CN115736814B - Naked eye retina diopter fitting device, lens, method and storage medium - Google Patents
Naked eye retina diopter fitting device, lens, method and storage medium Download PDFInfo
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Abstract
The application relates to the field of retina detection, and discloses a naked eye retina diopter fitting device, a lens, a method and a storage medium, wherein the device comprises the following components: the diopter detection module is used for detecting diopter around the naked eye retina of a human eye to obtain naked eye retina diopter data; and the diopter fitting module is used for carrying out rotationally symmetrical surface fitting on the naked eye retina diopter data to obtain a fitted retina diopter distribution surface. Therefore, the retinal diopter distribution surface obtained after fitting can be used as basic compensation to carry out personalized peripheral diopter correction, and personalized lenses are designed to achieve the purposes of improving eyesight and improving vision quality.
Description
Technical Field
The application relates to the field of retina detection, in particular to a naked eye retina diopter fitting device, a lens, a method and a storage medium.
Background
The optical defocus of the human eye means that the imaging focal point is not on the retina, and if the optical focal point is imaged in front of the retina, it is myopic defocus, and if the imaging focal point is imaged behind the retina, it is hyperopic defocus. Theoretically, the vision is most clear when the light entering the eyeball is focused and imaged on the retina, otherwise, the vision is more blurred if the imaging is positioned in front of the retina (i.e. myopia defocus) or behind the retina (i.e. hyperopia defocus); and the refractive or defocus state of the naked human eye is determined by both the refractive medium of the eyeball and the retinal morphology. Refractive media mainly include cornea, aqueous humor, lens, vitreous body, and retinal morphology is mostly determined by eyeball morphology. It is known that the refractive power distribution of the cornea is different in different regions, and the refractive powers of the crystalline lens and the vitreous body in the same sagittal plane are different, but the ocular fundus forms of myopes, especially of highly myopic patients, are mostly not regular spheres or spheres, so that when the human naked eye state is adopted, the retinal imaging focus presents different defocus states in different regions of the retina.
Therefore, in an ideal state, when the diopter of the human eye is not correct enough, the diopter distribution lens which is matched with individuation is required to correct the central diopter, and the peripheral diopter is required to be corrected, and the diopter distribution surface which is corrected is not a uniform spherical surface. However, it has long been difficult to obtain the refractive state of the whole eyeball due to the development of peripheral diopter detection technology. The conventional lens assembly aims at correcting the central diopter, is based on the fact that eyeballs are in a positive spherical form or the full retina diopters are approximately equal, and the peripheral diopters are of a uniform and homogeneous design, so that body tailoring is not achieved. In practice, the eyeball retinal diopter distribution of each individual is different, so that the lens manufactured by the existing diopter detection technology cannot sufficiently correct peripheral ametropia, and the symptoms such as poor vision quality, blurred peripheral vision and the like are represented; meanwhile, the defocus lens for controlling myopia development also causes uneven myopia control effect due to larger adaptability difference of defocus amount.
Disclosure of Invention
In view of the above, the present application aims to provide a naked eye retinal diopter fitting device, a lens, a method and a storage medium, which can effectively obtain a reasonable retinal diopter distribution surface, and use the obtained retinal diopter distribution surface as basic compensation to perform personalized peripheral refraction correction, and design a personalized lens. The specific scheme is as follows:
an open eye retinal diopter fitting device comprising:
the diopter detection module is used for detecting diopter around the naked eye retina of a human eye to obtain naked eye retina diopter data;
and the diopter fitting module is used for carrying out rotationally symmetric surface fitting on the naked eye retina diopter data to obtain a fitted retina diopter distribution surface.
Preferably, in the apparatus for fitting an open-eye retinal diopter provided in the embodiment of the present application, the apparatus further includes:
and the defocus amount design module is used for carrying out corresponding defocus amount increase and decrease design on different areas of the retina diopter distribution surface.
Preferably, in the above naked eye retina diopter fitting device provided by the embodiment of the present application, the diopter fitting module includes:
the function selecting unit is used for selecting a fitting function according to the naked eye retina diopter data;
and the function rotation unit is used for rotating the curve corresponding to the fitting function by 360 degrees along the visual axis so as to obtain a rotationally symmetrical fitting surface, and taking the fitting surface as the retinal diopter distribution surface.
Preferably, in the apparatus for fitting an open-eye retinal diopter provided in the embodiment of the present application, the apparatus further includes:
the data conversion module is used for converting the naked eye retina diopter data into naked eye retina periphery defocus data;
the index acquisition module is used for acquiring the spherical index of the naked eye retina periphery defocus data;
the diopter fitting module is specifically configured to perform rotationally symmetric surface fitting on the naked eye retina diopter data when the spherical index is not less than a set threshold value, so as to obtain a fitted retina diopter distribution surface; and the method is also used for judging that the diopter distribution surface of the retina is approximately spherical when the spherical index is smaller than the set threshold value.
Preferably, in the apparatus for fitting an open-eye retinal diopter provided by the embodiment of the present application, the data conversion module is specifically configured to subtract the central diopter data from the open-eye retinal diopter data measured at each peripheral detection point to obtain open-eye retinal peripheral defocus data of the detection point;
the index acquisition module is specifically configured to acquire a spherical index of the defocus data around the naked eye retina by adopting the following formula:
SI＝(D 1 2 +D 2 2 +D 3 2 ……+D n 2 )/n
wherein SI represents the spherical index and D represents the defocus value of each detection point; n represents the total number of detection points; the smaller the SI, the closer the diopter distribution surface is to the sphere, and the larger the SI, the more the diopter distribution surface deviates from the sphere.
Preferably, in the device for fitting an open-eye retinal diopter provided by the embodiment of the present application, the open-eye retinal diopter data, the open-eye retinal peripheral defocus data, and the fitted data on the retinal diopter distribution surface are matrix-like lattice data.
The embodiment of the application also provides a lens, which is obtained by taking the retinal diopter distribution surface obtained by the naked eye retinal diopter fitting device provided by the embodiment of the application as the diopter base data of human eyes to carry out diopter correction.
Preferably, in the above lens provided by the embodiment of the present application, the lens is a positive lens capable of forming a near-sighted retinal peripheral defocus; or alternatively, the first and second heat exchangers may be,
the lens is a negative lens capable of forming a distance vision retina peripheral defocus; or alternatively, the first and second heat exchangers may be,
the lens is obtained by performing corresponding defocus amount increase and decrease design on different areas of the retinal diopter distribution surface.
The embodiment of the application also provides a fitting method of the naked eye retina diopter fitting device provided by the embodiment of the application, which comprises the following steps:
detecting the diopter of the periphery of the naked eye retina of a human eye to obtain naked eye retina diopter data;
and performing rotationally symmetric surface fitting on the naked eye retina diopter data to obtain a fitted retina diopter distribution surface.
The embodiment of the application also provides a computer readable storage medium for storing a computer program, wherein the computer program realizes the fitting method of the naked eye retina diopter fitting device provided by the embodiment of the application when being executed by a processor.
According to the technical scheme, the naked eye retina diopter fitting device provided by the application comprises the following components: the diopter detection module is used for detecting diopter around the naked eye retina of a human eye to obtain naked eye retina diopter data; and the diopter fitting module is used for carrying out rotationally symmetrical surface fitting on the naked eye retina diopter data to obtain a fitted retina diopter distribution surface.
According to the naked eye retina diopter fitting device provided by the application, the rotation symmetry plane fitting can be carried out on the naked eye retina peripheral diopter data through the interaction of the two modules, so that a reasonable retina diopter distribution surface is effectively obtained, the obtained retina diopter distribution surface can be used as basic compensation for carrying out personalized peripheral diopter correction, and personalized lenses are designed to correct peripheral vision except central vision, so that the purposes of improving vision and vision quality are achieved.
In addition, the application also provides a corresponding lens, a corresponding method and a corresponding computer-readable storage medium for the naked eye retina diopter fitting device, so that the device has more practicability, and the lens, the method and the computer-readable storage medium have corresponding advantages.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the related art, the drawings that are required to be used in the embodiments or the related technical descriptions will be briefly described, and it is apparent that the drawings in the following description are only embodiments of the present application, and other drawings may be obtained according to the provided drawings without inventive effort for those skilled in the art.
Fig. 1 is a schematic diagram of a naked eye retina diopter fitting device according to an embodiment of the present application;
FIG. 2 is a second schematic diagram of a device for fitting an open-hole retinal diopter according to an embodiment of the present application;
FIG. 3 is a schematic diagram of a retinal defocus phenomenon according to an embodiment of the present application;
FIG. 4 is a schematic view of a front and back section of a distance retinal defocus fit provided by an embodiment of the present application;
FIG. 5 is a schematic view of contour lines of a retinal naked eye diopter fitting front plane effect provided by an embodiment of the present application;
FIG. 6 is a schematic view of contour lines of a plane effect after retinal naked eye diopter fitting according to an embodiment of the present application;
FIG. 7 is a flowchart of an embodiment of a method for obtaining a lens diopter correction;
fig. 8 is a flowchart of a fitting method of the naked eye retina diopter fitting device according to the embodiment of the present application;
fig. 9 is a specific flowchart of a fitting method of the naked eye retina diopter fitting device provided by the embodiment of the application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The application provides a naked eye retina diopter fitting device, as shown in fig. 1, comprising:
the diopter detection module 11 is configured to perform naked eye retina peripheral diopter detection on a human eye, and obtain naked eye retina diopter data.
In an embodiment of the present application, the naked eye retinal diopter data obtained by the diopter detection module 11 may be matrix-like dot matrix data, that is, n-point equivalent sphere power (SE 1 ，SE 2 ，SE 3 ……SE n ) Each retinal diopter detection point is expressed as (x, y, SE), x represents the horizontal field angle, y represents the vertical field angle, SE is the equivalent sphere power there; the detection range is an adjustable range which can cover a range of 60 degrees of the field angle.
In practical applications, the diopter detection module 11 may be a peripheral diopter measuring instrument, an eccentric photographing optometry instrument, or the like, namely: the peripheral diopter detection of the retina of the human eye can be carried out by using equipment such as a peripheral diopter measuring instrument, an eccentric photographing optometry instrument and the like. The peripheral diopter measuring instrument can complete diopter detection with high accuracy in a 60-degree range of a horizontal radial line with resolution of up to 1 degree in 3 seconds, and can complete retinal diopter detection in a large range in the vertical direction by combining up-and-down rotation of eyeballs of a tested person.
The diopter fitting module 12 is configured to perform rotationally symmetric surface fitting on the naked eye retinal diopter data, and obtain a fitted retinal diopter distribution surface.
In an embodiment of the present application, the data on the retinal diopter distribution surface obtained after the diopter fitting module 12 is fitted may still be matrix-like dot matrix data (SE 1 '，SE 2 '，SE 3 '……SE n '), the peripheral diopter after each point fitting is denoted (x, y, SE').
In the naked eye retina diopter fitting device provided by the embodiment of the application, the rotation symmetry plane fitting can be carried out on the naked eye retina peripheral diopter data through the interaction of the two modules, so that a reasonable retina diopter distribution surface is effectively obtained, the obtained retina diopter distribution surface can be used as basic compensation to carry out personalized peripheral diopter correction, and personalized lenses are designed to correct peripheral vision except central vision, thereby achieving the purposes of improving vision and improving vision quality.
Further, in implementation, in the above-mentioned naked eye retinal diopter fitting device provided in the embodiment of the present application, as shown in fig. 2, the device may further include: and the defocus amount design module 13 is used for carrying out corresponding defocus amount increase and decrease design on different areas of the retina diopter distribution surface.
It should be noted that, through extensive detection and research, the present application finds that the distribution of the relative defocus (Relative Peripheral Refraction, RPR) at the periphery of the retina of the human eye has regional differences and inter-individual differences, and it is this difference that causes a series of symptoms such as blurred vision at the periphery, distortion, and uneven effect of the existing peripheral defocus lens in controlling myopia after wearing the existing homogenizing lens. The RPR herein refers to the difference between the refractive power of the peripheral area imaged on the retina and the central refractive power, and when the peripheral refractive power is greater than the central refractive power, the value is positive, if corrected according to the central refractive power, the imaging point falls behind the retina, and the peripheral shape is out of focus relative to the distance vision; when the peripheral diopter is less than the central diopter, it is negative, and if corrected according to the central diopter, the imaging point falls in front of retina, and the peripheral forms relative myopia defocus. Meanwhile, through large sample analysis, the application obtains the common distribution characteristics of the peripheral defocus owned by the crowd with different central diopters in advance. Based on the method, the application can carry out corresponding defocus amount increase and decrease design on different areas of the retinal diopter distribution surface according to the retinal defocus distribution conditions of different individuals, so that personalized defocus lenses can be manufactured to correct the side central vision and peripheral vision except for central vision, the defocus increment design is more accurate, the visual quality of people is improved, and the functions and effects of special defocus lenses are further enhanced.
Further, in implementation, in the above-mentioned naked eye retinal diopter fitting device provided in the embodiment of the present application, as shown in fig. 2, the device may further include:
the data conversion module 14 is used for converting the naked eye retina diopter data into naked eye retina periphery defocus data;
in an embodiment of the present application, the data conversion module 14 converts the naked eye retinal diopter data calculation into naked eye retinal peripheral defocus data, which may specifically include: the data conversion module 14 subtracts the central diopter data from the open-eye retinal diopter data measured at each detection point on the periphery to obtain open-eye retinal peripheral defocus data of the detection point. That is, the defocus value for each point at the periphery is obtained by subtracting the central diopter from the diopter measured at that point.
Specifically, the defocus data of the naked eye retina converted by the data conversion module 14 may be matrix-like lattice data (D 1 ，D 2 ，D 3 ……D n ) Each pointThe relative defocus values are denoted (x, y, D).
An index obtaining module 15, configured to obtain a spherical index of defocus data around the retina of the naked eye;
in an embodiment of the present application, the Index obtaining module 15 may be configured to calculate the retinal peripheral defocus data, and specifically obtain a spherical Index (SI, index of sphere) of the retinal peripheral defocus data of the naked eye by using the following formula:
SI＝(D 1 2 +D 2 2 +D 3 2 ……+D n 2 )/n
wherein SI represents a sphere index, and D represents a defocus value of each detection point; n represents the total number of detection points; the smaller the SI, the closer the diopter distribution surface is to the sphere, and the larger the SI, the more the diopter distribution surface deviates from the sphere.
Further, the application can select whether to perform the rotationally symmetric surface fitting according to the spherical index by the diopter fitting module 12, that is, the rotationally symmetric surface fitting is performed on the diopter data around the naked eye retina when the spherical index of the defocus data around the naked eye retina reaches a certain condition. In a specific implementation, the diopter fitting module 12 may be specifically configured to perform rotationally symmetric surface fitting on naked eye retinal diopter data when the spherical index is not less than a set threshold value, to obtain a fitted retinal diopter distribution surface; and is further configured to determine that the retinal diopter distribution surface is approximately spherical when the spherical index is less than the set threshold.
In practical applications, the magnitude of the set threshold may be determined by an operator, or there is no fixed standard according to the actual situation. Preferably, the set threshold may be set to 0.2. When the spherical index SI is more than or equal to 0.2, the periphery is obviously positive or negative defocus can be judged, and the refractive power base compensation is required to be given when the lens design is carried out. When the sphere index SI is less than 0.2, the diopter fitting module 12 may directly determine that the sphere index SI is low and that the diopter distribution surface is approximately spherical. The defocus data after fitting was D 1 '，D 2 '，D 3 '……D n ' peripheral relative out-of-focus value table after fitting each pointShown as (x, y, D').
Further, in implementation, in the above-mentioned naked eye retina diopter fitting device provided by the embodiment of the present application, the diopter fitting module 12 may specifically include:
the function selecting unit is used for selecting a fitting function according to the naked eye retina diopter data;
and the function rotation unit is used for rotating the curve corresponding to the fitting function by 360 degrees along the visual axis so as to obtain a rotationally symmetrical fitting surface, wherein the fitting surface is used as a retinal diopter distribution surface after fitting.
Specifically, rotationally symmetric surface fitting is performed on the naked eye retina peripheral diopter data, a fitting function with better fitting efficiency is selected, and a curve corresponding to the function is rotated 360 degrees along the visual axis, so that rotationally symmetric fitting surfaces can be obtained, namely: the fitted retinal diopter SE' distribution surface is obtained.
Fig. 3 shows a schematic diagram of retinal defocus, where a refers to myopic defocus and B refers to hyperopic defocus. Fig. 4 shows a schematic diagram of a front and back section of a far vision retinal defocus fitting, wherein C refers to naked eye retinal defocus, D refers to fitted retinal defocus, and it can be seen that the fitted retinal defocus map is of a regular arc structure, approaching far vision defocus, indicating a more adequate correction of peripheral ametropia and higher visual quality under conditions of reducing irregular astigmatism.
Fig. 5 and fig. 6 show schematic diagrams of contour lines of the planar effect before and after the retinal naked eye diopter fitting, respectively, and it can be seen that the graph formed by the contour lines of the planar effect after the fitting is concentric circle distribution, so that irregular astigmatism can be reduced, and visual effect is improved.
It should be noted that, in the present application, after the fitted retinal diopter SE 'distribution surface is obtained, as shown in fig. 6, the fitted retinal diopter SE' distribution can be used as the base data of the diopter of the human eye to perform only basic refractive correction, so as to obtain a holoretin refractive correction scheme, thereby achieving the purpose of improving eyesight and vision quality.
In addition, as shown in fig. 7, the fitted diopter SE' distribution can be used as basic correction, and positive mirrors are added to carry out diopter correction, so that retinal imaging points fall in front of retina to form myopia retinal peripheral defocus, and the effect of preventing and controlling myopia development is achieved; alternatively, the fitted diopter SE' distribution can be used as basic correction, and a negative lens is added for diopter correction, so that after the retina imaging point falls on the retina, the distance retina peripheral defocus is formed, and the purposes of promoting eyeball growth and the like are achieved.
Also, as shown in fig. 7, lenses with a fitted post-diopter SE' profile as the base correction and different defocus increments designed for different regions may be used, for example, for vision correction lenses including extraocular wear, contact lenses (hard, soft), intraocular implants.
Based on the same inventive concept, the embodiment of the application also provides a lens, which is obtained by taking the retinal diopter distribution surface obtained by the naked eye retinal diopter fitting device as the diopter base data of human eyes to carry out diopter correction.
In a specific implementation, in the lens provided by the embodiment of the application, the lens may be a positive lens capable of forming a near-sighted retinal peripheral defocus; alternatively, the lens may be a negative lens that creates a distance vision retinal peripheral defocus; or, the lens may be a lens obtained by performing a corresponding defocus amount increasing/decreasing design on different areas of the retinal diopter distribution surface, and the lens may be a vision correction lens, a contact lens (hard lens, soft lens), an intraocular implantation lens, or the like.
The application can carry out additional defocus design on the basis of RPR distribution characteristics to manufacture corresponding functional lenses, thereby achieving the purposes of retarding myopia development or promoting eyeball growth and the like.
Based on the same inventive concept, the embodiment of the application also provides a fitting method of the naked eye retina diopter fitting device, and as the principle of solving the problem of the method is similar to that of the naked eye retina diopter fitting device, the implementation of the method can be referred to the implementation of the naked eye retina diopter fitting device, and the repetition is omitted.
In specific implementation, the fitting method of the naked eye retina diopter fitting device provided by the embodiment of the application, as shown in fig. 8, specifically includes the following steps:
s801, performing naked eye retina peripheral diopter detection on human eyes to obtain naked eye retina diopter data;
specifically, the naked eye retinal diopter data obtained by the diopter detection module 11 may be matrix-like dot matrix data (SE 1 ，SE 2 ，SE 3 ……SE n )。
S802, performing rotationally symmetric surface fitting on naked eye retina diopter data to obtain a fitted retina diopter distribution surface.
Specifically, the fitting of the rotational symmetry plane can be performed on the naked eye retina peripheral diopter data, a fitting function with better fitting efficiency is selected, and the curve corresponding to the function is rotated 360 degrees along the visual axis, so as to obtain the rotational symmetry fitting plane, namely: the fitted retinal diopter SE' distribution surface is obtained. The fitted data on the retinal diopter distribution surface can still be matrix-like lattice data (SE 1 '，SE 2 '，SE 3 '……SE n ')。
In the fitting method of the naked eye retina diopter fitting device provided by the embodiment of the application, the naked eye retina peripheral diopter data is subjected to rotationally symmetrical surface fitting, so that a reasonable retina diopter distribution surface can be effectively obtained, the obtained retina diopter distribution surface can be used as basic compensation for personalized peripheral diopter correction, and a personalized defocus lens is designed for correcting peripheral vision except central vision, thereby achieving the purposes of improving vision and vision quality and further enhancing the functions and effects of the special defocus lens.
Further, in a specific implementation, in the fitting method of the naked eye retinal diopter fitting device provided by the embodiment of the present application, after performing step S801 to perform naked eye retinal peripheral diopter detection on human eyes to obtain naked eye retinal diopter data, performing step S802 to perform rotationally symmetric surface fitting on the naked eye retinal diopter data to obtain a fitted retinal diopter distribution surface, as shown in fig. 9, the fitting method may further include:
s901, converting naked eye retina diopter data into naked eye retina periphery defocus data;
specifically, the naked eye retina diopter data measured by each detection point at the periphery is subtracted by the center diopter data to obtain naked eye retina periphery defocus data of the detection point. The defocus data around the naked eye retina may be matrix-like dot matrix data (D 1 ，D 2 ，D 3 ……D n )。
S902, acquiring spherical index of defocus data around the naked eye retina;
specifically, the following formula may be used to obtain the spherical index SI of the defocus data of the periphery of the naked eye retina:
SI＝(D 1 2 +D 2 2 +D 3 2 ……+D n 2 )/n
wherein SI represents a sphere index, and D represents a defocus value of each detection point; n represents the total number of detection points.
Based on this, step S802 may specifically be: when the spherical index is not smaller than a set threshold, performing rotationally symmetric surface fitting on the naked eye retina diopter data to obtain a fitted retina diopter distribution surface; when the sphere index is smaller than the set threshold, the retinal diopter distribution surface is judged to be approximately spherical.
Specifically, when the sphere index SI is greater than or equal to a set threshold (e.g., 0.2), it can be determined that the periphery is significantly positive or negative defocus, and a power base compensation is required for lens design. When the sphere index SI is smaller than a set threshold (e.g., 0.2), it can be directly determined that the sphere index SI is lower and the diopter distribution surface is approximately spherical.
Further, in a specific implementation, in the fitting method of the naked eye retinal diopter fitting device provided by the embodiment of the present application, after executing step S802, as shown in fig. 9, the fitting method may further include:
s903, carrying out corresponding defocus amount increasing and decreasing design on different areas of the retina diopter distribution surface.
Through executing the steps, the personalized defocusing lens can be manufactured according to the design of increasing and decreasing the defocusing amount, and the functions and effects of the special defocusing lens are further enhanced.
For more specific working procedures of the above steps, reference may be made to the corresponding contents disclosed in the foregoing embodiments, and no further description is given here.
Further, the application also discloses a computer readable storage medium for storing a computer program; the computer program when executed by the processor implements the fitting method of the open eye retinal diopter fitting device disclosed previously.
For more specific procedures of the above method, reference may be made to the corresponding contents disclosed in the foregoing embodiments, and no further description is given here.
In this specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, so that the same or similar parts between the embodiments are referred to each other. The lenses, methods and storage media disclosed in the embodiments correspond to the devices disclosed in the embodiments, so that the description is simpler, and the relevant points refer to the device part.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative elements and steps are described above generally in terms of functionality in order to clearly illustrate the interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. The software modules may be disposed in Random Access Memory (RAM), memory, read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
In summary, the device for fitting the diopter of the naked eye retina provided by the embodiment of the application comprises: the diopter detection module is used for detecting diopter around the naked eye retina of a human eye to obtain naked eye retina diopter data; and the diopter fitting module is used for performing rotationally symmetrical surface fitting on naked eye retina diopter data when the spherical index is not smaller than a set threshold value, so as to obtain a fitted retina diopter distribution surface. According to the naked eye retina diopter fitting device, the rotation symmetry plane fitting can be carried out on naked eye retina peripheral diopter data through the interaction of the two modules, so that a reasonable retina diopter distribution surface is effectively obtained, the obtained retina diopter distribution surface can be used as basic compensation for personalized peripheral diopter correction, and personalized lenses are designed to correct peripheral vision except central vision, so that the purposes of improving vision and improving vision quality are achieved. In addition, the application also provides a corresponding lens, a corresponding method and a corresponding computer-readable storage medium for the naked eye retina diopter fitting device, so that the device has more practicability, and the lens, the method and the computer-readable storage medium have corresponding advantages.
Finally, it is further noted that relational terms such as first and second, and the like are 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. Moreover, 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. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The device, the lens, the method and the storage medium for fitting the naked eye retina diopter provided by the application are described in detail, and specific examples are applied to the principle and the implementation mode of the application, and the description of the above examples is only used for helping to understand the method and the core idea of the application; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present application, the present description should not be construed as limiting the present application in view of the above.
Claims (6)
1. An open eye retinal diopter fitting device comprising:
the diopter detection module is used for detecting diopter around the naked eye retina of a human eye to obtain naked eye retina diopter data;
the data conversion module is used for converting the naked eye retina diopter data into naked eye retina periphery defocus data;
the index acquisition module is used for acquiring the spherical index of the naked eye retina periphery defocus data;
the diopter fitting module is used for performing rotationally symmetric surface fitting on the naked eye retina diopter data when the spherical index is not smaller than a set threshold value, so as to obtain a fitted retina diopter distribution surface; when the sphere index is smaller than the set threshold, judging that the retinal diopter distribution surface is approximately spherical; the diopter fitting module includes: the function selecting unit is used for selecting a fitting function according to the naked eye retina diopter data; and the function rotation unit is used for rotating the curve corresponding to the fitting function by 360 degrees along the visual axis so as to obtain a rotationally symmetrical fitting surface, and taking the fitting surface as the retinal diopter distribution surface.
2. The bare eye retinal diopter fitting device according to claim 1, further comprising:
and the defocus amount design module is used for carrying out corresponding defocus amount increase and decrease design on different areas of the retina diopter distribution surface.
3. The naked eye retina diopter fitting device according to claim 2, wherein the data conversion module is specifically configured to subtract the center diopter data from the naked eye retina diopter data measured at each detection point on the periphery to obtain naked eye retina periphery defocus data of the detection point;
the index acquisition module is specifically configured to acquire a spherical index of the defocus data around the naked eye retina by adopting the following formula:
SI=(D 1 2 +D 2 2 +D 3 2 ……+D n 2 )/n
wherein SI represents the sphere index, D represents the defocus value of each detection point, and n represents the total number of detection points; the smaller the SI, the closer the diopter distribution surface is to the sphere, and the larger the SI, the more the diopter distribution surface deviates from the sphere.
4. The apparatus of claim 3, wherein the data of the diopter of the naked eye retina, the data of the defocus of the periphery of the naked eye retina, and the data on the distribution surface of the diopter of the retina after fitting are matrix-like lattice data.
5. A fitting method of the naked eye retinal diopter fitting device according to any one of claims 1 to 4, comprising:
detecting the diopter of the periphery of the naked eye retina of a human eye to obtain naked eye retina diopter data;
converting the naked eye retina diopter data into naked eye retina periphery defocus data;
acquiring a spherical index of the naked eye retina periphery defocus data;
when the sphere index is not smaller than a set threshold, performing rotationally symmetric surface fitting on the naked eye retina diopter data to obtain a fitted retina diopter distribution surface, including: selecting a fitting function according to the naked eye retina diopter data; rotating the curve corresponding to the fitting function by 360 degrees along the visual axis to obtain a rotationally symmetrical fitting surface, and taking the fitting surface as the retinal diopter distribution surface;
and when the sphere index is smaller than the set threshold, judging that the retinal diopter distribution surface is approximately spherical.
6. A computer readable storage medium for storing a computer program, wherein the computer program when executed by a processor implements a fitting method of an open eye retinal diopter fitting device according to claim 5.
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| JP2005208296A (en) * | 2004-01-22 | 2005-08-04 | Seed Co Ltd | Bifocal contact lens |
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| JP2005208296A (en) * | 2004-01-22 | 2005-08-04 | Seed Co Ltd | Bifocal contact lens |
| CN101523270A (en) * | 2006-07-31 | 2009-09-02 | 眼科研究所 | Corneal and epithelial remodelling |
| CN106291976A (en) * | 2015-07-24 | 2017-01-04 | 爱博诺德（北京）医疗科技有限公司 | The preparation method of the aspheric surface vision correction mirror that a kind of periphery out of focus is controlled |
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