CN109349999B - Subjective optometry method - Google Patents
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- CN109349999B CN109349999B CN201811176791.8A CN201811176791A CN109349999B CN 109349999 B CN109349999 B CN 109349999B CN 201811176791 A CN201811176791 A CN 201811176791A CN 109349999 B CN109349999 B CN 109349999B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/02—Subjective types, i.e. testing apparatus requiring the active assistance of the patient
- A61B3/028—Subjective types, i.e. testing apparatus requiring the active assistance of the patient for testing visual acuity; for determination of refraction, e.g. phoropters
- A61B3/0285—Phoropters
Abstract
The invention discloses a subjective refraction method, which relates to the technical field of medical vision detection, and comprises the steps of implanting an objective refraction prescription into refraction equipment; opening a first ocular and a second ocular which respectively correspond to the two eyes of the examined person and have circular polarization functions on the optometry equipment; the examinee binocular co-views the display content on the display device with the circular polarization function of the optometry equipment through the first eyepiece and the second eyepiece, the display content of the display device seen through the first eyepiece is different from the display content seen through the second eyepiece; and determining the subjective refraction prescription of the examinee by adjusting the adjusting structure of the refraction equipment. By the arrangement, the problems that in the prior art, the subjective optometry process is complex, the state of the measured eye is poor and the obtained subjective optometry prescription is inaccurate due to the fact that one eye is covered to measure the other eye are solved.
Description
Technical Field
The invention relates to the technical field of medical vision detection, in particular to a subjective optometry method.
Background
Along with the social development, electronic products are used more and more, and the radiation of electronic product screens to eyes is more and more, and the eye health condition is reduced due to excessive use of eyes and the like.
In the prior art, the subjective refraction method usually inspects the two eyes of the inspected person in turn, one eye is inspected and then the other eye is inspected, and one eye needs to be covered to inspect the subjective refraction prescription of the other eye, the process is complicated, the watching state, the adjusting state and the muscle state of the inspected eye are not the states of the eyes which are normally used, the subjective refraction numerical value obtained in the state is not accurate, the inspected person feels uncomfortable when wearing glasses, and the eyes are easy to feel painful and dizzy, and even the eyesight is reduced.
Therefore, it is an important technical problem to be solved by those skilled in the art to solve the problems of complicated subjective refraction process, poor state of the measured eye due to the fact that one eye is shielded from measuring the other eye, and inaccurate measured data.
Disclosure of Invention
The invention aims to provide a subjective optometry method to solve the problems that in the prior art, the subjective optometry process is complex, the condition of the measured eye is poor and the measured data is inaccurate due to the fact that one eye measures the other eye is covered. The technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the invention are described in detail in the following.
The invention provides a subjective optometry method, which comprises the following steps:
implanting an objective prescription into optometry equipment; opening a first ocular and a second ocular which respectively correspond to the two eyes of the examined person and have circular polarization functions on the optometry equipment; the examinee binocular co-views display contents on a display device with a circular polarization function of the optometry apparatus through the first eyepiece and the second eyepiece, the display contents of the display device viewed through the first eyepiece being different from the display contents viewed through the second eyepiece; and determining the subjective refraction prescription of the examinee by adjusting the adjusting structure of the refraction equipment.
Preferably, the method further comprises screening visual function of the examinee through the optometry equipment before determining the subjective optometry prescription.
Preferably, the visual function screening includes amblyopia screening, inhibition inspection and stereoscopic visual function screening.
Preferably, the determining the subjective refraction prescription of the examinee includes: determining the dominant eye and the inferior eye of the examinee; and under a binocular isometropic state, sequentially carrying out optometry on the dominant eye and the inferior eye, and respectively obtaining the subjective optometry prescriptions of the dominant eye and the inferior eye.
Preferably, the determining the subjective refraction prescription of the examinee further includes: after the subjective refraction prescription of the disadvantaged eye is obtained, the two eyes of the inspected person are subjected to balance adjustment by adjusting the adjusting structure under the binocular vision state so as to adjust the subjective refraction prescription.
Preferably, it is determined whether the display content viewed by the examinee in a binocular homography state is the display content observable through the first eyepiece; if so, the eye corresponding to the first eyepiece is a dominant eye; if not, the eye corresponding to the first ocular is a disadvantaged eye.
Preferably, the optometrizing the dominant eye or the inferior eye comprises: adjusting the adjusting structure to enable the tested eyes to clearly see the corresponding display content when the vision is a first set value; the display content comprises a first visual target for measuring short sight or long sight, the first visual target is viewed by the examinee through binocular homography, and the definition of the first visual target seen by the measured eyes is adjusted through the adjusting structure; the display content comprises a second visual target for measuring astigmatism, the second visual target is viewed by the examinee through the eyes simultaneously, and the definition of the second visual target seen by the measured eyes is adjusted through the adjusting structure.
Preferably, the balancing of the eyes of the subject includes: the display content also comprises a third visual target, the examinee can simultaneously view the third visual target through the two eyes, and the definition of the third visual target seen by the two eyes is adjusted through the adjusting structure.
Preferably, the adjusting structure is a sphere lens and a crossed cylindrical lens of the optometry equipment.
Preferably, the first visual target is a red-green visual target, and the second visual target is a honeycomb visual target.
In the technical scheme provided by the invention, the subjective refraction method comprises the steps of implanting an objective refraction prescription into refraction equipment; opening a first ocular and a second ocular which respectively correspond to the two eyes of the examined person and have circular polarization functions on the optometry equipment; the examinee sees the display content on the display device with the circular polarization function through the first ocular and the second ocular, and the display content of the display device seen through the first ocular is different from that seen through the second ocular; the subjective refraction prescription of the examinee is determined by adjusting the adjusting structure of the refraction equipment. By the arrangement, when the subjective optometry is performed, both eyes of the examinee are in an open state, the subjective optometry prescription of a certain eye can be measured by watching the optometry equipment, the watching state, the adjusting state and the muscle state of the measured eye can be the best, the test is accurate, and the problems that in the prior art, the subjective optometry process is complex, the state of the measured eye is poor and the measured subjective optometry prescription is inaccurate due to the fact that the certain eye is covered to measure the other eye are solved.
In a preferred embodiment of the present invention, it is determined whether or not the display content viewed by the examinee is a display content that can be viewed through the first eyepiece; if so, the eye corresponding to the first ocular lens is the dominant eye; if not, the eye corresponding to the first ocular is a disadvantaged eye. The speed of the dominant eye entering the adjustment is higher than that of the inferior eye, the adjustment is prior due to the imaging advantage, so that the subjective refraction prescription of the dominant eye is measured firstly, the data is more accurate, and the dominant eye and the inferior eye can be judged and the subjective refraction prescription can be obtained more accurately.
Drawings
In order to more clearly illustrate the embodiments of the present invention 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 invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a flowchart of a subjective refraction method in an embodiment of the present invention.
Detailed Description
The purpose, technical solutions and advantages of the present invention will be made clearer, and the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
The objective of the present embodiment is to provide a subjective refraction method, which solves the problems of complicated subjective refraction process, poor state of the measured eye and inaccurate measured data caused by the fact that one eye measures the other eye.
Hereinafter, examples will be described. The embodiments described below do not limit the contents of the invention described in the claims. The entire contents of the configurations shown in the following embodiments are not limited to those required as solutions of the inventions described in the claims.
Referring to fig. 1, fig. 1 is a flowchart illustrating a subjective refraction method according to an embodiment of the invention. In this embodiment, the subjective refraction method includes implanting an objective refraction prescription into a refraction device; then opening a first ocular and a second ocular on the optometry equipment, wherein the first ocular and the second ocular both have circular polarization functions and respectively correspond to the two eyes of the inspected person; the examinee sees the display content on the display device with the circular polarization function through the first ocular and the second ocular, and the display content of the display device seen through the first ocular is different from that seen through the second ocular; the subjective refraction prescription of the examinee is determined by adjusting the adjusting structure of the refraction equipment.
Specifically, an objective optometry prescription is obtained through a computer optometry instrument or a shadow examination method, and the objective optometry prescription is implanted into optometry equipment, wherein the optometry equipment comprises a display device and a comprehensive optometry instrument, and the display device and the comprehensive optometry instrument have a circular polarization function. Then open first eyepiece and the second eyepiece that has circular polarization function on the optometry equipment, first eyepiece and second eyepiece correspond with the person's of being examined eyes respectively, and display device mutually supports with first eyepiece, second eyepiece, and the display content that sees through first eyepiece and second eyepiece is different. In some embodiments, the left eye corresponds to the first eyepiece and the right eye corresponds to the second eyepiece, both eyes are open when measuring the subjective refraction prescription of the left eye, the left eye sees an image or a visual target on the display device through the first eyepiece, the right eye can see a different image or visual target, or can see a blank space, so that the subjective refraction prescription of the left eye can be determined by adjusting the adjusting structure of the refraction equipment according to the seen display content. Similarly, when the subjective refraction prescription of the right eye is measured, the right eye sees the image or the optotype on the display device through the second eyepiece, the left eye can see different images or optotypes, or can see blank, and the subjective refraction prescription of the right eye can be determined by adjusting the adjusting structure of the refraction equipment through the display content.
By the arrangement, the binocular co-vision optometry equipment can measure the subjective optometry prescription of a certain eye, the watching state, the adjusting state and the muscle state of the measured eye can be the best, and the measurement is accurate, so that the problems that the measurement process is complex, the state of the measured eye is poor and the measured subjective optometry prescription is inaccurate due to the fact that the certain eye is covered to measure the other eye are solved.
In an optional embodiment, the subjective refraction method further comprises screening visual function of the examinee through the refraction equipment before determining the subjective refraction prescription. Before obtaining the subjective optometry prescriptions of the two eyes, the visual function of the two eyes of the examinee are screened, and the condition of the two eyes, such as whether the eyes are weak or not, whether the inhibition inspection or the fundus inspection is needed or not, is detected.
By the arrangement, the condition of the eyes can be comprehensively checked and known, the disease of the eyes can be detected, and effective measures can be taken in advance for treatment or prevention.
As an alternative embodiment, the visual function screening includes amblyopia screening, inhibition inspection, and stereoscopic visual function screening.
Specifically, the visual function of both eyes is screened, and the display content comprises a plane pattern and a stereo pattern, so that the checked person can observe the plane pattern and the stereo pattern. Firstly, an inspected person is given an observation plane pattern, flags are arranged in the plane pattern, and if the binocular vision inspection equipment of the inspected person cannot count the number of the flags, an objective vision inspection prescription needs to be confirmed again and amblyopia screening is carried out; if the examinee can determine the number of flags, the eyes of the examinee do not have amblyopia. Then the inspected person is given an observation stereo pattern, if the inspected person can see the stereo effect, the subjective optometry can be carried out on the two eyes; if the inspected person can not see any change, the inspection needs to be carried out; if the examinee can see the three-dimensional pattern jumping or shaking, binocular three-dimensional vision function screening is required, and fundus examination is required.
As an alternative embodiment, determining the subjective refraction prescription of the examinee includes: determining the dominant eye and the inferior eye of the examinee; and sequentially carrying out optometry on the dominant eye and the inferior eye under the binocular isokinetic state to respectively obtain subjective optometry prescriptions of the dominant eye and the inferior eye.
It should be noted that, there is no order in testing the subjective refraction prescriptions of both eyes at ordinary times, and the subjective refraction prescription of the left eye or the subjective refraction prescription of the right eye may be tested first. Generally, the binocular accommodation of a person is relatively synchronous but is divided into a fast and a slow degree, the speed of the dominant eye entering the accommodation is higher than that of the inferior eye, and the dominant eye can give brain visual signals faster, and the dominant eye becomes the preferential accommodation due to the imaging advantage, so that the dominant eye and the inferior eye can be determined firstly, then the subjective refraction prescriptions of the dominant eye and the inferior eye are measured in sequence, and the guiding effect is achieved on subjective refraction.
By the arrangement, the dominant eye and the inferior eye can be judged, and the subjective optometry prescription of the dominant eye and the inferior eye can be accurately obtained.
As an optional embodiment, determining the subjective refraction prescription of the examinee further includes: after obtaining the subjective optometry prescription of the disadvantaged eye, the examinee performs balance adjustment on the two eyes of the examinee under the condition of binocular homoscopy and keeping the stereoscopic vision and the fusion state, thereby achieving the purpose of fine adjustment of the subjective optometry prescription.
With the arrangement, after subjective refraction is respectively carried out on the dominant eye and the inferior eye under the binocular vision state, the subjective refraction prescription is finely adjusted on the basis of binocular vision, and a more accurate subjective refraction prescription can be obtained.
As an alternative embodiment, it is determined whether the display content viewed by the examinee in the binocular viewing state is the display content that can be viewed through the first eyepiece; if so, the eye corresponding to the first ocular lens is the dominant eye; if not, the eye corresponding to the first ocular is a disadvantaged eye.
Specifically, in some embodiments, the left eye corresponds to the first eyepiece, the right eye corresponds to the second eyepiece, and the display content on the display device of the binocular optometry apparatus is different from the display content seen through the first eyepiece and the second eyepiece, for example, the display content seen by the left eye through the first eyepiece is a kitten, the display content seen by the right eye through the second eyepiece is a puppy, signals seen by both eyes are transmitted to the brain, the brain obtains two images, but after comparison, the brain selects the display content seen by the dominant eye. If the examinee sees a kitten, the left eye is the dominant eye and the right eye is the inferior eye, otherwise, the left eye is the inferior eye and the right eye is the dominant eye. Similarly, the dominant eye and the non-dominant eye can be measured by other images or other methods.
As an optional embodiment, the optometrizing the dominant eye and the inferior eye comprises: the measured eyes can see the corresponding display content when the vision is the first set value clearly through the adjustment of the adjusting structure; the display content comprises a first visual target for detecting short sight or long sight, a binocular first visual target for simultaneous sight, and the definition of the first visual target seen by the detected eyes is adjusted through an adjusting structure; the display includes a second visual target for measuring astigmatism, a binocular co-vision second visual target, and a control mechanism for adjusting the sharpness of the second visual target seen by the measured eye.
Specifically, the method for obtaining the subjective refraction prescription of the measured eye comprises the following steps: firstly, adjusting an adjusting structure of the optometry equipment, and enabling the vision of a measured eye to reach a set value through a first ocular and a second ocular; then, adjusting an adjusting structure of the optometry equipment to enable the eyes of the examinee to see clear red and green optotypes and the like in the binocular homoscopic display content, wherein the first optotype is used for measuring myopia or hyperopia, such as red and green optotype graphs; and binocular viewing a second visual target for measuring light in the display content, such as a honeycomb visual target, and an adjusting structure of the adjusting optometry equipment enables the honeycomb visual target seen by the eyes measured by the examinee to be clear. The test results may be adjusted by repeating the test procedure for myopia or hyperopia and the test procedure for astigmatism as described above, either of which may affect the test results of the other.
As an optional embodiment, the balance adjustment of the two eyes of the examinee includes binocular viewing of a third visual target of the examinee, and the definition of the third visual target seen by the two eyes is adjusted through the adjustment structure, and the third visual target is used for balance fine adjustment of the two eyes in the display content. Wherein the third visual target comprises a binocular red and green visual target, a binocular vision separating visual target, a binocular adjusting visual target and a stereo visual target.
Firstly, the examinee is given to watch the binocular red and green sighting marks, the binocular red and green sighting marks are enabled to be clear through adjusting the adjusting structure of the optometry equipment, it needs to be noted that the binocular red and green sighting marks can be used for seeing the red part through the first eyepiece and seeing the green part through the second eyepiece, and of course, in some embodiments, the binocular red and green sighting marks can be used for seeing the green part through the first eyepiece and seeing the red part through the second eyepiece.
Then, giving a fixation binocular vision separating sighting target, confirming whether the person to be inspected sees a circular ring or two circular rings, if the person to be inspected sees a circular ring, adjusting the fixation binocular vision separating sighting target, and if the person to be inspected sees two circular rings, adjusting an adjusting structure to enable the fixation result of the person to be inspected to be a circular ring;
thirdly, giving a watching binocular adjustment visual target, confirming whether the binocular adjustment visual target watched by the examinee is equal to clear or equal to black, if so, entering the next detection, and if not, adjusting an adjustment structure of the optometry equipment, so that the binocular adjustment visual target watched by the examinee is equal to clear or equal to black, or gradually equal to clear or equal to black;
and finally, giving a person to be inspected to watch the stereoscopic sighting mark, giving a farther visual sensation to the person to be inspected, verifying the accuracy of the obtained subjective refraction prescription by adjusting the adjusting structure of the refraction equipment, and if the accuracy is not accurate, performing fine adjustment to obtain the most accurate subjective refraction prescription.
Specifically, the adjusting structure of the optometry equipment comprises a spherical lens, a cylindrical lens, a prism, an axial lens and a crossed cylindrical lens. The sphere lenses of the optometric instrument are adjusted when measuring near-sighted or far-sighted vision of both eyes, and the axial and cross cylindrical lenses of the optometric instrument are adjusted when measuring astigmatism values of both eyes.
In the present embodiment, the optometry apparatus includes a display device and a comprehensive optometry unit, both of which have circular polarization functions. Firstly, implanting an objective optometry prescription into optometry equipment; opening a first ocular and a second ocular which have a circular polarization function and are arranged on the optometry equipment, wherein the first ocular and the second ocular correspond to the eyes of the examinee respectively; the examinee sees through the display contents on the binocular homoscopic display device of the first eyepiece and the second eyepiece, and the display contents seen through the first eyepiece are completely or partially different from the display contents seen through the second eyepiece. And then, visual function screening including amblyopia screening, inhibition inspection and stereoscopic vision function screening is carried out on the inspected person through optometry equipment. Then determining the dominant eye and the disadvantaged eye of the inspected person, and judging whether the display content seen by the inspected person is the display content which can be observed by penetrating through the first eyepiece or not; if so, the eye corresponding to the first ocular lens is the dominant eye; if not, the eye corresponding to the first ocular is a disadvantaged eye. Sequentially carrying out optometry on the dominant eye and the inferior eye to respectively obtain subjective optometry prescriptions of the dominant eye and the inferior eye, namely adjusting the spherical lens to enable the tested eyes to see the display content when the vision is 0.8; adjusting the spherical lens to enable the red sighting marks and the green sighting marks seen by the eyes to be clear; the cellular sighting target with binocular viewing at the same time is adjusted by the crossed cylindrical lens, so that the cellular sighting target seen by the measured eyes is clear. After obtaining the subjective optometry prescription of the inferior eye, the subjective optometry prescription of the two eyes of the inspected person is finally balanced and finely adjusted, and the balance and fine adjustment comprises binocular fixation of a red-green sighting mark, a binocular fixation sighting mark, a binocular adjustment sighting mark and a stereoscopic sighting mark in sequence, so that the display content seen by the two eyes is clear.
By the arrangement, the subjective optometry prescription of a certain eye can be measured according to the display content of the binocular co-vision optometry equipment, the watching state, the adjusting state and the muscle state of the measured eye can be the best, and the measurement is accurate, so that the problems that the subjective optometry process is complex, the state of the measured eye is poor and the measured data is inaccurate due to the fact that the certain eye is covered to measure the other eye are solved.
It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments. The multiple schemes provided by the invention comprise basic schemes, are independent from each other and are not restricted with each other, but can be combined with each other under the condition of no conflict, so that multiple effects are realized together.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (9)
1. A method of subjective refraction, comprising:
implanting an objective prescription into optometry equipment;
opening a first ocular and a second ocular which respectively correspond to the two eyes of the examined person and have circular polarization functions on the optometry equipment;
the examinee binocular co-views display contents on a display device with a circular polarization function of the optometry apparatus through the first eyepiece and the second eyepiece, the display contents of the display device viewed through the first eyepiece being different from the display contents viewed through the second eyepiece;
determining a dominant eye and a dominant eye of the examinee by adjusting an adjustment structure of the optometric apparatus;
under the binocular synoptosis state, through adjusting optometry equipment's regulation structure, it is right in proper order the dominant eye with inferior eye carries out the optometry.
2. The subjective refraction method according to claim 1, wherein the examinee is screened for visual function by the refraction equipment before the refraction.
3. The subjective refraction method according to claim 2, wherein the visual function screening includes amblyopia screening, inhibition inspection and stereoscopic visual function screening.
4. The subjective refraction method according to claim 1, wherein the balance adjustment of both eyes of the subject is performed by adjusting the adjustment structure in a binocular vision state after the refraction of the disadvantaged eye.
5. The subjective refraction method according to claim 1, wherein it is judged whether or not the display contents viewed in a binocular homography state of the examinee are the display contents observable through the first eyepiece; if so, the eye corresponding to the first eyepiece is a dominant eye; if not, the eye corresponding to the first ocular is a disadvantaged eye.
6. The method of subjective refraction of claim 1, wherein the refraction of the dominant eye or the inferior eye each comprises:
adjusting the adjusting structure to enable the tested eyes to clearly see the corresponding display content when the vision is a first set value;
the display content comprises a first visual target for measuring short sight or long sight, the first visual target is viewed by the examinee through binocular homography, and the definition of the first visual target seen by the measured eyes is adjusted through the adjusting structure;
the display content comprises a second visual target for measuring astigmatism, the second visual target is viewed by the examinee through the eyes simultaneously, and the definition of the second visual target seen by the measured eyes is adjusted through the adjusting structure.
7. The subjective refraction method according to claim 4, wherein said balancing the eyes of the examinee includes:
the display content also comprises a third visual target, the examinee can simultaneously view the third visual target through the two eyes, and the definition of the third visual target seen by the two eyes is adjusted through the adjusting structure.
8. The method of subjective refraction of claim 1 wherein said adjustment structures are sphere and crossed cylinder mirrors of said refraction device.
9. The subjective refraction method of claim 6, wherein said first optotype is a red-green optotype and said second optotype is a honeycomb optotype.
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| JP2012100756A (en) * | 2010-11-08 | 2012-05-31 | Panasonic Corp | Dominant eye test system |
| CN103547210A (en) * | 2011-03-25 | 2014-01-29 | 埃西勒国际通用光学公司 | Device and process for determining the dominant eye of a patient |
| CN105916432A (en) * | 2013-11-28 | 2016-08-31 | Ipro有限责任公司 | Method for representing optotypes, optotype representation, associated use and image output device |
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| US8328357B2 (en) * | 2009-03-28 | 2012-12-11 | Davis Andrew P | Viewing device to minimize parallax |
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| JP2012100756A (en) * | 2010-11-08 | 2012-05-31 | Panasonic Corp | Dominant eye test system |
| CN103547210A (en) * | 2011-03-25 | 2014-01-29 | 埃西勒国际通用光学公司 | Device and process for determining the dominant eye of a patient |
| CN105916432A (en) * | 2013-11-28 | 2016-08-31 | Ipro有限责任公司 | Method for representing optotypes, optotype representation, associated use and image output device |
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