Electronic vision detection system, method and device

Abstract

The invention discloses an electronic vision detection system, method and device, and relates to the field of vision detection.The system comprises a data generation module, a man-machine interaction module, a display module and an eye movement tracking module; the data generation module generates electronic sighting marks of different human eye vision levels according to a preset test distance by adopting a preferential fixation method; the electronic sighting mark is formed by arranging black stripes and white stripes on a background with uniform gray scale; the man-machine interaction module calls a corresponding electronic sighting mark from the data generation module according to the collected vision detection instruction; the display module displays the electronic sighting mark to the tested person; the eye movement tracking module collects human eye watching information of a detected person and obtains a vision detection instruction, and the human eye vision level is determined according to the human eye watching information and the vision detection instruction. The method can reduce the detection difficulty, objectively evaluate the vision level, and improve the accuracy of the vision detection result.

Description

Technical Field

[0001] The present application relates to the field of vision detection, and in particular to an electronic vision detection system, method and device. Background Art

[0002] The most commonly used vision testing methods currently require the subject to identify and explain the target object they see in order to complete the test. However, for children under 3 years old, adults with low cognitive levels or difficulty interacting with others (such as the deaf and dumb) it is difficult for them to interact with the tester and thus cannot complete the vision test. In addition, the existing vision testing devices are subject to human subjectivity, resulting in inaccurate test results. Summary of the invention

[0003] The purpose of this application is to provide an electronic vision detection system, method and device, which can reduce the detection difficulty, objectively evaluate the vision level, and improve the accuracy of vision detection results.

[0004] To achieve the above objectives, this application provides the following solutions: In a first aspect, the present application provides an electronic vision detection system, including a data generation module, a human-computer interaction module, a display module, and an eye tracking module; The data generation module is used to: use the priority gaze method to generate electronic sight marks of different human vision levels according to the preset test distance; the electronic sight marks are composed of black stripes and white stripes set on a background with uniform grayscale; The human-computer interaction module is used to: retrieve the corresponding electronic sight mark from the data generation module according to the collected vision detection instruction; The display module is used to: display the electronic sight mark to the person being tested; The eye tracking module is used to: collect the eye gaze information of the person being tested and obtain the vision detection instruction; and determine the person's vision level based on the eye gaze information and the vision detection instruction.

[0005] In a second aspect, the present application provides an electronic vision detection method, comprising: The preferred fixation method is used to generate electronic sight marks of different human vision levels according to the preset test distance; the electronic sight marks are composed of black stripes and white stripes set on a background with uniform grayscale; According to the collected vision test instructions, the corresponding electronic sight mark is retrieved; Displaying the electronic sight mark to the person being tested; Collect the eye gaze information of the person being tested and obtain the vision detection instruction; determine the person's vision level based on the eye gaze information and the vision detection instruction.

[0006] In a third aspect, the present application provides an electronic vision detection device, including a detection end; the detection end includes a memory and a processor, the memory stores a computer program, and the processor implements the steps of the above-mentioned electronic vision detection method when executing the computer program; The detection end is respectively connected to the detection display screen, the display display screen and the eye tracker; The detection display screen is used to: complete the interaction with the detection personnel, receive the input information of the detection personnel, and generate the vision detection instruction; transmit the vision detection instruction to the detection end; The display screen is used to: display the electronic sight mark generated in the detection terminal to the person being tested; The eye tracker is arranged at the eyes of the person being measured, and is used to detect the eye gaze information of the person being measured and transmit the information to the detection end.

[0007] According to the specific embodiments provided by the present application, the present application has the following technical effects: through the collaboration of the data generation module, the human-computer interaction module, the display module and the eye tracking module, the detection process based on the priority gaze method is realized, and the corresponding human eye vision level can be obtained without the need for the person being tested to identify and explain, and without feedback. It can be used by children and special groups with low cognitive levels, reducing the difficulty of detection. In addition, the data generation module is used to generate electronic sight marks, and the eye tracking module is used to collect the eye gaze information of the person being tested and determine the human eye vision level based on this, which reduces the influence of human subjectivity, realizes the objective evaluation of the visual level of the person being tested, and improves the accuracy of the vision test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0009] Figure 1 This is a structural schematic diagram of an electronic vision detection system in one embodiment of the present application.

[0010] Figure 2 Schematic diagram of the human eye resolution angle in one embodiment of the present application.

[0011] Figure 3 Schematic diagram of a parameter setting unit in one embodiment of the present application.

[0012] Figure 4 Schematic diagram of a vision calculation unit in one embodiment of the present application.

[0013] Figure 5 Schematic diagram of a gray matrix generating unit in one embodiment of the present application.

[0014] Figure 6 This is a schematic diagram of the structure of an electronic vision detection device in one embodiment of the present application.

[0015] Figure numerals: 11 - detection end, 12 - detection display screen, 13 - display display screen, 14 - eye tracker. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0017] The present application provides an electronic vision detection system, method and device to achieve accurate measurement of vision for children under 3 years old with low cognitive levels or adults with low cognitive levels or who have difficulty interacting with others (such as special groups such as the deaf and dumb), and enhance the portability and ease of use of the vision chart, reduce the cost of use, alleviate the shortage of medical resources, and help to promptly detect vision abnormalities and take corresponding intervention treatments.

[0018] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0019] In an exemplary embodiment, Figure 1 As shown, an electronic vision detection system is provided, including a data generation module, a human-computer interaction module, a display module and an eye tracking module.

[0020] The working process of the overall system is as follows: the data generation module is used to obtain the pixel resolution, pixel pitch and manually selected preset test distance of the display module, and based on this, the relevant parameters are called and set; the human-computer interaction module is used to provide distance selection, direction selection, vision level selection and sight mark pattern selection functions, and the detection conditions are adjusted by interacting with the detection personnel, and the grayscale data (that is, the electronic sight mark in the form of a grayscale matrix generated in the data generation module) is called up, and then displayed by the display module; the eye tracking module is used to monitor whether the eyeball is turned to the specified sight mark direction through the eye tracker, that is, the eye tracker is used to read the human eye gaze information. If the eyeball is turned to the specified sight mark direction, the next test can be carried out or the test results can be recorded as needed to determine the final human eye vision level.

[0021] The above working process can be regarded as an offline working process. In practical applications, it can also be set as an online working process. The difference between this working process and the above working process is that the human-computer interaction module is used to first select the distance, direction, vision level and sight mark pattern, and then input them into the data generation module. The data generation module generates the corresponding electronic sight mark according to the detection conditions obtained by the above selection. However, such an online generated working process may be interrupted, and the application stability is not as good as the above offline working process.

[0022] In a specific practical application, the data generation module is used to: use the priority gaze method to generate electronic sight marks of different human vision levels according to a preset test distance; the electronic sight mark is composed of black stripes and white stripes set on a background with uniform grayscale. The above electronic sight mark can also be understood as an electronic vision card, and the corresponding pattern can be black and white stripes, a boat, a house, an apple, etc. A preset test distance can generate multiple electronic sight marks of different patterns for different human vision levels.

[0023] Among them, the basic principle of generating visual acuity chart sight mark patterns based on the preferential fixation method is vanishing vision, that is, when the line width of the sight mark reaches the resolution limit of the human eye, the sight mark pattern will disappear. Based on this principle, the present application uses a sight mark composed of black stripes and white stripes, and places it on a background with uniform grayscale. Then, when the width of the stripes exceeds the resolution limit of the subject, the sight mark pattern will disappear into the background, that is, blend into the gray background. At this time, the subject will not have a phenomenon of staring at a specific direction for a long time. Based on the above principles, an important criterion for measuring vision level is the human eye resolution angle. The human eye resolution angle is the angle formed when light rays emitted from two points outside the eye intersect when they enter the eye. Figure 2 As shown in the figure, it reflects the resolution ability of the human eye. The smaller the resolution angle of the human eye, the stronger the resolution ability of the human eye. When the resolution angle is smaller than the minimum resolution angle of the human eye, the human eye cannot distinguish objects. The decimal visual acuity standard is measured by the reciprocal of the minimum resolution angle of the human eye (i.e., the limit resolution angle of the human eye), i.e. The formula for calculating the limiting resolution angle of the human eye is: .

[0024] The meaning of the above formula is: a certain distance Below, a certain width The sight mark pattern corresponds to a certain limit resolution angle of the human eye. , which corresponds to a certain level of vision. On this basis, this application can preset the test distance Height from resolvable sight mark Calculated human eye limit resolution angle , and then get the visual acuity level, the calculation formula is as follows: .in, mmRefers to the unit of length, millimeter.

[0025] use To express decimal visual acuity, use Representing the logarithmic visual acuity value, the following formula can be derived: .

[0026] in, L is the logarithmic visual acuity value, n is the number of pixel columns, is the pixel pitch.

[0027] The Snellen visual acuity level standard expresses the visual acuity level as the ratio between the test distance (m) (generally 20 feet, about 6.09m) and the test distance at which the normal eye can distinguish 1 point, expressed as 20 / N. mm The height of an object at 1 foot corresponding to a 1-minute visual angle can be converted into the stripe width of the vision card, that is, the line width , the calculation formula is: From this conversion formula, we can get different test distances N mm Under the condition of different stripe widths, the visual acuity level corresponding to the test distance and the width of the sight mark stripes can be designed.

[0028] The Snellen vision grade standard can also be converted into logarithmic vision standards, decimal vision standards, etc. through a certain conversion relationship. The specific conversion relationship is shown in Table 1 below. That is, Table 1 shows the conversion between the Snellen vision grade standard and the three vision evaluation standards of decimal vision chart, logarithmic vision chart and limiting resolution angle. Based on this conversion method, an electronic vision card (i.e., electronic sight mark) is made. After the test begins, there is no need to use the Sellen vision grade standard that is difficult for ordinary people to interpret, but directly obtain the commonly used logarithmic vision value, and use the logarithmic vision value as the test result, which is more intuitive and easier to understand. In Table 1, 20 / N means that a person with normal vision can clearly see the sight mark or electronic sight mark at a distance of N feet, and the person being tested can see it at a distance of 20 feet.

[0029] Table 1

[0030] Based on the above principle, when the data generation module of the present application is working, it first reads the pixel resolution and pixel pitch in the display module, and obtains the artificially selected test distance value. Then the above three input parameters are processed and calculated. In a practical application, the data generation module includes a parameter setting unit, a vision calculation unit and a grayscale matrix generation unit.

[0031] like Figure 3As shown, the parameter setting unit is used to: select any preset test distance; obtain the pixel resolution and pixel pitch of the display module; call the corresponding number of pixel columns, preset contrast and preset average grayscale according to the preset test distance; generate a grayscale image according to the preset contrast and the preset average grayscale; perform a two-dimensional Fourier transform on the grayscale image to obtain a spectrum diagram; extract features from the spectrum diagram to generate a one-dimensional frequency distribution curve. Throughout the process, pixel resolution and pixel pitch are important considerations to ensure image clarity. In addition, the purpose of adjusting the contrast and average grayscale is to reduce the peak frequency of the one-dimensional frequency distribution curve to a minimum, thereby improving image quality.

[0032] In a specific practical application, when the parameter setting unit calls the corresponding number of pixel columns, preset contrast and preset average grayscale according to the preset test distance, it can match according to the pre-set comparison relationship table to obtain the corresponding number of pixel columns, set contrast and average grayscale; or, the inspection personnel can input the empirical data through the human-computer interaction module to obtain the corresponding number of pixel columns, set contrast and average grayscale. By setting the above three data, the visual effect of the electronic sight mark finally presented in the reality module can be optimized.

[0033] like Figure 4 As shown, the vision calculation unit is connected to the parameter setting unit, and the vision calculation unit is used to calculate the logarithmic vision value according to the pixel pitch, the number of pixel columns corresponding to the preset test distance, and the preset test distance; different logarithmic vision values ​​correspond to different human vision levels. The step of calculating the logarithmic vision value includes: The line width is calculated based on the number of pixel columns corresponding to the preset test distance and the pixel pitch; the current human eye limit resolution angle is calculated based on the line width and the preset test distance; and the current human eye limit resolution angle is converted into a corresponding logarithmic vision value. In the vision calculation unit, logarithmic vision values ​​with different numbers of pixel columns and different preset test distances can be generated in batches.

[0034] like Figure 5 As shown, the grayscale matrix generation unit is connected to the parameter setting unit, and the grayscale matrix generation unit is used to: obtain a preset sight mark pattern; and generate an electronic sight mark based on the preset sight mark pattern, the pixel resolution, the pixel pitch, and the one-dimensional frequency distribution curve. The steps of generating the electronic sight mark include: Based on the preset optotype pattern, piecewise function analysis is performed according to the pixel resolution and the pixel pitch to determine the preset optotype pattern data model; grayscale values ​​are assigned to the preset optotype pattern data model based on the one-dimensional frequency distribution curve to obtain an electronic optotype. The electronic optotype is a grayscale matrix containing optotype information, and is stored for use in a human-computer interaction module.

[0035] When the person being tested is a child, a child vision card can be used, such as the Teller vision card and the Cardiff vision card. The data generation module in this application can generate electronic sight marks for the above two vision cards. The Teller vision card uses a black and white grating pattern as a sight mark, and the Cardiff vision card uses a cartoon pattern that children are interested in as a sight mark. In the Teller vision card, the black and white stripes of the grating pattern are of equal width; in the Cardiff vision card, the pattern is composed of gray lines that are slightly lower than the background gray level.

[0036] Taking the Cardiff vision card as an example, in the step of generating the electronic sight mark within the grayscale matrix generation unit, since the electronic sight mark designed based on the reference Cardiff vision card is not a simple geometric figure, the electronic sight mark needs to be drawn in segments. Each segment can directly draw a simple geometric figure. Finally, the simple geometric figures corresponding to multiple segments are spliced ​​to obtain the preset sight mark pattern data model corresponding to the Cardiff vision card.

[0037] The human-computer interaction module is used to retrieve the corresponding electronic sight mark from the data generation module according to the collected vision detection instructions. Specifically, the tester selects the test distance information, vision level information, sight mark pattern information and orientation information in turn, and inputs them into the human-computer interaction module to obtain the vision detection instructions. The collection of the above four items of information can provide more detailed standards for the subsequent selection of electronic sight marks and provide a data basis for the subsequent determination of the human eye vision level, that is, the human-computer interaction module can be used for the tester to select the corresponding level of vision card, and after selecting the vision card, the corresponding level of electronic vision card sight mark is displayed in the display module.

[0038] The display module is used to display the electronic sight mark to the person being tested. In other words, the display module is used to display the grayscale matrix containing the sight mark information retrieved by the human-computer interaction module. After the person being tested sees the displayed sight mark, the eye movement information is fed back through the eye tracking module.

[0039] The eye tracking module is used to: collect the eye gaze information of the person being tested and obtain the vision detection instruction; determine the vision level of the person according to the eye gaze information and the vision detection instruction; and display the eye gaze information to the tester via the human-computer interaction module to facilitate the tester to determine whether it is necessary to play the electronic sight mark of the next vision level. Determining the vision level of the person according to the eye gaze information and the vision detection instruction includes: (1) Determine whether the eye gaze direction in the eye gaze information is consistent with the direction information.

[0040] (2) If the eye gaze direction in the eye gaze information is consistent with the direction information, the eye vision level corresponding to the electronic sight mark is recorded, and a prompt for the next vision test instruction is generated, which is displayed to the tester through the human-computer interaction module. The tester can determine whether it is necessary to change the test distance, vision level, sight mark pattern, etc. based on the obtained eye gaze direction, so as to update the vision test instruction and then execute the next test process.

[0041] (3) If the eye gaze direction in the eye gaze information is inconsistent with the direction information, the tester may consider that the person being tested "did not see" the electronic sight mark, and record the number of inconsistencies plus one, and record the eye vision level corresponding to the electronic sight mark. Then, when the number of inconsistencies reaches a preset condition, the final eye vision level of the person being tested is determined based on all the recorded eye vision levels.

[0042] In an actual application, the preset conditions can be set as follows: the electronic sight mark for each vision level needs to be tested three times (the specific number of tests for the electronic sight mark for the same vision level can be determined by the tester), and if the electronic sight mark is "not seen" two or more times (the tester can set inconsistent numbers), the tester terminates the test and finally records the corresponding human vision level of the person being tested based on all the recorded human vision levels.

[0043] Compared with the prior art, this application also has the following advantages: (1) The system design of this application is implemented using modular programming. Each module is relatively independent, which is convenient for testing and optimization, and improves the maintainability of the system. The electronic vision chart system is designed by combining software and hardware, which reduces costs and facilitates its popularization and use. Python is used to design the human-computer interaction interface, and the eye tracker is used to provide real-time feedback on the gaze point information of the person being tested, thereby realizing a closed loop of the system.

[0044] (2) This application combines the advantages of the existing paper children's vision cards Teller cards and Cardiff cards, and after theoretical research, combined with spatial frequency analysis, further adjusts the parameters and patterns, designs the contrast, spatial resolution and other parameters of the sight mark, and provides an innovative sight mark design optimization plan to improve the accuracy of vision testing. This application uses the principle of the preferential gaze method to design electronic sight marks, and then uses eye tracking technology to collect the tester's gaze information, which can realize the function of automatically determining the vision level.

[0045] (3) This application uses eye tracking technology to test vision, which does not require complex language communication and subjective cooperation. It is suitable for young children or people with limited language expression ability, reducing the difficulty of testing. Secondly, by accurately capturing the trajectory of children's eye movements, it is possible to objectively evaluate the level of vision, which enhances the objectivity and accuracy of the results compared with traditional manual judgment.

[0046] Based on the same inventive concept, the embodiment of the present application also provides an electronic vision detection method. The implementation solution provided by the method is similar to the implementation solution recorded in the above system, so the specific limitations in one or more method embodiments provided below can refer to the above limitations on the system, which will not be repeated here. The electronic vision detection method includes the following steps 100-400.

[0047] Step 100, using the priority gaze method, generates electronic sight marks for different levels of human vision according to a preset test distance; the electronic sight marks are composed of black stripes and white stripes set on a background with uniform grayscale.

[0048] Step 200, retrieve the corresponding electronic sight mark according to the collected vision detection instruction.

[0049] Step 300, displaying the electronic sight mark to the person being tested.

[0050] Step 400, collecting the eye gaze information of the person being tested and obtaining the vision detection instruction; determining the eye vision level of the person based on the eye gaze information and the vision detection instruction.

[0051] Based on the same inventive concept, the embodiment of the present application also provides an electronic vision detection device. The implementation solution provided by the device to solve the problem is similar to the implementation solution recorded in the above method / system, so the specific limitations in one or more device embodiments provided below can refer to the limitations of the method / system above, and will not be repeated here.

[0052] The electronic vision detection device of the present application includes a detection end; the detection end includes a memory and a processor, the memory stores a computer program, and the processor implements the steps of the above-mentioned electronic vision detection method when executing the computer program; Figure 6 As shown, the detection end 11 is connected to the detection display screen 12, the display display screen 13 and the eye tracker 14 respectively.

[0053] The detection display screen 12 is used to: complete the interaction with the detection personnel, receive the input information of the detection personnel, and generate the vision detection instruction; transmit the vision detection instruction to the detection terminal 11, and the detection terminal 11 selects the required electronic sight mark; and display the human eye gaze information received by the detection terminal 11 to the detection personnel in real time, so as to facilitate real-time and accurate judgment. That is, the detection display screen 12 is the interface for the test personnel to operate and judge the test results. Figure 6 As shown, the detection display screen 12 displays the human eye gaze information in the detection personnel control terminal interface and the eye tracking module respectively.

[0054] The display screen 13 is used to display the electronic sight mark generated in the detection terminal 11 to the person being tested, that is, the display screen is the interface actually observed by the person being tested.

[0055] The eye tracker 14 is set at the eye of the person under test, and is used to detect the eye gaze information of the person under test and transmit it to the detection terminal 11 to realize the feedback of the eye gaze information of the person under test. Since whether the person under test can see the sight mark is determined by judging the direction of his eye gaze, the eye tracker is designed in this application to collect the gaze information, which can accurately and real-timely observe the eye movement of the subject, and at the same time does not affect the subject's viewing of the sight mark, and will not affect the test process.

[0056] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0057] This article uses specific examples to illustrate the principles and implementation methods of this application. The description of the above embodiments is only used to help understand the method and core ideas of this application. At the same time, for those skilled in the art, according to the ideas of this application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting this application.

Claims

1. An electronic vision detection system, characterized in that: The electronic vision detection system includes a data generation module, a human-computer interaction module, a display module and an eye tracking module; The data generation module is used to: use the priority gaze method to generate electronic sight marks of different human vision levels according to the preset test distance; the electronic sight marks are composed of black stripes and white stripes set on a background with uniform grayscale; The human-computer interaction module is used to: retrieve the corresponding electronic sight mark from the data generation module according to the collected vision detection instruction; The display module is used to: display the electronic sight mark to the person being tested; The eye tracking module is used to: collect the eye gaze information of the person being tested and obtain the vision detection instruction; and determine the person's vision level based on the eye gaze information and the vision detection instruction.

2. The electronic vision detection system according to claim 1, characterized in that: The vision detection instruction in the human-computer interaction module is determined by the test distance information, vision level information, sight mark pattern information and orientation information collected in sequence.

3. The electronic vision detection system according to claim 1, characterized in that: The data generation module includes a parameter setting unit, a vision calculation unit and a grayscale matrix generation unit; The parameter setting unit is used to: select any preset test distance; obtain the pixel resolution and pixel pitch of the display module; and call the corresponding number of pixel columns, preset contrast and preset average grayscale according to the preset test distance; Generating a grayscale image according to the preset contrast and the preset average grayscale; Performing a two-dimensional Fourier transform on the grayscale image to obtain a spectrum diagram; Extracting features from the frequency spectrum to generate a one-dimensional frequency distribution curve; The vision calculation unit is connected to the parameter setting unit, and the vision calculation unit is used to: calculate the logarithmic vision value according to the pixel pitch, the number of pixel columns corresponding to the preset test distance, and the preset test distance; different logarithmic vision values ​​correspond to different human vision levels; The grayscale matrix generation unit is connected to the parameter setting unit, and the grayscale matrix generation unit is used to: obtain a preset sight mark pattern; An electronic sight mark is generated based on the preset sight mark pattern, the pixel resolution, the pixel pitch and the one-dimensional frequency distribution curve.

4. The electronic vision detection system according to claim 3, characterized in that: In the vision calculation unit, the step of calculating the logarithmic vision value includes: The line width is calculated based on the number of pixel columns corresponding to the preset test distance and the pixel pitch; the current human eye limit resolution angle is calculated based on the line width and the preset test distance; and the current human eye limit resolution angle is converted into a corresponding logarithmic vision value.

5. The electronic vision detection system according to claim 4, characterized in that: The following formula is used to calculate the current human eye limit resolution angle: ； in, It is the height of the resolvable sight mark, and also refers to the line width; To preset the test distance, is the current limiting resolution angle of the human eye; use To express decimal visual acuity, use Expressing the logarithmic visual acuity value, the following formula can be obtained: ； in, L is the logarithmic visual acuity value, n is the number of pixel columns, is the pixel pitch.

6. The electronic vision detection system according to claim 3, characterized in that: In the grayscale matrix generating unit, the step of generating an electronic sight mark comprises: Based on the preset sight mark pattern, piecewise function analysis is performed according to the pixel resolution and the pixel pitch to determine the preset sight mark pattern data model; grayscale assignment is performed on the preset sight mark pattern data model based on the one-dimensional frequency distribution curve to obtain an electronic sight mark.

7. The electronic vision detection system according to claim 2, characterized in that: The eye tracking module is also used to: display the human eye gaze information to the detection personnel via the human-computer interaction module; In the eye tracking module, determining the vision level of the human eye according to the human eye gaze information and the vision detection instruction includes: Determining whether the eye gaze direction in the eye gaze information is consistent with the direction information; If the eye gaze direction in the eye gaze information is consistent with the direction information, the eye vision level corresponding to the electronic sight mark is recorded, and a next vision detection instruction generation prompt is generated, which is displayed to the detection personnel via the human-computer interaction module; If the eye gaze direction in the eye gaze information is inconsistent with the direction information, the number of inconsistencies is recorded plus one, and the eye vision level corresponding to the electronic sight mark is recorded. Then, when the number of inconsistencies reaches a preset condition, the final eye vision level of the person being measured is determined based on all the recorded eye vision levels.

8. An electronic vision detection method, characterized in that: The electronic vision detection method comprises: The preferred fixation method is used to generate electronic sight marks of different human vision levels according to the preset test distance; the electronic sight marks are composed of black stripes and white stripes set on a background with uniform grayscale; According to the collected vision test instructions, the corresponding electronic sight mark is retrieved; Displaying the electronic sight mark to the person being tested; Collect the eye gaze information of the person being tested and obtain the vision detection instruction; determine the person's vision level based on the eye gaze information and the vision detection instruction.

9. An electronic vision detection device, characterized in that: The electronic vision detection device comprises a detection end; the detection end comprises a memory and a processor, the memory stores a computer program, and the processor implements the steps of the electronic vision detection method described in claim 8 when executing the computer program; The detection end is respectively connected to the detection display screen, the display display screen and the eye tracker; The detection display screen is used to: complete the interaction with the detection personnel, receive the input information of the detection personnel, and generate the vision detection instruction; transmit the vision detection instruction to the detection end; The display screen is used to: display the electronic sight mark generated in the detection terminal to the person being tested; The eye tracker is arranged at the eyes of the person being measured, and is used to detect the eye gaze information of the person being measured and transmit the information to the detection end.

10. The electronic vision detection device according to claim 9, characterized in that: The detection display screen is also used to: display the human eye gaze information received by the detection end to the detection personnel in real time.

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