Visual function inspection device based on eye movement tracking, medium and computer equipment

Abstract

The invention relates to the technical field of visual function diagnosis, and provides a visual function examination device based on eye movement tracking, a medium and computer equipment, the device comprises a data acquisition unit, an eye movement evaluation unit, a visual field evaluation unit and a comprehensive analysis unit, the data acquisition unit is used for acquiring visual function data of an examinee, and the comprehensive analysis unit is used for analyzing the visual function data of the examinee; the eye movement evaluation unit evaluates an eye movement function based on eye movement parameters in the visual function data; the visual field evaluation unit evaluates a visual field function based on visual field parameters in the visual function data; according to the application, objective sight drop points are used for replacing subjective keys, false negative and false positive are reduced, before typical defects do not appear in the visual field, early visual function changes can be prompted through eye movement parameter abnormity, auxiliary screening of early glaucoma and other diseases is achieved, and the visual function detection accuracy is improved. Meanwhile, the diagnosis accuracy is improved through double evidences of eye movement and visual field in the middle and late stages, and the sensitivity and specificity of visual function examination are remarkably improved on the whole.

Description

Technical Field

[0001] This invention relates to the field of visual function diagnostic technology, and more specifically, to visual function testing devices, media, and computer equipment based on eye-tracking. Background Technology

[0002] Glaucoma is one of the leading causes of blindness worldwide, leading to progressive and irreversible visual field loss, which restricts patients' mobility. Currently, the main examinations used for glaucoma screening include slit-lamp microscopy, intraocular pressure measurement, visual field testing, and optical coherence tomography (OCT) of the fundus.

[0003] Visual field testing involves using a programmed, brightness-adjustable stimulus cursor to stimulate the subject's eye. The brightness level at which the subject perceives the stimulus cursor as just disappearing or appearing is then measured and used as the subject's light sensitivity threshold at that location. By examining the light sensitivity thresholds at all specific points within a specific visual field (e.g., within a central 30° field of view), the extent of visual field defects (areas with abnormally low light sensitivity thresholds within the visual field) in the tested eye is evaluated, thereby assessing the patient's visual function.

[0004] Visual field testing is highly effective in diagnosing mid-to-late stage glaucoma, but early-stage glaucoma often doesn't show visual field defects. This is because damage to the optic nerve structure in glaucoma precedes functional damage; detectable visual field defects, known as the floor effect, only appear when more than 40% of typical glaucoma structures, such as the optic disc / recurrent nerve fiber (RNFL), are damaged. For early-stage RNFL defects, localized visual field defects can currently be screened and identified using OCT (Optical Characteristic Transmission Tomography).

[0005] Current perimeter examinations rely on the subjective feedback of the examinee. The main examination process is as follows: the examinee needs to keep looking at a fixed target for a long time and manually press the responder the moment the stimulus cursor is perceived. This subjective response mode not only has high operational requirements, but also makes it difficult to objectively evaluate the accuracy of the results. Moreover, for people with limited cooperation ability, such as the elderly, children and some disabled people with mobility difficulties, traditional perimeter examinations are difficult to implement effectively. Current perimeters have the following problems: (1) insufficient ability to detect early visual field defects; (2) reliance on the examinee's subjective response in visual field testing, lacking more objective and accurate confirmation methods; (3) problems such as complex structure, bulky size, insufficient portability, and high cost limit their widespread application in primary healthcare institutions.

[0006] However, fundus OCT examinations are highly specialized and expensive, making them unsuitable for long-term patient follow-up and limiting their widespread adoption in primary care hospitals. Therefore, developing rapid, convenient, versatile, and cost-effective glaucoma screening devices for early screening and diagnosis is crucial for public health and holds significant social and market value. Summary of the Invention

[0007] In view of the shortcomings of the existing technology, the purpose of this invention is to provide an eye-tracking-based visual function testing device and computer equipment to overcome the deficiencies of existing visual function testing methods.

[0008] The above-mentioned technical objective of the present invention is achieved through the following technical solution: Firstly, a visual function testing method based on eye tracking is applied to a visual function testing device, the visual function testing device comprising: a visual stimulation display and an eye tracker; the method comprising: Based on a predetermined threshold strategy, a visual stimulation display is used to generate light stimulation points in a predetermined area, and an eye tracker is used to track the subject's eye movements to generate the subject's visual function data. The eye movement function of the subjects is analyzed and evaluated based on the eye movement tracking parameters in the visual function data to obtain the eye movement function evaluation results. The visual field function of the subject is analyzed and evaluated based on the visual field detection parameters in the visual function data to obtain the visual field detection evaluation results. Based on the eye movement function assessment results and visual field test assessment results, the examinee is comprehensively evaluated to generate the examinee's visual function test analysis results, which are specifically: normal visual function or abnormal visual function.

[0009] Secondly, an eye-tracking-based visual function testing device is applied to a visual function testing equipment, wherein the visual function testing equipment includes: a visual stimulation display and an eye tracker; the device includes: The data acquisition unit is used to generate light stimulation points in a predetermined area using a visual stimulation display based on a predetermined threshold strategy, and to track the eye movements of the subject using an eye tracker to generate the subject's visual function data. The eye movement assessment unit is used to analyze and assess the subject's eye movement function based on eye movement tracking parameters in visual function data, and to obtain eye movement function assessment results. The visual field assessment unit is used to analyze and assess the visual field function of the subject based on the visual field detection parameters in the visual function data, and to obtain the visual field detection assessment results. The comprehensive analysis unit is used to comprehensively evaluate the subject based on the eye movement function assessment results and visual field detection assessment results, and generate the subject's visual function detection analysis results, which are specifically: normal visual function or abnormal visual function.

[0010] Thirdly, a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the method described in the first aspect.

[0011] Fourthly, a computer device includes a memory and a processor, the memory storing a computer program, the processor executing the computer program to implement the steps of the method described in the first aspect.

[0012] In summary, the present invention has the following beneficial effects: by using the eye-tracking-based visual function testing device of the present invention, the subjective button response is replaced by the objective eye gaze point, thus reducing false negatives and false positives; multi-dimensional eye movement parameters such as reaction time, eye gaze point error, and speed are extracted simultaneously, and combined with an age-stratified database of healthy individuals, the visual function is assessed and early glaucoma screening is assisted; thus effectively improving the objectivity of visual function testing. Attached Figure Description

[0013] Figure 1 This is a flowchart of the visual function examination method based on eye tracking according to the present invention; Figure 2 This is a structural diagram of the visual function testing device based on eye tracking in an embodiment of the present invention; Figure 3 This is an internal structural diagram of the computer device in an embodiment of the present invention; Figure 4 This is an example diagram of a partial stimulation dot matrix procedure in Embodiment 1 of the present invention; Figure 5 This is a schematic diagram of the line-of-sight movement path in Embodiment 1 of the present invention; Figure 6 This is a schematic diagram of the field-of-view sensitivity threshold distribution in Embodiment 1 of the present invention; Figure 7 This is a schematic diagram of the open visual function detection device in Embodiment 5 of the present invention; Figure 8 This is a schematic diagram of the VR head-mounted visual function testing device in Embodiment 5 of the present invention; Figure 9 This is a schematic diagram of the integrated visual function detection device in Embodiment 5 of the present invention.

[0014] In the diagram: 1. Data acquisition unit; 2. Eye movement assessment unit; 3. Visual field assessment unit; 4. Comprehensive analysis unit; 11. Planar stimulation screen; 12. Fixation center; 13. Eye tracker; 14. Vision correction lens; 15. Chin rest; 16. Forehead rest; 17. Horizontal slide bar; 18. Support frame; 21. Planar stimulation screen; 22. Eye tracker; 23. Fixation center; 24. Vision correction lens; 25. Eye tracker main unit; 26. Opaque lens; 27. Headband; 31. Planar stimulation screen; 32. Forehead rest; 33. Fixation center; 34. Vision correction lens; 35. Chin rest; 36. Eye tracker; 37. Examination window; 38. Integrated visual function testing device main unit; 39. Forehead or chin rest movement control button; 40. Inspector's touch screen computer. Detailed Implementation

[0015] To make the objectives, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Several embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein.

[0016] In this application embodiment, "at least one" refers to one or more, and "more than one" refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent the existence of A alone, the simultaneous existence of A and B, or the existence of B alone. A and B can be singular or plural. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "At least one of the following" and similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, and c can represent: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple.

[0017] Those skilled in the art will recognize that the units and algorithm steps described in the embodiments disclosed herein can be implemented using electronic hardware, computer software, or a combination of electronic hardware and software. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0018] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0019] In the several embodiments provided in this application, any function, if implemented as a software functional unit and sold or used as an independent product, can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0020] The above description is merely a specific embodiment of this application. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the protection scope of this application. The protection scope of this application should be determined by the protection scope of the claims.

[0021] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0022] Example 1 To address the problems existing in the prior art, this invention provides a visual function examination method based on eye tracking. To facilitate understanding of the technical solution of this application, the visual function examination equipment is first described. The principle of the eye tracker is to use an infrared light source to illuminate the eyeball, and a high-speed camera to acquire images of the pupil and corneal reflection point. Then, an algorithm calculates the relative positional change between the pupil center and the corneal reflection point, thereby tracking information such as the eye's gaze direction, gaze point position, and eye movement trajectory in real time. Further calculations are then performed to obtain parameters such as reaction time and landing point error. Figure 4 As shown, the visual stimulation display is mainly used to display light stimulation points of different brightness at specific locations, and the brightness of the light stimulation points can be adjusted according to actual needs. In addition, the visual function testing equipment also includes: an operator's workbench, which serves as the carrier for the testing and statistical analysis software (with a control computer and monitor), and can monitor and display the eye position information, eye tracking information, and visual field testing information of the tested eye in real time; a threshold detection program, which controls the position, brightness, and duration of the stimulation point through selectable threshold detection strategies and combines eye tracking to determine whether the tested eye can clearly see the target, outputs the light sensitivity threshold of a certain point of the tested eye, statistically analyzes and outputs a visual field testing report; and eye tracking software is used for recording and analyzing eye movement information, statistically analyzing the obtained eye movement information, and outputting an eye tracking report.

[0023] Secondly, the basic theory of this technical solution is explained: Eye movement refers to a series of spontaneous, controlled, and purposeful movements of the eyeball, including any voluntary or involuntary movement, such as fixation, saccades, and smooth tracking. Glaucoma, as a degenerative disease of the optic nerve, is mainly characterized by the loss of ganglion cells and thinning of the nerve fiber layer in terms of structure. Damage to the optic nerve leads to a delay in the processing of motion information such as eye movements, resulting in eye movement performance that differs from that of healthy individuals of the same age. In the early stages of glaucoma, there is often no obvious visual field defect, but some early abnormalities can already be observed: such as local thinning of the optic nerve fiber layer (RNFL) and a reduction in the number of ganglion cells, leading to a decrease in the efficiency of visual information transmission; in terms of functional performance, patients exhibit abnormal eye movement parameters, such as prolonged reaction time, increased fixation point error, and decreased eye movement speed. The principle is that glaucoma is a degenerative disease of the optic nerve. In the early stages, damage to nerve fibers and ganglion cells delays the transmission and integration of visual signals from the retina to the cerebral cortex, thereby causing changes in eye movement behavior. Even if the visual field test results are still within the normal range, these hidden early functional abnormalities can be detected by eye tracking.

[0024] Based on the above theoretical foundation, this application proposes a visual function testing method based on eye tracking, applied to a visual function testing device, which includes: a visual stimulation display and an eye tracker; as shown... Figure 1 As shown, the visual function testing methods include: S1. Based on a predetermined threshold strategy, a visual stimulation display is used to generate light stimulation points in a predetermined area, and an eye tracker is used to track the subject's eye movements to generate the subject's visual function data. Step S1 is used to present light stimulation points in a predetermined area through a visual stimulation display under the control of a predetermined threshold detection strategy, and the eye tracker records the subject's gaze trajectory, reaction time, landing position and other information for each stimulation point in real time, thereby forming visual function data that simultaneously contains eye movement information and visual field brightness response information.

[0025] S2. Based on the eye-tracking parameters in the visual function data, analyze and evaluate the subject's eye movement function to obtain the eye movement function evaluation result; Step S2, based on the eye-tracking parameters in the visual function data, quantitatively analyzes the subject's eye movement speed, accuracy, stability, etc., to obtain the eye movement function evaluation result of whether there is an eye movement function abnormality and its degree.

[0026] S3. Based on the visual field detection parameters in the visual function data, the visual field function of the subject is analyzed and evaluated to obtain the visual field detection evaluation result. Step S3 then extracts the light sensitivity threshold and other visual field detection parameters of each stimulus site from the same visual function data and compares them with an age-matched normal database to form a visual field detection evaluation result that reflects whether the visual field is defective and the extent of the defect. In this step, the subject does not need to actively press the button to provide feedback. The detection can be carried out based on the subject's eye physiological activity, providing objective eye movement data for subsequent analysis and avoiding reliance on the subject's subjective button feedback.

[0027] S4. Based on the eye movement function assessment results and visual field detection assessment results, a comprehensive assessment of the examinee is conducted to generate the examinee's visual function detection analysis results. The visual function detection analysis results are specifically: normal visual function or abnormal visual function. Step S4 conducts a comprehensive analysis of the examinee based on the above two dimensions. When both the eye movement function assessment results and the visual field detection assessment results are normal, the visual function is determined to be normal. When one or both are abnormal, the visual function is determined to be abnormal, thus giving a comprehensive visual function detection conclusion that integrates eye movement behavior and visual field threshold information.

[0028] Through the synergy of the above steps, this invention does not rely solely on traditional visual field threshold results, but rather analyzes objective eye movement parameters in conjunction with visual field detection results: on the one hand, eye tracking replaces subjective button feedback, improving the objectivity and reliability of light stimulus response judgment and reducing false negatives and false positives in visual field examination; on the other hand, before typical visual field defects appear, abnormal eye movement parameters can indicate early functional changes, enabling auxiliary screening for diseases such as early glaucoma. At the same time, in the middle and late stages, the dual evidence of eye movement and visual field improves diagnostic accuracy, significantly enhancing the sensitivity and specificity of visual function examinations overall.

[0029] In one embodiment, when the visual function detection and analysis result is visual function abnormality, the degree of visual function impairment is graded or scored, wherein the degree grading includes: suspected abnormality, mild impairment, moderate impairment and severe impairment, and guidance on medical treatment or suspected symptoms are given when necessary.

[0030] Specifically, when the visual function test results output by the comprehensive analysis unit indicate visual function abnormality, the system does not simply provide a binary conclusion of abnormal or normal. Instead, it further grades or quantifies the degree of visual function impairment. Specifically, the visual function status is refined into multiple levels, such as suspected abnormality, mild impairment, moderate impairment, and severe impairment. Suspected abnormality is used to mark borderline states with only slight deviations in eye movements or visual field indicators, insufficient for a definitive diagnosis. Mild, moderate, and severe impairments correspond to different stages of visual function progression, from early focal abnormalities to widespread and significant defects. Based on this, the system can also generate corresponding guidance for medical treatment or suggestive symptoms based on the grading results, such as recommending regular follow-up, further OCT examinations, or prompt referral to a specialist. By overlaying a grading or scoring mechanism on top of the abnormality assessment, the originally singular screening result is transformed into a multi-level output reflecting the degree of disease progression and urgency. This facilitates doctors in developing differentiated follow-up and treatment strategies based on different risk levels and also enables stratified patient management and rational resource allocation in large-scale screening scenarios, thereby improving the clinical guidance value of visual function test results and the timeliness of early intervention.

[0031] Visual field testing, as a form of "sampling examination," typically selects a certain number of points in a limited area as the "sample" for visual field testing. Based on the location and morphology of common visual field defects in different diseases, a series of "stimulus point arrays" are designed or selected as different examination procedures. For example... Figure 4 The image shown is a partial example of a stimulus dot matrix plot. In practical applications, examples include, but are not limited to, those listed. Figure 4 (a) The detection field of view is 0° to 30°, covering 54 sites; Figure 4 (b) is in Figure 4 Based on (a), from Figure 4 (e) Select 10 representative sites from the matrix and add them to the matrix. Figure 4 (a) Within a 10° range in the center of the dot matrix, the detection field of view is 0°~30°, with 64 sites; Figure 4 (c) The detection field of view is 0°~30°, covering 76 sites; Figure 4 (d) The detection field of view is 30°~60°, covering 60 sites; Figure 4 (e) The detection field of view is 0° to 10°, covering 68 sites; Figure 4 (f) The detection field range is 0°~5°, with 16 sites.

[0032] In one embodiment, a visual stimulation display is used to generate a fixed viewpoint in a predetermined area. Before the light stimulation point is generated or after the light stimulation point disappears, the subject is assisted to continuously focus on the fixed viewpoint and keep their line of sight fixed.

[0033] Specifically, using a visual stimulation display to generate a fixed gazepoint in a predetermined area involves displaying a stable fixation marker, such as a small dot, cross, or bright spot, in the center of the display or at a preset position before the formal presentation of the light stimulus and / or after the disappearance of a round of light stimuli. This fixed gazepoint guides and assists the subject in continuously focusing on this position, thereby locking the subject's gaze at a uniform starting reference position during the testing process and maintaining minimal eye position deviation. This design, on the one hand, unifies the eye state to the same fixed eye position before each light stimulus presentation, avoiding inconsistencies in the initial eye position caused by the subject's free saccades or gaze drift, thus improving the spatial accuracy, precision, and repeatability of light sensitivity threshold measurement and eye movement parameter calculation. On the other hand, real-time monitoring of whether the subject is truly fixating on the fixed gazepoint using an eye tracker can also be used to screen and eliminate data with poor fixation and poor cooperation, reducing false positives and false negatives introduced by head movements, distracted gaze, etc., making subsequent visual field testing and eye movement assessment results more reliable and stable.

[0034] In one embodiment, the eye-tracking parameters include, but are not limited to: accuracy, reaction time, spatial error, landing point error, first-step saccade amplitude gain, average speed, maximum speed, multi-step saccade occurrence rate, blink rate, and average number of saccade steps. Among them, accuracy is used to characterize whether the subject's gaze accurately falls on the target stimulus point after the stimulus is presented, and is used to measure whether the stimulus was seen; reaction time is the time interval between the appearance of the stimulus point and the initiation of saccade, and is used to reflect the speed of visual information transmission and central response; spatial error is the degree to which the overall eye movement trajectory deviates from the target position, while landing point error focuses on the deviation of the final fixation point relative to the target point. Both reflect fixation accuracy and eye movement control ability; first-step saccade amplitude gain is the ratio of the amplitude of the first saccade to the amplitude required for the target, and is used to evaluate the efficiency of a single orientation saccade; average velocity and maximum velocity respectively reflect the overall velocity level and instantaneous peak velocity of the saccade process, and reflect the function of extraocular muscles and related neural pathways from a dynamic perspective; multi-step saccade incidence is characterized by the proportion of multiple small-amplitude saccades required to reach the same target, and is used to identify segmented compensatory eye movement patterns; blink rate reflects the level of alertness, fatigue, and eye discomfort in the detection task; and average number of saccade steps is the average number of saccades required to complete orientation between multiple stimulus points, and is used to comprehensively measure the simplicity of the eye movement path and the ability to plan the movement. By introducing the aforementioned multidimensional eye-tracking parameters, this application does not rely solely on a single indicator, but comprehensively characterizes eye movement function from multiple dimensions such as time, spatial accuracy, velocity characteristics, and motion patterns. On the one hand, it significantly improves the sensitivity to subtle functional abnormalities, which is beneficial for the early detection of latent functional changes caused by optic nerve damage such as glaucoma. On the other hand, it also enhances the robustness and interpretability of the results, providing richer and more objective data support for subsequent visual function grading and clinical decision-making.

[0035] In practical applications, the eye tracker uses an infrared light source and a camera to acquire images of the subject's eyes, identify the center of the pupil and the corneal reflector, and calculate the subject's gaze direction based on the relative positions of the pupil and the corneal reflector. As the subject performs eye movements, a series of gaze points are continuously sampled over time, forming a complete eye movement trajectory / path. In this embodiment, the sampling frequency is between 120Hz and 1000Hz. After the stimulus point appears, the system detects the final position of the subject's gaze, determined based on the duration of the gaze at a certain position. When the subject's gaze remains at a certain position (area) for more than a certain time threshold, it indicates that the subject's eye movement has been completed. At this point, the coordinates of the gaze point calculated by the eye tracker need to be recorded.

[0036] In one embodiment, the step of analyzing and evaluating the eye movement function of the examinee to obtain the eye movement function evaluation result includes: comparing and analyzing the eye movement tracking parameters of the examinee with the eye movement tracking parameters of healthy people of the corresponding age group, and comprehensively evaluating the eye movement function of the examinee.

[0037] Specifically, the eye movement function of the examinee is analyzed and evaluated. This includes: First, based on a large number of clinical controlled trials and / or public databases, a reference database of eye movement tracking parameters for healthy individuals is established according to age groups, so that each age group has a corresponding normal range. During the test, eye movement tracking parameters such as accuracy, reaction time, landing point error, and speed-related indicators are extracted from the examinee's visual function data. These parameters are then compared with the eye movement tracking parameters of healthy individuals in the corresponding age group. The degree of deviation between the examinee and the normal level of the same age can be quantified by using methods such as difference, ratio, and standard deviation. Finally, the eye movement function assessment result is given by combining the deviation of each parameter, such as judging the eye movement function as normal, slightly abnormal, moderately abnormal, or severely abnormal. By introducing an age-stratified health control database, the systematic bias caused by directly assessing the elderly and young people under the same standard is avoided. Each examinee is compared against their peers, thus more accurately reflecting their individual eye movement function status. At the same time, the use of multi-parameter joint comparison rather than single indicator judgment improves the sensitivity to minor functional abnormalities and reduces misjudgments caused by random fluctuations, significantly improving the accuracy and reliability of eye movement function assessment and providing a more robust foundation for subsequent visual function grading and early glaucoma screening.

[0038] In one embodiment, the step of analyzing and evaluating the visual field function of the subject to obtain visual field detection evaluation results includes: comparing the light sensitivity threshold of each light stimulation point of the subject with the standard light sensitivity threshold of the corresponding age group of healthy people to obtain the comparison results corresponding to each light stimulation point, and generating visual field detection evaluation results based on all comparison results.

[0039] Specifically, the analysis and evaluation of the visual field function of the examinee involves the following steps: First, based on a large amount of data from normal individuals, a database of standard photosensitivity thresholds for each detection site is established according to different age groups, ensuring that each light stimulation point has a corresponding standard threshold for each age group. During testing, the system obtains the actual photosensitivity threshold of the examinee at each light stimulation point through a threshold detection program. Then, this actual threshold is compared point by point with the standard photosensitivity threshold for the examinee's corresponding age group to determine whether each site is within the normal range or below the normal range, indicating a decrease in sensitivity. Based on this, by comprehensively statistically analyzing and spatially integrating the comparison results of all detection sites, it is possible to determine whether the examinee has visual field defects, and on the other hand, to determine the distribution range, severity, and whether the defect area presents a typical glaucoma-like defect morphology, thereby generating a structured visual field detection and evaluation result. By meticulously comparing point-by-point thresholds with age-stratified standards, this approach avoids systematic errors caused by simply using uniform normal values, making the assessment results more consistent with individual age characteristics. Simultaneously, by utilizing the spatial distribution information of each point across the entire visual field for comprehensive judgment, it can not only sensitively capture early focal visual field defects but also accurately characterize the extent and morphology of extensive defects in the middle and late stages. This approach provides higher resolution, more personalized, and quantitatively analyzable visual field function assessment results, offering a more reliable basis for subsequent visual function grading and clinical decision-making.

[0040] In one embodiment, the step of comprehensively evaluating the subject based on the eye movement function assessment results and the visual field test assessment results to generate the subject's visual function test analysis results specifically includes: when both the eye movement function assessment results and the visual field test assessment results are normal, the visual function test analysis results are determined to be visual function normal; otherwise, the visual function test analysis results are determined to be visual function abnormal.

[0041] Specifically, the comprehensive assessment of subjects is based on both eye-tracking function evaluation and visual field testing results. This means that the system first performs separate eye-tracking function analysis and visual field testing analysis, obtaining two relatively independent assessment conclusions. Then, in the comprehensive judgment stage, clear logical rules are used to integrate them. Visual function testing results are only judged as normal if both the eye-tracking function evaluation and visual field testing results are normal. If any dimension shows abnormality (including slight, moderate, or severe abnormalities), the overall visual function testing results are judged as abnormal. This design avoids the risk of a single indicator masking the problem: on the one hand, if typical visual field defects have not yet appeared, but early abnormalities in eye-tracking parameters have already occurred, the system can still mark the subject as having abnormal visual function, facilitating early screening and intervention; on the other hand, even if eye-tracking parameters are not currently significantly abnormal, the effective supplementation of visual field threshold testing, combined with the comprehensive assessment of both, further ensures that patients with mid-to-late-stage visual function impairment are not misdiagnosed or missed. Compared with traditional methods that rely solely on visual field or a single examination result, this comprehensive judgment mechanism cross-validates two types of complementary information. While being logically simple, clear, and easy to implement, it significantly improves the sensitivity and safety of visual function testing, reduces the risk of missed diagnoses and misjudgments, and provides a more robust and reliable final screening conclusion for clinical practice.

[0042] In one embodiment, the threshold strategy is an examination strategy that quantifies and determines the photosensitivity threshold of each test site by evaluating the brightness of the stimulus.

[0043] Specifically, the threshold strategy refers to a specific examination strategy that, at each test location, instead of simply providing a light stimulus of fixed brightness, systematically adjusts and evaluates the changes in stimulus brightness to quantify and determine the photosensitivity threshold at that location. This includes determining the initial brightness, setting the brightness increment / decrement step size, controlling the stimulus presentation time and repetition count, etc., so that the system can gradually approach the critical brightness value that is just barely visible based on the subject's response to different brightness stimuli. This critical brightness is then recorded as the photosensitivity threshold for that test site. By introducing such a threshold strategy, on the one hand, the subject's subjective perception of light stimulation is transformed into quantifiable brightness parameters and threshold data; on the other hand, different strategies such as full threshold detection and rapid threshold detection can be selected according to different clinical needs, ensuring threshold accuracy while considering detection time and subject comfort.

[0044] In one embodiment, the threshold strategy may employ a fast threshold strategy and / or a full threshold strategy.

[0045] The full threshold strategy includes the following steps: First, a high-brightness stimulus point is presented in the physiological blind spot area of ​​the tested eye. Through multiple stimulations, it is confirmed that this area is invisible at all brightness levels, completing the threshold detection of the physiological blind spot and spatial calibration of the eye-tracking system. A horizontal and vertical coordinate axis is established with the fixation point as the center, dividing the detection field of view into four quadrants. Within each quadrant, a detection point approximately 12.7° away from the fixation point is selected as the reference point for that quadrant. For each reference point, the initial brightness is corrected based on the age of healthy individuals of the same age. The first stimulus point is presented with a brightness increase of 6dB from the initial brightness. At the reference point or the test point, the stimulus brightness is gradually reduced in increments of 4dB. The subject maintains fixation on the fixation point at each brightness level and responds to the stimulus. The eye movement response is elicited; when the brightness is reduced to a certain level, the subject no longer exhibits a valid fixation response, indicating that the stimulus below that brightness is invisible, thus completing the first crossing of the threshold. Starting from the brightness level at which the subject can no longer see the stimulus, the brightness is gradually increased in increments of 2dB until the subject exhibits a valid fixation response again, indicating that the stimulus is now just visible. The brightness value corresponding to the first time the stimulus is seen again is recorded as the photosensitivity threshold for that detection site, thus completing two crossings of the threshold. For non-reference points, the initial brightness is set with reference to the threshold setting of the reference point in the corresponding quadrant, and the above process of increasing brightness by 6dB → decreasing by 4dB → increasing by 2dB is repeated, sequentially measuring the photosensitivity threshold for each point within the entire detection field of view, forming a complete threshold array. Figure 5 As shown, the subject was asked to fixate on the central fixation point, look at the stimulus point when it appeared, and return to the central fixation point when the stimulus point disappeared.

[0046] The rapid thresholding strategy includes the following steps: Combining data from healthy individuals of the same age and the preset parameters of the detection program, set an appropriate initial stimulus brightness for the test site, ensuring the initial brightness is higher than the expected threshold level so that the subject can see the stimulus point at the beginning; at the corresponding test site, gradually reduce the stimulus brightness in 3dB increments, and at each level, use eye tracking to determine whether the subject makes an effective fixation response to the stimulus point; when the brightness decreases to a certain level, and the subject no longer makes an effective fixation response, it is considered that the brightness has fallen below the light sensitivity threshold of that site, thus completing one threshold crossing; the brightness of the light stimulus that the subject can still see during the last decrease is directly recorded as the light sensitivity threshold of that test site, without the need for reverse increment confirmation; using the above 3dB single-step decreasing method, each test site within the visual field is tested sequentially to quickly obtain the threshold for each point. This approach is suitable for applications where testing time is sensitive, such as physical examinations, primary care screenings, or when subject cooperation is limited.

[0047] In one embodiment, a specific method for detecting visual field defects is also provided, such as... Figure 6As shown, the location of the physiological blind spot first needs to be determined based on the subject's physiological structure. The physiological blind spot corresponds to the optic nerve head (a region without photoreceptor cells), located on the temporal side of the retina (approximately 15° horizontally and 1.5° vertically from the fixation point). When light stimulation is presented in this area, a normal eye will not be able to see it; therefore, it can serve as a fixed point for system calibration and subject cooperation testing. To improve accuracy, multiple stimulation points can be set around the blind spot, and the area that cannot be seen can be confirmed point by point. The outline of the blind spot area is then drawn, and a high-brightness stimulation point is randomly presented at the blind spot location, while the subject keeps their gaze fixed on the fixation point. By confirming the range of the blind spot, the accuracy of the fixation point calculated by the eye tracker can be further corrected. Only after confirming the blind spot can the subsequent benchmark threshold detection be reliable.

[0048] After confirming the physiological blind spot area, two mutually perpendicular coordinate axes are generated based on a fixed viewpoint, dividing all detection areas into four quadrants. A point approximately 12.7° from the fixed viewpoint is selected in each quadrant as a reference point. Individuals of different ages, refractive errors, and neurological function states exhibit significant differences in their light sensitivity thresholds. If all sites are tested uniformly starting from the highest brightness, it would be time-consuming and tiring. Therefore, a reference point approximately 12.7° from the fixed viewpoint is selected in each of the four quadrants, and the threshold is measured as the individual light sensitivity reference value for that subject. First, the subject's brightness value is tested at the four reference points. In this embodiment, a full threshold strategy is used for the testing of the four reference points, which ensures the accuracy of the reference point detection.

[0049] After determining the detection results of each reference point, the detection method described above is re-executed within each quadrant, using the detection results of the corresponding reference point as the initial brightness, to obtain the detection results corresponding to each detection point in the four quadrants. The final generated detection result is an array formed by the light sensitivity thresholds corresponding to each detection point. In this embodiment, the detection points outside the reference points can be detected using a fast thresholding strategy to improve detection efficiency. In some embodiments, a full thresholding detection method can also be used.

[0050] In summary, this embodiment proposes a visual function examination method based on eye tracking. By objectively replacing subjective button responses with the gaze point, it reduces false negatives and false positives. Simultaneously, it extracts multi-dimensional eye movement parameters such as reaction time, gaze point error, and velocity, and combines them with an age-stratified normal database to achieve quantitative assessment of visual function and auxiliary screening for early glaucoma. This effectively improves the objectivity of visual function testing.

[0051] Example 2 Please see Figure 2An eye-tracking-based visual function testing device is used in visual function testing equipment, which includes: a visual stimulation display and an eye tracker; the device includes: Data acquisition unit 1 is used to generate light stimulation points in a predetermined area using a visual stimulation display based on a predetermined threshold strategy, and to track the eye movement of the subject using an eye tracker to generate visual function data of the subject. Eye movement assessment unit 2 is used to analyze and assess the subject's eye movement function based on eye movement tracking parameters in visual function data, and obtain eye movement function assessment results; Visual field assessment unit 3 is used to analyze and assess the visual field function of the subject based on the visual field detection parameters in the visual function data, and obtain the visual field detection assessment results; The comprehensive analysis unit 4 is used to comprehensively evaluate the subject based on the eye movement function assessment results and visual field detection assessment results, and generate the subject's visual function detection analysis results, which are specifically: normal visual function or abnormal visual function.

[0052] Specific limitations regarding the eye-tracking-based visual function testing device can be found in the limitations of the eye-tracking-based visual function testing method described above, and will not be repeated here. Each module in the aforementioned eye-tracking-based visual function testing device can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in or independent of the processor in a computer device, or stored in the memory of a computer device as software, so that the processor can call and execute the corresponding operations of each module.

[0053] Those skilled in the art will understand that Figure 2 The structure shown in the figure is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the present application. The specific eye-tracking-based visual function testing device may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0054] Example 3 A computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the eye-tracking-based visual function examination method as described in Example 1.

[0055] Example 4 In one embodiment, a computer device is provided, which may be a server, and its internal structure diagram may be as follows: Figure 3As shown, the computer device includes a processor, memory, network interface, and database connected via a system bus. The processor provides computational and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system, computer programs, and database. The internal memory provides an environment for the operation of the operating system and computer programs stored in the non-volatile storage media. When the computer program is executed by the processor, it implements a visual function examination method based on eye tracking.

[0056] Those skilled in the art will understand that Figure 3 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer device to which the present application is applied. Specific computer devices may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0057] In one embodiment, a computer device is provided, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to perform the following steps: including: S1. Based on a predetermined threshold strategy, a visual stimulation display is used to generate light stimulation points in a predetermined area, and an eye tracker is used to track the subject's eye movements to generate the subject's visual function data. S2. Based on the eye-tracking parameters in the visual function data, the eye movement function of the examinee is analyzed and evaluated to obtain the eye movement function evaluation results. S3. Based on the visual field detection parameters in the visual function data, analyze and evaluate the visual field function of the subject to obtain the visual field detection evaluation results. S4. Based on the eye movement function assessment results and visual field test assessment results, a comprehensive assessment of the examinee is conducted to generate the examinee's visual function test analysis results, specifically: normal visual function or abnormal visual function.

[0058] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. Any references to memory, storage, databases, or other media used in the embodiments provided in this application can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), dual data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), Rambus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM), etc.

[0059] Example 5 Furthermore, this embodiment provides a method for grading the degree of visual function impairment progression, the specific steps of which are as follows: First, a basic database of visual function is established. Raw visual function data of normal and visually impaired populations are obtained through clinical controlled trials and open databases. By analyzing, comparing and statistically analyzing the data and classifying them by age group, the characteristics of visual function data of normal and visually impaired populations are extracted to establish a basic database and obtain parameters such as the average normal threshold (i.e., the minimum standard normal value) to distinguish between the two populations.

[0060] Secondly, visual function test data is obtained: visual stimulation display and eye tracker are used to collect visual field light sensitivity threshold and eye movement related parameters; Then, the detected visual function data is compared and analyzed with the baseline database to obtain the comparative difference values. The detected visual field light sensitivity threshold is compared with the baseline normal values ​​to obtain the difference values ​​between the threshold detection values ​​and healthy values ​​for all locations (the presence of a difference indicates an abnormality); the detected eye movement data is compared with the baseline normal values ​​to obtain the difference between each detection parameter and the normal healthy value. Finally, the degree of visual impairment was determined based on the difference analysis. The statistical analysis results showed that the visual impairment was classified from mild to severe as follows: normal visual function, suspected visual impairment, mild visual impairment, moderate visual impairment, and severe visual impairment.

[0061] The procedure for grading visual impairment is as follows: If neither visual field nor eye movement shows any abnormalities, visual function is considered normal. When there are no abnormalities in the visual field but the eye movements show slight abnormalities, it is judged as a suspected visual function abnormality; When both visual field and eye movement show slight abnormalities and the abnormal areas correspond locally, it is judged as mild visual impairment. Both visual field and eye movement showed moderate abnormalities with clearly corresponding abnormal areas, which was determined to be moderate visual impairment. Both visual field and eye movement showed severe abnormalities, and the abnormal areas almost completely corresponded, indicating severe visual impairment. When visual field is abnormal but eye movement is normal, poor fixation stability or poor patient cooperation should be suspected, which may indicate poor test reliability.

[0062] When visual function is abnormal, further diagnosis related to optic nerve damage (such as OCT, fundus photography, etc.) should be performed based on the degree of damage.

[0063] Furthermore, this embodiment provides a first strategy for grading the degree of visual function impairment progression, as detailed in Table 1.

[0064] Table 1: First Strategies for Grading the Progression of Visual Functional Impairment

[0065] Furthermore, this embodiment provides a second strategy for grading the degree of visual function impairment progression, as detailed in Table 2.

[0066] Table 2: Second Strategies for Grading the Progression of Visual Function Impairment

[0067] Furthermore, this embodiment provides a third strategy for grading the degree of visual function impairment progression, as detailed in Table 3.

[0068] Table 3: The third strategy for grading the progression of visual impairment

[0069] Furthermore, this embodiment provides a fourth strategy for grading the degree of visual function impairment progression, as detailed in Table 4.

[0070] Table 4: The Fourth Strategy for Grading the Progression of Visual Function Impairment

[0071] Example 6 This embodiment further provides some devices and usage steps that can be used for visual function testing, such as... Figure 7 As shown, this is an open-type visual function testing device. Furthermore, this application provides a specific testing process based on this device, with the following specific steps: S11. Turn on the power to the inspector's workbench computer and the open visual function testing device, open the testing software, and confirm that the software and hardware are working properly.

[0072] S12. The examinee sits on the height-adjustable chair and adjusts its height to facilitate placing the chin on the chin rest. The position of the chin rest is adjusted up, down, left, and right. The eye tracker is used to ensure that the examined eye and the fixation point are on the same horizontal line. The forehead rest is moved up, down, left, and right to make it close to the forehead. The non-examined eye is covered with an eye patch. If necessary, the examined eye is fitted with vision correction lenses. Once the examinee is ready, the ambient brightness is adjusted, and the examinee begins the brightness adaptation process.

[0073] S13. Eye-tracking data testing: The central cursor on the stimulator is the fixation point, and stimulus points appear at random locations around it. The subject is required to quickly look at the stimulus point when it appears and quickly return to the fixation point when it disappears. The eye tracker calculates the overlap ratio between the gaze point and the stimulus point, as well as the time the gaze point stays at the stimulus point, to comprehensively determine whether the tested eye has seen the stimulus point. The duration of the visual target presentation is 200~2000ms.

[0074] S14. Visual field defect detection: The threshold of each stimulation site is obtained through a full threshold strategy, and the threshold obtained by the test is compared with the normal value to analyze the visual field defect.

[0075] S15. Simultaneously with visual field detection, eye tracking records parameters such as reaction time, landing point error, and average speed, which are then compared with normal values ​​to analyze abnormal eye movement conditions.

[0076] S16. Combining visual field and eye movement analysis results, a comprehensive analysis is conducted to provide visual function evaluation results or scores.

[0077] like Figure 8 As shown, this is a visual function testing device for a VR headset. Furthermore, this application provides a specific testing process based on this device. S21. Turn on the power to the computer on the inspector's workbench and the power to the VR head-mounted display visual function testing device, open the testing software, and confirm that the software and hardware are working properly.

[0078] S22. Place the black light-blocking sheet (for the non-test eye) and vision correction lenses (if needed) into the slot on the side of the main unit of the visual function testing device closest to the eye; the subject fixes the VR head-mounted visual function testing device to their head using the headband; the subject's eye position is detected using an eye tracker to ensure that the tested eye and the fixed gaze point of the planar stimulation screen are on the same straight line; once the subject is ready, adjust the background brightness of the planar stimulator, and the subject begins brightness adaptation.

[0079] S23. Eye-tracking data testing: The central cursor on the stimulator is the fixation point, and stimulus points appear at random locations around it. The subject is required to quickly look at the stimulus point when it appears and quickly return to the fixation point when it disappears. The eye tracker calculates the overlap ratio between the gaze point and the stimulus point, as well as the time the gaze point stays at the stimulus point, to comprehensively determine whether the tested eye has seen the stimulus point. The duration of the visual target presentation is 200~2000ms.

[0080] S24. Visual field defect detection: Sensitivity thresholds are measured at various points within the visual field. A full threshold strategy is used to obtain the thresholds for each stimulation site, and the obtained thresholds are compared with normal values ​​to analyze the degree of visual field defect.

[0081] S25. Simultaneously with visual field detection, eye tracking records parameters such as eye movement trajectory, reaction time, landing point error, and average speed, and then compares them with normal values ​​to analyze abnormal eye movement conditions.

[0082] S26. Combining visual field and eye movement analysis results, a comprehensive analysis is conducted to provide visual function evaluation results or scores.

[0083] like Figure 9 As shown, this is an integrated visual function testing device. Furthermore, this application provides a specific testing process based on this device. S31. Turn on the power to the inspector's workbench computer and the integrated or separate visual function testing device, open the testing software, and confirm that the software and hardware are working properly.

[0084] S32. The subject sits directly in front of the device, placing their chin on the chin rest and their forehead on the forehead rest. The height of the chin rest is adjusted, and the subject uses an eye tracker to ensure that their line of sight is aligned with the fixation point on the stimulation screen. The non-test eye is covered with an eye patch; if necessary, the tested eye is fitted with vision correction lenses. Once the subject is ready, the ambient brightness is adjusted, and the subject begins the brightness adaptation process.

[0085] S33. Pre-test: The central cursor on the stimulator is the fixation point, and stimulus points appear at random locations around it. The subject is required to quickly look at the stimulus point when it appears and quickly return to the fixation point when it disappears. The eye tracker calculates the overlap ratio between the gaze point and the stimulus point, as well as the time the gaze point stays at the stimulus point, to comprehensively determine whether the tested eye has seen the stimulus point. The duration of the visual target presentation is 200~2000ms.

[0086] S34. Formal visual field detection: Detect the sensitivity threshold at each point within the visual field. The threshold for each stimulation site is obtained using a full threshold strategy, and the tested thresholds are compared with normal values ​​to analyze the degree of visual field loss.

[0087] S35. Simultaneously with visual field detection, eye tracking records parameters such as eye movement trajectory (amplitude), reaction time, landing point error, and average speed, and then compares them with normal values ​​to analyze abnormal eye movement conditions.

[0088] S36. Combining visual field and eye movement analysis results, a comprehensive analysis is conducted to provide visual function evaluation results or scores.

[0089] The technical features of the above embodiments can be combined in any way. For the sake of brevity, 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.

[0090] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. An eye-tracking-based visual function testing device, applied to a visual function testing equipment, the visual function testing equipment comprising: A visual stimulation display and an eye tracker; characterized in that the device comprises: The data acquisition unit is used to generate light stimulation points in a predetermined area using a visual stimulation display based on a predetermined threshold strategy, and to track the eye movements of the subject using an eye tracker to generate the subject's visual function data. The eye movement assessment unit is used to analyze and assess the subject's eye movement function based on eye movement tracking parameters in visual function data, and to obtain eye movement function assessment results. The visual field assessment unit is used to analyze and assess the visual field function of the subject based on the visual field detection parameters in the visual function data, and to obtain the visual field detection assessment results. The comprehensive analysis unit is used to comprehensively evaluate the subject based on the eye movement function assessment results and visual field detection assessment results, and generate the subject's visual function detection analysis results, which are specifically: normal visual function or abnormal visual function.

2. The visual function testing device based on eye tracking according to claim 1, characterized in that, When the visual function test and analysis results indicate visual function abnormality, the degree of visual function impairment is graded or scored, and guidance on medical treatment or suspected symptoms are given. The degree grading includes: suspected abnormality, mild impairment, moderate impairment, and severe impairment.

3. The visual function testing device based on eye tracking according to claim 1, characterized in that, A fixed viewpoint is generated in a predetermined area using a visual stimulation display. Before the light stimulation point is generated or after the light stimulation point disappears, the subject is assisted to continuously focus on the fixed viewpoint and keep their line of sight fixed.

4. The visual function testing device based on eye tracking according to claim 1, characterized in that, The eye-tracking parameters include, but are not limited to: Accuracy, reaction time, spatial error, landing point error, first-step saccade amplitude gain, average speed, maximum speed, multi-step saccade incidence, blink rate, and average number of saccade steps.

5. The visual function testing device based on eye tracking according to claim 4, characterized in that, The analysis and evaluation of the subject's eye movement function yields the following results: The eye-tracking parameters of the subjects were compared and analyzed with those of healthy individuals of the corresponding age group to comprehensively assess the subjects' eye movement function.

6. The visual function testing device based on eye tracking according to claim 1, characterized in that, The field of view detection parameters include: The subject's light sensitivity threshold to various light stimulation points on the visual stimulation display.

7. The visual function testing device based on eye tracking according to claim 6, characterized in that, The analysis and evaluation of the subject's visual field function yields visual field assessment results, including: The light sensitivity threshold of each light stimulation point of the subject is compared with the standard light sensitivity threshold of the corresponding age group of healthy people to obtain the comparison results for each light stimulation point. Based on all the comparison results, the visual field detection evaluation results are generated.

8. The visual function testing device based on eye tracking according to claim 1, characterized in that, The comprehensive assessment of the subject based on eye movement function assessment results and visual field detection assessment results generates the subject's visual function detection analysis results, specifically including: When both the eye movement function assessment and visual field test assessment results are normal, the visual function test analysis result is determined to be normal; otherwise, the visual function test analysis result is determined to be abnormal.

9. The visual function testing device based on eye tracking according to claim 1, characterized in that, The threshold strategy is a testing strategy that quantifies and determines the photosensitivity threshold of each test site by evaluating the brightness of the stimulus.

10. A computer-readable storage medium having a computer program stored thereon, applied to a visual function testing device, the visual function testing device comprising: A visual stimulation display and an eye tracker; characterized in that, when the computer program is executed by a processor, it implements a visual function examination method based on eye tracking, the method comprising: Based on a predetermined threshold strategy, a visual stimulation display is used to generate light stimulation points in a predetermined area, and an eye tracker is used to track the subject's eye movements to generate the subject's visual function data. The eye movement function of the subjects is analyzed and evaluated based on the eye movement tracking parameters in the visual function data to obtain the eye movement function evaluation results. The visual field function of the subject is analyzed and evaluated based on the visual field detection parameters in the visual function data to obtain the visual field detection evaluation results. Based on the eye movement function assessment results and visual field test assessment results, the examinee is comprehensively evaluated to generate the examinee's visual function test analysis results, which are specifically: normal visual function or abnormal visual function.

11. A computer device comprising a storage medium and a processor as described in claim 10, wherein the storage medium stores a computer program, characterized in that, When the processor executes the computer program, it implements a visual function examination method based on eye tracking.

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