein the sphere initial power determination unit is further configured to:

6. The apparatus according to claim 4, wherein the sphere initial power determining unit is further configured to determine the sphere initial power by subtracting a predetermined focus value from the power of the sphere corresponding to the first sharpest line of the two adjacent sharpest lines if two adjacent sharpest lines of the astigmatism table corresponding to each best vision jump by a predetermined power.

7. The apparatus of claim 1, wherein the third determining module comprises:

the first prompting submodule is used for prompting the optometrist to install a ball lens on the trial lens frame; the degree of the spherical lens is the initial focal power of the spherical lens;

the second acquisition sub-module is used for acquiring a preset horizontal and vertical light chart; the transverse and vertical light table comprises a first group of parallel lines and a second group of parallel lines, wherein the first group of parallel lines are transverse parallel lines, and the second group of parallel lines are vertical parallel lines;

the third rotating submodule is used for rotating the horizontal and vertical astigmatism tables so that the orientation of a first group of parallel lines in the horizontal and vertical astigmatism tables is consistent with the phase of the astigmatism axis;

the second display sub-module is used for displaying the rotated transverse and vertical light charts;

the optimal astigmatic focal power determining submodule is used for determining the optimal astigmatic focal power to be 0 if the optometrist can see the second group of parallel lines in the rotated horizontal and vertical astigmatism tables;

the optical axis measuring device is also used for prompting the optometrist to add a cylindrical lens with a first preset focal power on the trial frame with the spherical lens if the optometrist cannot see a second group of parallel lines in the rotated horizontal and vertical light chart, and judging whether the optometrist can see the second group of parallel lines in the rotated horizontal and vertical light chart or not;

8. The apparatus of claim 1, wherein the fourth determining module comprises:

the second optimal vision determining submodule is used for determining the optimal vision corresponding to each group of combined lenses according to different groups of combined lenses worn by the optometrist; the combined lenses comprise a spherical lens and a cylindrical lens which are arranged on a trial lens frame, focal powers of the spherical lens and the cylindrical lens are different in different groups of combined lenses, the focal powers of the cylindrical lens are the astigmatic focal powers, and the axial position of the cylindrical lens is consistent with the astigmatic axial position marked on the trial lens frame;

the maximum value determining submodule of the optimal vision is used for determining the optimal vision with the maximum value in the optimal vision corresponding to each group of combined lenses;

and the sphere best focal power determining submodule is used for determining the sphere best focal power according to the focal power of the sphere in the combined lens corresponding to the best vision with the maximum value.

9. The apparatus of claim 8, wherein the sphere best power determination submodule comprises:

the sphere best focal power determining unit is used for determining the focal power of a sphere in the combined lens corresponding to the best vision with the maximum value as the sphere best focal power; alternatively, the first and second electrodes may be,

the optimal vision determining unit corresponding to the two groups of combined lenses is used for respectively determining the optimal vision corresponding to the two groups of combined lenses based on the two groups of combined lenses with the two new focal values; the focal power of the spherical lens in one group of combined lenses is one of the two obtained new focal power values, and the focal power of the spherical lens in the other group of combined lenses is the other one of the two obtained new focal power values;