CN110604541B - Binocular balance detection system and detection method thereof - Google Patents
Binocular balance detection system and detection method thereof Download PDFInfo
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- CN110604541B CN110604541B CN201911013994.XA CN201911013994A CN110604541B CN 110604541 B CN110604541 B CN 110604541B CN 201911013994 A CN201911013994 A CN 201911013994A CN 110604541 B CN110604541 B CN 110604541B
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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
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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
- A61B3/08—Subjective types, i.e. testing apparatus requiring the active assistance of the patient for testing binocular or stereoscopic vision, e.g. strabismus
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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
- A61B3/08—Subjective types, i.e. testing apparatus requiring the active assistance of the patient for testing binocular or stereoscopic vision, e.g. strabismus
- A61B3/085—Subjective types, i.e. testing apparatus requiring the active assistance of the patient for testing binocular or stereoscopic vision, e.g. strabismus for testing strabismus
Abstract
The invention discloses a binocular balance detection system and a detection method thereof, wherein the detection system is provided with a vision dividing system, an input terminal and a detection terminal, the detection terminal randomly generates 2 different detection sighting marks to generate a detection image, and the vision dividing system respectively projects the 2 detection sighting marks in the detection image to the eyes of a testee. The input terminal sends the observation result of the testee to the detection terminal, the detection terminal determines the visual inhibition point of the testee according to the observation result and the actual combined image result of 2 detection visual marks, and the corresponding inhibition point data determines the binocular balance condition of the testee according to the visual inhibition points of the testee under different visual mark sizes.
Description
Technical Field
The invention relates to the field of eye testing equipment, in particular to a binocular balance detection system and a detection method thereof.
Background
The images formed by the corresponding points of the external objects on the retinas of the two eyes are integrated through the visual center, so that people feel that the images are not two separated objects but a complete three-dimensional image, and the function is called the function of single vision of the two eyes. A binocular single vision is formed, and both eyes must have simultaneous perception, i.e., simultaneous vision. Good simultaneous perception is that the size, shape, definition, contrast and the respective reflected directions of images formed by the same object on the retinas of the left and right eyes are the same, the same adjustment is generated when the same-distance object is observed, the motion of the two eyes is the same as the target following capability, and the information transmission capability of the two eyes to the center is relatively balanced.
In fact, when two eyes are simultaneously watching a target, the visual contributions of the two eyes are not balanced, wherein the eye playing the dominant role is the dominant eye, or the dominant eye and the dominant eye, and the non-dominant eye is the auxiliary eye. When one of the balance elements of the binocular image is broken, normal binocular vision may be affected, and the larger the difference is, the greater the effect is, until monocular suppression occurs, and binocular simultaneous perception function is lost. Fusion function and stereoscopy are not possible without simultaneous perception.
The balance of eyes will affect the habit of using eyes and the development of vision function of children's eyes. The binocular balance and the inspection of the leading eye are very important in the optometric prescription, and when the prescription of the prescription is based on the inspection results of the binocular balance and the leading eye, the visual fatigue of a wearer is reduced. Due to the imbalance of information conduction of both eyes of a patient with amblyopia, the amblyopia is easy to inhibit, and normal binocular vision cannot be formed, so that binocular balance is often applied to diagnosis and treatment of amblyopia.
The computer technology is gradually applied to visual function detection, and the existing inspection result of detecting binocular balance through a computer is a specific binocular information difference value, namely a binocular balance point under a specific visual target size. When evaluating the binocular interaction, the method examines the condition that the binocular does not generate monocular inhibition and can obtain the simultaneous perception function, and has very important significance for guiding the visual training of weak strabismus.
Disclosure of Invention
In order to solve the above technical problems, the present invention provides a binocular balance detection system and a detection method thereof, which obtains visual suppression points formed by signal intensity differences of input binocular images when the two eyes of a subject observe images of different sizes by analyzing conditions of visual suppression occurring when the input images are observed by the two eyes, and fits a binocular balance curve with the signal intensity difference data to determine the binocular balance condition of the subject.
The technical scheme is as follows:
in a first aspect, a binocular balance detection system is provided with:
the vision dividing system is used for projecting 2 detection sighting marks in the detection image to the left eye and the right eye of the testee respectively;
the input terminal is used for inputting the observation result of the testee on the detection image;
the detection terminal is used for randomly selecting 2 detection sighting marks to generate a detection image, and adjusting the signal intensity of the 2 detection sighting marks according to an observation result until other vision inhibition points of the detected eye are determined;
the vision inhibition points of the left eye and the right eye of the testee to the detection images with different sighting mark sizes are determined, and the binocular balance condition of the testee is determined through all the vision inhibition point data;
with reference to the first aspect, in a first implementable manner of the first aspect, the determining, by the detection terminal, a visual suppression point includes:
the detection terminal acquires an observation result input by the input terminal;
determining the inhibition status of the tested eye according to the image combination result and the observation result;
adjusting the signal intensity of the 2 detection sighting marks, and acquiring the input observation result again;
the above steps are circulated until other inhibition conditions of the tested eye are changed;
and determining the vision inhibition points of the detected eye according to the change condition of the inhibition condition.
With reference to the first implementable manner of the first aspect, in a second implementable manner of the first aspect, when the inhibition status of the detected eye is not changed, the method further includes: the detection terminal randomly selects any one or more updating modes from a plurality of preset updating modes to update 2 detection sighting marks.
With reference to the second implementable manner of the first aspect, in a third implementable manner of the first aspect, the 2 detection optotypes are annular optotypes with different numbers of gaps.
With reference to the third implementable manner of the first aspect, in a fourth implementable manner of the first aspect, the updating means includes:
rotating the two detection sighting marks by a certain angle in a coordinated manner;
or randomly selecting 1 or 2 different detection targets from other stored different detection targets for replacement.
With reference to the first aspect and any one of the first to fourth implementable manners of the first aspect, in a fifth implementable manner of the first aspect, the determining, by the detection terminal, a binocular balance condition includes:
fitting a corresponding visual inhibition curve according to the visual inhibition point data of the left eye and the right eye under different visual target sizes;
determining a simultaneous perception area of the testee through the visual suppression curves corresponding to the left eye and the right eye, and fitting a binocular balance curve;
and determining the binocular balance condition of the testee through the distribution of the binocular balance curve in the simultaneous perception area.
With reference to the first aspect and any one of the first to fourth implementable manners of the first aspect, in a sixth implementable manner of the first aspect, the detection terminal is further configured to detect simultaneous perceptual coincidence sites of both eyes of the subject.
With reference to the first aspect and any one of the first to fourth realizable manners of the first aspect, in a seventh realizable manner of the first aspect, the view-dividing system is provided with VR glasses, or a synoptophore, or a display and red-blue glasses, or a display and polarized glasses.
In a second aspect, a detection method of a binocular balance detection system is provided, which includes:
the above steps are circulated until the visual inhibition point data of the left eye and the right eye for various visual target sizes are determined;
and 6, determining the balance condition of the eyes of the testee through all the vision inhibition point data.
With reference to the second aspect, in a first implementable manner of the second aspect, the step 1 includes:
determining simultaneous perceptual coincidence sites of both eyes of a testee;
randomly selecting 2 different detection sighting marks;
setting 2 detection sighting target positions according to the simultaneous perception coincidence site to generate a detection image;
2 detection sighting marks in the detection image are projected to the left eye and the right eye of the testee respectively through a vision separating system.
With reference to the second aspect, in a second implementation manner of the second aspect, the determining the simultaneous perceptual coincidence site of the two eyes of the subject includes:
s1, selecting 2 visual targets with obvious difference and easy-to-identify geometric center by the detection terminal to form an inspection image, and placing the inspection image at a random position near the center of an inspection interface;
step S2, projecting the 2 visual targets to the left eye and the right eye of the testee through the vision separating system respectively;
step S3, moving the small sighting target until the testee observes that the center of the small sighting target is overlapped with the center of the large sighting target, and recording the relative offset direction, the horizontal offset and the vertical offset of the large sighting target and the small sighting target at the moment;
step S4, changing the random positions of the 2 sighting marks in the inspection image, and interchanging the eye types of the 2 sighting mark projection;
step S5, moving the small sighting target again until the testee observes that the center of the small sighting target is superposed with the center of the large sighting target, and recording the relative offset direction, the horizontal offset and the vertical offset of the large sighting target and the small sighting target at the moment;
and step S6, determining the simultaneous perception coincidence site of the two eyes through the relative offset direction, the horizontal offset and the vertical offset obtained twice.
With reference to the second aspect, in a third implementable manner of the second aspect, the step 3 includes:
the detection terminal acquires an observation result input by the input terminal;
determining the inhibition status of the tested eye according to the image combination result and the observation result;
adjusting the signal intensity of the 2 detection sighting marks, and acquiring the input observation result again;
and circulating the steps until other inhibition conditions of the tested eye are changed.
With reference to the third implementable manner of the second aspect, in a fourth implementable manner of the second aspect, when the inhibition status of the detected eye is not changed, the method further includes: the detection terminal randomly selects any one or more updating modes from a plurality of preset updating modes to update 2 detection sighting marks.
With reference to the fourth implementable manner of the second aspect, in a fifth implementable manner of the second aspect, the updating means includes:
rotating the two detection sighting marks by a certain angle in a coordinated manner;
or randomly selecting 1 or 2 different detection targets from other stored different detection targets for replacement.
With reference to the second aspect and any one of the first to fourth implementable manners of the second aspect, in a sixth implementable manner of the second aspect, the step 6 includes:
fitting a corresponding visual inhibition curve according to the visual inhibition point data of the left eye and the right eye under different visual target sizes;
determining a simultaneous perception area of the testee through the visual suppression curves corresponding to the left eye and the right eye, and fitting a binocular balance curve;
and determining the binocular balance condition of the testee through the distribution of the binocular balance curve in the simultaneous perception area.
Has the advantages that: the data of visual suppression, simultaneous perception and binocular balance when two eyes watch the sight marks with different sizes can be obtained simultaneously, and the binocular interaction condition is reflected systematically. During detection, two eyes respectively watch visual targets with highly similar visual sensation, and the visual targets are more in line with the two-eye interaction condition in the actual eye using process. The binocular input signal intensity ratio when the single-eye suppression occurs to the left eye and the right eye is respectively used as suppression point data, and a binocular simultaneous perception area and binocular balance curve is obtained, so that the binocular perception balance condition can be reflected more comprehensively. The influence of subjective factors of a tested person on the detection result can be eliminated, and the detection result is more objective and accurate; meanwhile, the testee can independently complete the detection process by himself, and the method is conveniently applied to remote detection.
Drawings
FIG. 1 is a system block diagram of a binocular balance detection system;
FIG. 2 is a schematic view of a circular optotype;
FIG. 3 is a diagram of the distribution of visual inhibitory spots for two eyes at different optotype sizes;
FIG. 4 is a histogram of the binocular visual balance curve;
FIG. 5 is a flow chart of a detection method of the binocular balance detection system;
FIG. 6 is a flow chart of a method of determining a point of visual suppression;
FIG. 7 is a flow chart for determining a binocular balance condition;
FIG. 8 is a flowchart of the detection of simultaneous visual coincident sites;
FIG. 9 is a schematic view of visual target detection of simultaneous visual coincidence sites.
Detailed Description
The invention is further illustrated by the following examples and figures.
A system block diagram of a binocular balance detection system as shown in fig. 1, the detection system being provided with:
the vision dividing system is used for projecting 2 detection sighting marks in the detection image to the left eye and the right eye of the testee respectively;
the input terminal is used for inputting the observation result of the testee on the detection image;
the detection terminal is used for randomly selecting 2 detection sighting marks to generate a detection image, and adjusting the signal intensity of the 2 detection sighting marks according to an observation result until determining other visual inhibition points of the detected eye;
the vision inhibition points of the left eye and the right eye of the testee to the detection images with different sighting mark sizes are determined, and the binocular balance condition of the testee is determined through all the vision inhibition point data;
specifically, the detection terminal may randomly select 2 different detection optotypes from a plurality of different detection optotypes stored, for example, the detection terminal selects the optotype Pic3 and the optotype Pic4a in fig. 2. And 2 detection sighting marks are respectively projected to the eyes of the testee through a vision separating system.
The detection terminal can acquire the observation result of the detected image of the detected person through the input terminal, determine whether the detected eye is the left eye or the right eye, and determine the visual suppression condition of the detected eye according to the observation result, the detection terminal can adjust the signal intensity of 2 detection sighting marks, such as contrast, ambiguity and the like, through the visual suppression condition so as to change the signal intensity difference of the 2 detection sighting marks until determining the visual suppression point of the detected eye, the visual suppression point refers to a change node at which the detected eye has visual suppression or is not suppressed, and the visual suppression point data is the signal intensity ratio between the detected eye corresponding to the visual suppression point and another eye.
The detection terminal constructs a corresponding visual inhibition curve through the visual inhibition point data of the left eye and the right eye about detection images with different sighting mark sizes, and fits a binocular balance curve by combining the visual inhibition curves of the left eye and the right eye to determine the binocular balance condition of the testee.
In this embodiment, preferably, as shown in fig. 6, the determining, by the detection terminal, a visual suppression point includes:
the detection terminal acquires an observation result input by the input terminal;
determining the inhibition status of the tested eye according to the image combination result and the observation result;
adjusting the signal intensity of the 2 detection sighting marks, and acquiring the input observation result again;
the above steps are circulated until other inhibition conditions of the tested eye are changed;
and determining the vision inhibition points of the detected eye according to the change condition of the inhibition condition.
Specifically, when 2 ring optotypes are initially projected onto the left and right eyes, 2 possible situations arise: the other is that the detected eye is not inhibited, and at the moment, the signal intensity of the annular sighting mark projected to the eye corresponding to the detected eye is reduced step by the detection terminal until the detected eye is inhibited, so that the visual inhibition point can be determined.
The other method is that the detected eye is inhibited, at the moment, the detection terminal is required to gradually reduce the signal intensity of the detection sighting mark projected to the detected eye until the detected eye is not inhibited, and the vision inhibition point is a node corresponding to the detected eye before the detected eye is not inhibited.
And how to determine whether the detected eye is inhibited or not, the detection terminal can determine the specific inhibition condition by comparing the observation result with the combined image result after the actual combined image of the 2 detection sighting marks. Such as: the optotype Pic3 and the optotype Pic4a were projected to the left and right eyes of the subject, respectively, and the number of actual combined notches of the optotype Pic3 and the optotype Pic4a was 1, indicating that the subject eye was not inhibited when the number of notches was 1 or 3 in the observation results. At this time, the detection terminal adjusts the signal intensity of the sighting mark Pic3 and obtains the observation result again. And circulating the steps until the number of the gaps of the observation result obtained by the detection terminal is 4, which indicates that the detected eye is inhibited, and the inhibition condition of the detected eye is changed, so that the vision inhibition point of the detected eye can be determined.
In this embodiment, preferably, when the inhibition status of the detected eye is not changed, the method further includes: the detection terminal randomly selects any one or more updating modes from a plurality of preset updating modes to update 2 detection sighting marks.
Specifically, the detection terminal updates 2 detection sighting marks by randomly selecting an updating mode, so that the randomness of the number of gaps after the annular sighting marks are combined, the influence of subjective factors of a testee on detection is reduced, and the detection accuracy is improved.
In this embodiment, preferably, the 2 detection sighting marks are annular sighting marks with different gaps. Because the 2 annular sighting marks are highly similar, the sighting mark is more suitable for the actual eye scene.
In this embodiment, preferably, the updating method includes:
rotating the two detection sighting marks by a certain angle in a coordinated manner;
or randomly selecting 1 or 2 different detection targets from other stored different detection targets for replacement.
Specifically, the detection terminal can rotate 2 annular sighting marks by a certain angle, so that the notch position of the combined image after the actual coincidence of the 2 annular sighting marks is changed, or 1 or 2 annular sighting marks are selected from other annular sighting marks to replace the previously selected 2 annular sighting marks, the number and the notch position of the notch adopting the combined image are changed, or the previously selected annular sighting marks are replaced, and then the replaced 2 annular sighting marks are rotated by a certain angle.
After the annular sighting marks are updated through the updating modes, the gap distribution condition of the combined images of the 2 annular sighting marks can be changed, the randomness of the combined images of the annular sighting marks is improved, the influence of subjective factors of a testee on detection is reduced, and the detection accuracy is improved.
In this embodiment, preferably, as shown in fig. 7, the determining, by the detection terminal, the binocular balance condition includes:
fitting a corresponding visual inhibition curve according to the visual inhibition point data of the left eye and the right eye under different visual target sizes;
determining a simultaneous perception area of the testee through the visual suppression curves corresponding to the left eye and the right eye, and fitting a binocular balance curve;
and determining the binocular balance condition of the testee through the distribution of the binocular balance curve in the simultaneous perception area.
Specifically, the detection terminal can establish a simultaneous perception distribution map as shown in fig. 3 by using the visual suppression point data for the different optotype sizes of the left and right eyes. The simultaneous perception distribution map comprises visual suppression curves of two eyes, wherein the left side curve is a left eye visual suppression curve, the right side curve is a right eye visual suppression curve, and a region between the two visual suppression curves is a simultaneous perception region.
The detecting terminal can also fit a binocular vision balance curve as shown in fig. 4 according to the left and right eye vision inhibition curves, wherein the dotted line is the binocular vision balance curve. The binocular balance condition between the left eye and the right eye can be reflected intuitively by the positions of the binocular balance curves in the simultaneous perception distribution map.
In this embodiment, preferably, the detection terminal is further configured to detect simultaneous perceptual coincidence sites of both eyes of the subject. The initial positions of 2 detection visual targets in a detection image can be set through the simultaneous perception coincidence sites of the eyes, which is beneficial to evaluating the strabismus patients, especially the strabismus patients with amblyopia, and helps doctors to better select the opportunity and scheme for performing amblyopia training or strabismus surgery.
In this embodiment, preferably, the vision separating system is provided with VR glasses, or a synoptophore, or a display and red and blue glasses, or a display and polarized glasses.
Fig. 5 is a flow chart of a detection method of the binocular balance detection system, the detection method comprising:
the above steps are circulated until the visual inhibition point data of the left eye and the right eye for various visual target sizes are determined;
and 6, determining the balance condition of the eyes of the testee through all the vision inhibition point data.
Specifically, the detection terminal detects the vision suppression points of the detected eye by changing the signal intensity of 2 detection targets, and uses the signal intensity ratio of the 2 detection targets corresponding to the vision suppression points as the vision suppression data of the detected eye in the size scale of the target. And circulating the steps until the vision inhibition point data of the tested eye under different preset sighting mark scales is determined, exchanging the left eye and the right eye, and repeating the steps until the vision inhibition point data of 2 eyes under the condition of observing the sighting marks with different sizes is determined. And establishing a visual inhibition curve of each eye through the visual inhibition point data, determining a simultaneous perception area and a binocular balance curve of the testee through the visual inhibition curves of 2 eyes, and determining the binocular balance condition of the testee through the distribution condition of the binocular balance curve in the simultaneous perception area.
In this embodiment, preferably, the step 1 includes:
determining simultaneous perceptual coincidence sites of both eyes of a testee;
randomly selecting 2 different detection sighting marks;
setting 2 detection sighting target positions according to the simultaneous perception coincidence site to generate a detection image;
2 detection sighting marks in the detection image are projected to the left eye and the right eye of the testee respectively through a vision separating system.
The position of the detection sighting target in the detection image is set through the simultaneous perception coincidence site, which is beneficial to evaluating the strabismus patients, especially the strabismus patients with amblyopia, the binocular balance condition after the strabismus operation helps doctors to better select the opportunity and scheme for performing amblyopia training or strabismus operation.
In this embodiment, preferably, as shown in fig. 8, the determining the simultaneous perceptual coincidence site of the two eyes of the subject includes:
s1, selecting 2 visual targets with obvious difference and easy-to-identify geometric center by the detection terminal to form an inspection image, and placing the inspection image at a random position near the center of an inspection interface;
step S2, projecting the 2 visual targets to the left eye and the right eye of the testee through the vision separating system respectively;
step S3, moving the small sighting target until the testee observes that the center of the small sighting target is overlapped with the center of the large sighting target, and recording the relative offset direction, the horizontal offset and the vertical offset of the large sighting target and the small sighting target at the moment;
step S4, changing the random positions of the 2 sighting marks in the inspection image, and interchanging the eye types of the 2 sighting mark projection;
step S5, moving the small sighting target again until the testee observes that the center of the small sighting target is superposed with the center of the large sighting target, and recording the relative offset direction, the horizontal offset and the vertical offset of the large sighting target and the small sighting target at the moment;
and step S6, determining the simultaneous perception coincidence site of the two eyes through the relative offset direction, the horizontal offset and the vertical offset obtained twice.
Specifically, as shown in fig. 9, in which the optotype TestPic1 is a large optotype and the optotype TestPic2 is a small optotype, the large optotype and the small optotype are projected to the left and right eyes of the examinee through the vision separation system, and the optotype TestPic2 is moved until the examinee observes an image as shown in TestPic3, at which time the test terminal records the relative shift directions, the horizontal shift amounts, and the vertical shift amounts of the large and small optotypes. In order to more accurately detect the simultaneous perception coincidence site of the testee, the invention restores the large visual target and the small visual target to the initial positions, changes the random positions of the 2 visual targets, projects the positions to the right eye and the left eye of the testee through the vision separating system, and repeats the process. And determining the simultaneous perceptual coincidence site of the testee according to the relative offset direction, the horizontal offset and the vertical offset between the large visual target and the small visual target obtained by two tests.
In this embodiment, preferably, as shown in fig. 6, the step 3 includes:
the detection terminal acquires an observation result input by the input terminal;
determining the inhibition status of the tested eye according to the image combination result and the observation result;
adjusting the signal intensity of the 2 detection sighting marks, and acquiring the input observation result again;
and circulating the steps until other inhibition conditions of the tested eye are changed.
Specifically, as the annular sighting target with the gap is adopted as the detection sighting target, the detection terminal can determine the inhibition condition of the two eyes of the tested person through the number of the gaps in the observation result and the number of the gaps of the combined image after the actual combination of 2 annular sighting targets, and adjust the signal intensity of 2 annular sighting targets according to the inhibition condition until the vision inhibition condition is changed, thereby determining other vision inhibition points of the tested eye.
In this embodiment, preferably, when the inhibition status of the detected eye is not changed, the method further includes: the detection terminal randomly selects any one or more updating modes from a plurality of preset updating modes to update 2 detection sighting marks.
Particularly, 2 annular sighting marks are updated, the randomness of the number of gaps after the images of the 2 annular sighting marks are combined is improved, the influence of subjective factors on detection can be reduced, and the detection accuracy is improved.
In this embodiment, preferably, the updating method includes:
rotating the two detection sighting marks by a certain angle in a coordinated manner;
or randomly selecting 1 or 2 different detection targets from other stored different detection targets for replacement.
Specifically, after the annular sighting target rotates around the sighting target center, the position of the gap of the annular sighting target can be changed, so that the number of the gaps of 2 annular sighting target images is changed, and the randomness is improved. And other annular sighting marks are selected for replacement, so that the positions and the number of gaps are changed simultaneously, and the randomness is improved as well.
In this embodiment, preferably, the step 6 includes:
fitting a corresponding visual inhibition curve according to the visual inhibition point data of the left eye and the right eye under different visual target sizes;
determining a simultaneous perception area of the testee through the visual suppression curves corresponding to the left eye and the right eye, and fitting a binocular balance curve;
and determining the binocular balance condition of the testee through the distribution of the binocular balance curve in the simultaneous perception area.
Specifically, the detection terminal can establish a simultaneous perception distribution map as shown in fig. 3 by using the visual suppression point data for the different optotype sizes of the left and right eyes. The simultaneous perception distribution map comprises visual suppression curves of two eyes, wherein the left side curve is a left eye visual suppression curve, the right side curve is a right eye visual suppression curve, and a region between the two visual suppression curves is a simultaneous perception region.
The detecting terminal can also fit a binocular vision balance curve as shown in fig. 4 according to the left and right eye vision inhibition curves, wherein the dotted line is the binocular vision balance curve. The binocular balance condition between the left eye and the right eye can be reflected intuitively by the positions of the binocular balance curves in the simultaneous perception distribution map. As shown in fig. 4, the binocular balance curve shifts the region corresponding to the right eye, indicating that the right eye is the dominant eye of the subject.
Finally, it should be noted that the above-mentioned description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and scope of the present invention.
Claims (13)
1. A binocular balance detection system, comprising:
the vision dividing system is used for projecting 2 detection sighting marks in the detection image to the left eye and the right eye of the testee respectively;
the input terminal is used for inputting the observation result of the testee on the detection image;
the detection terminal is used for randomly selecting 2 detection sighting marks to generate a detection image, and adjusting the signal intensity of the 2 detection sighting marks according to an observation result until other vision inhibition points of the detected eye are determined;
the vision inhibition points of the left eye and the right eye of the testee to the detection images with different sighting mark sizes are determined, and the binocular balance condition of the testee is determined through all the vision inhibition point data;
the detection terminal determines the binocular balance condition and comprises the following steps:
fitting a corresponding visual inhibition curve according to the visual inhibition point data of the left eye and the right eye under different visual target sizes;
determining a simultaneous perception area of the testee through the visual suppression curves corresponding to the left eye and the right eye, and fitting a binocular balance curve;
and determining the binocular balance condition of the testee through the distribution of the binocular balance curve in the simultaneous perception area.
2. The binocular balance detection system of claim 1, wherein the detection terminal determining a point of visual suppression comprises:
the detection terminal acquires an observation result input by the input terminal;
determining the inhibition status of the tested eye according to the image combination result and the observation result;
adjusting the signal intensity of the 2 detection sighting marks, and acquiring the input observation result again;
the above steps are circulated until other inhibition conditions of the tested eye are changed;
and determining the vision inhibition points of the detected eye according to the change condition of the inhibition condition.
3. The binocular balance detecting system of claim 2, wherein: when the inhibition status of the detected eye is not changed, the detection terminal randomly selects any one or more updating modes from the preset multiple updating modes to update 2 detection sighting marks.
4. The binocular balance detecting system of claim 3, wherein: and 2, the detection sighting marks are annular sighting marks with different gaps.
5. The binocular balance detecting system of claim 4, wherein: the updating mode comprises the following steps:
rotating the two detection sighting marks by a certain angle in a coordinated manner;
or randomly selecting 1 or 2 different detection targets from other stored different detection targets for replacement.
6. The binocular balance detecting system of any one of claims 1-5, wherein: the detection terminal is also used for detecting the simultaneous perception coincidence sites of the two eyes of the testee.
7. The binocular balance detecting system of any one of claims 1-5, wherein the vision separating system is provided with VR glasses, or a synoptophore, or a display and red and blue glasses, or a display and polarized glasses.
8. A method of testing a binocular balance testing system, comprising:
step 1, a detection terminal randomly selects 2 different detection sighting marks to generate detection images, and the 2 detection sighting marks in the detection images are projected to the left eye and the right eye of a testee through a vision separating system;
step 2, obtaining an observation result sent by an input terminal;
step 3, judging the visual inhibition points of the detected eyes under the size of the sighting marks of the 2 detection sighting marks according to the observation result and the image combination result of the 2 detection sighting marks;
step 4, determining other visual inhibition point data of the detected eye according to the signal intensity of 2 detection sighting marks corresponding to the visual inhibition points;
step 5, adjusting the size of the 2 detected optotypes and returning to the step 2;
the above steps are circulated until the visual inhibition point data of the left eye and the right eye for various visual target sizes are determined;
step 6, determining the binocular balance condition of the testee through all the vision inhibition point data;
the step 6 comprises the following steps:
fitting a corresponding visual inhibition curve according to the visual inhibition point data of the left eye and the right eye under different visual target sizes;
determining a simultaneous perception area of the testee through the visual suppression curves corresponding to the left eye and the right eye, and fitting a binocular balance curve;
and determining the binocular balance condition of the testee through the distribution of the binocular balance curve in the simultaneous perception area.
9. The detecting method of a binocular balance detecting system according to claim 8, wherein the step 1 includes:
determining simultaneous perceptual coincidence sites of both eyes of a testee;
randomly selecting 2 different detection sighting marks;
setting 2 detection sighting target positions according to the simultaneous perception coincidence site to generate a detection image;
2 detection sighting marks in the detection image are projected to the left eye and the right eye of the testee respectively through a vision separating system.
10. The method as claimed in claim 9, wherein the determining the simultaneous perceptual coincidence sites of the eyes of the subject comprises:
s1, selecting 2 visual targets with obvious difference and easy-to-identify geometric center by the detection terminal to form an inspection image, and placing the inspection image at a random position near the center of an inspection interface;
step S2, projecting the 2 visual targets to the left eye and the right eye of the testee through the vision separating system respectively;
step S3, moving the small sighting target until the testee observes that the center of the small sighting target is overlapped with the center of the large sighting target, and recording the relative offset direction, the horizontal offset and the vertical offset of the large sighting target and the small sighting target at the moment;
step S4, changing the random positions of the 2 sighting marks in the inspection image, and interchanging the eye types of the 2 sighting mark projection;
step S5, moving the small sighting target again until the testee observes that the center of the small sighting target is superposed with the center of the large sighting target, and recording the relative offset direction, the horizontal offset and the vertical offset of the large sighting target and the small sighting target at the moment;
and step S6, determining the simultaneous perception coincidence site of the two eyes through the relative offset direction, the horizontal offset and the vertical offset obtained twice.
11. The detecting method of a binocular balance detecting system according to claim 8, wherein the step 3 includes:
the detection terminal acquires an observation result input by the input terminal;
determining the inhibition status of the tested eye according to the image combination result and the observation result;
adjusting the signal intensity of the 2 detection sighting marks, and acquiring the input observation result again;
and circulating the steps until the inhibition condition of the detected eye is changed, and determining the visual inhibition point of the detected eye according to the change condition.
12. The detecting method of the binocular balance detecting system according to claim 11, further comprising, when the other suppression status of the detected eye is not changed: the detection terminal randomly selects any one or more updating modes from a plurality of preset updating modes to update 2 detection sighting marks.
13. The detecting method of a binocular balance detecting system according to claim 12, wherein the updating manner includes:
rotating the two detection sighting marks by a certain angle in a coordinated manner;
or randomly selecting 1 or 2 different detection targets from other stored different detection targets for replacement.
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