Visual field detection method and device
By displaying the central stimulation point and peripheral target on the display device to guide the subject's operation, the problem of the Humphrey visual field analyzer's large size and complex operation has been solved. This enables rapid and simple visual field testing, making it suitable for patients with limited mobility and areas with limited medical resources, and improving the accuracy and efficiency of the test.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-16
- Publication Date
- 2026-03-27
AI Technical Summary
Existing visual field testing devices, such as the Humphrey visual field analyzer, are large and complex to operate, making them difficult to use in areas with limited mobility and medical resources, thus limiting the widespread adoption of visual field testing.
Visual field detection is performed using a display device. By displaying the central stimulus point, central target, and peripheral target on the detection interface, subjects are guided to perform triggering operations. The visual field detection results are determined based on a preset target display strategy and the number of detections. Combined with a quality assurance mechanism, the accuracy and efficiency of the detection are improved.
It enables rapid and simple visual field testing, suitable for patients with limited mobility and areas with limited medical resources, improving the accuracy and efficiency of testing, and facilitating routine visual field testing and preliminary examinations.
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Figure CN121730730A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of medical testing technology, and in particular to a visual field testing method and device. Background Technology
[0002] Visual field testing is an important method for assessing the spatial range that a subject's eyes can see. The results of visual field testing can reflect the degree of difference between the subject's visual field and the normal visual field, and are of great significance for diseases such as glaucoma, retinal diseases, head injuries, neurological diseases and stroke.
[0003] In related technologies, visual field testing is typically performed by professional doctors and ophthalmologists using medical instruments. Taking the Humphrey visual field analyzer as an example, under the guidance of a doctor, the subject undergoes visual field testing using the Humphrey visual field analyzer. The analyzer randomly displays stimulus dots at different locations. If the subject sees a dot, they must react accordingly as quickly as possible to obtain the test results. The test results mainly include indicators such as Mean Deviation (MD) and Pattern Standard Deviation (PSD).
[0004] However, medical instruments such as the Humphrey visual field analyzer are large and have high operational requirements, which makes it difficult for patients with limited mobility to travel to places with such instruments for testing. In addition, these instruments are not readily available in areas with limited medical resources, thus limiting the application of visual field testing. Therefore, there is an urgent need for a fast and simple visual field testing method that can be used for daily visual field testing or preliminary visual field examination of subjects. Summary of the Invention
[0005] This application provides a field of view detection method and apparatus that can perform field of view detection quickly and easily.
[0006] In a first aspect, a field-of-view detection method is provided, applied to a display device, the display device including a monitor, the monitor being used to present a detection interface, the method comprising:
[0007] Within a preset first duration, the central stimulation point is displayed on the detection interface; within a preset second duration, based on a preset target display strategy, the central target and peripheral targets are displayed on the detection interface, wherein the preset target display strategy is used to determine the display data of the central target and peripheral targets;
[0008] In response to the subject's first trigger operation on the detection interface, the system determines the first response result corresponding to the first trigger operation and the target location area to be displayed in the next round of peripheral target display; and based on the first response result corresponding to the preset number of detections, the system determines the subject's detection result, which includes attention span and attention area.
[0009] This application guides the subject to trigger an operation by displaying a central stimulation point, a central target, and a peripheral target on a display device. Then, based on the subject's triggering operation, the subject's response to the central and peripheral targets is obtained, thus quickly and easily obtaining the detection results of the subject's visual field.
[0010] In one possible implementation, the method further includes: determining a quality indicator area on the detection interface based on attention span; displaying a central target within a preset third time period based on a preset target display strategy, and judging the target in the quality indicator area display; determining a second response result corresponding to a second trigger operation on the detection interface in response to a subject's second trigger operation; and determining the quality indicator of the subject's detection based on the second response result.
[0011] One possible implementation also includes: if saccades, loss of central target, false negatives or false positives are present in the quality indicators, it indicates that the test results of the subject are inaccurate; if saccades, loss of central target, false negatives or false positives are not present in the quality indicators, it indicates that the test results of the subject are accurate.
[0012] In one possible implementation, the quality indicators include saccade ratio, loss ratio, false positive and false negative. The method further includes: if the saccade ratio is higher than a preset first threshold, it indicates that the subject has saccade during the test; if the loss ratio is higher than a preset second threshold, it indicates that the subject has lost the central target during the test; if the false positive is higher than a preset third threshold, it indicates that the subject has a false positive during the test; if the false negative is higher than a preset fourth threshold, it indicates that the subject has a false negative during the test.
[0013] Using quality assurance mechanisms in visual field inspection helps to objectively quantify and verify the reliability and accuracy of test results, and adds rigor to the test results.
[0014] In one possible implementation, the display data includes display content, display size, and display position. Based on a preset target display strategy, a central target and peripheral targets are displayed. The implementation also includes: determining the display content of the central target and the display content of the peripheral targets based on a random algorithm and a preset display set; determining the display size of the central target and the display size of the peripheral targets based on target adjustment rules; and determining the display position of the peripheral targets based on target adjustment rules, target position area, and preset detection range. The preset target display strategy includes a random algorithm and target adjustment rules.
[0015] One possible implementation also includes: dividing the detection interface based on a preset division threshold to obtain the target meridian in the detection interface, the target meridian including a first meridian and a second meridian; displaying the peripheral target on the first meridian within a preset second time period.
[0016] In one possible implementation, during the second duration, it also includes: displaying peripheral stimulation points along the second meridian, the peripheral stimulation points and the peripheral target having the same eccentricity.
[0017] By introducing a meridian to define the location of the outer target in the detection interface, the accuracy and efficiency of detection can be improved with a limited number of detections.
[0018] One possible implementation also includes: obtaining the subject's initial information; determining the subject's test report based on the initial information and test results; and storing the data in the subject's test report.
[0019] By storing data from test reports at different times, historical data of the subject can be formed, which can be used to monitor the development of the subject's visual field or to detect the treatment effect.
[0020] One possible implementation includes: determining the subject's age information based on initial information; acquiring age-matched visual field data corresponding to the subject's age information; and determining comparative data between the detection results and the age-matched visual field data. The comparative data can be used to provide data support for evaluating the user's visual field detection results.
[0021] Secondly, a field-of-view detection device is provided, comprising a display module, a response module, and a processing module, wherein:
[0022] The display module is used to display the central stimulation point on the detection interface within a preset first duration; it is also used to display the central target and peripheral targets on the detection interface within a preset second duration based on a preset target display strategy, wherein the preset target display strategy is used to determine the display data of the central target and peripheral targets, and the preset second duration is shorter than the preset first duration;
[0023] The response module is used to respond to the subject's first trigger operation on the detection interface, determine the first response result corresponding to the first trigger operation and the target location area to be displayed in the next round of peripheral target display;
[0024] The processing module is used to determine the subject's test results based on the first response results corresponding to a preset number of tests. The test results include attention span and attention area. Attached Figure Description
[0025] Figure 1 These are schematic diagrams of the display device structure in some embodiments provided in this application;
[0026] Figure 2 This is a schematic flowchart of the field of view detection method provided in the embodiments of this application;
[0027] Figure 3 This is a schematic diagram of the detection interface in some embodiments provided in this application;
[0028] Figure 4 This is a schematic diagram of the detection interface in some embodiments provided in this application;
[0029] Figure 5 This is a schematic diagram of the detection interface in some embodiments provided in this application;
[0030] Figure 6 This is a schematic flowchart of another field-of-view detection method provided in the embodiments of this application;
[0031] Figure 7 This is a schematic diagram of the detection interface in some embodiments provided in this application;
[0032] Figure 8 This is a schematic flowchart of another field-of-view detection method provided in the embodiments of this application;
[0033] Figure 9 This is a schematic diagram of the area of attention in the comparative experimental detection results provided in the embodiments of this application;
[0034] Figure 10 This is a schematic diagram of the detection interface in the field of view detection method provided in the embodiments of this application;
[0035] Figure 11 This is a schematic diagram of the field of view detection device provided in the embodiments of this application. Detailed Implementation
[0036] The technical solutions of the embodiments of this application will be described below with reference to the accompanying drawings. In the description of the embodiments of this application, unless otherwise stated, " / " means "or," for example, A / B can mean A or B; "and / or" in this text is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Furthermore, in the description of the embodiments of this application, "multiple" refers to two or more than two.
[0037] Hereinafter, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature.
[0038] Specific details, such as particular system architectures and techniques, are set forth for illustrative purposes and not for limitation, to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application can be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted to avoid unnecessary detail that could obscure the description of this application.
[0039] For ease of understanding, some concepts involved in the embodiments of this application are introduced and explained below:
[0040] (1) Field of vision
[0041] Visual field, also known as field of view, refers to the spatial range that a person can see when looking at an object directly in front of them with their head and eyeballs fixed. This is called the static visual field, while the range visible when the eyes move is called the dynamic visual field. It is usually expressed in angles. The size and shape of the visual field are related to the distribution of sensory cells on the retina, and its range can be measured using a perimeter.
[0042] (2) Average deviation
[0043] Mean Deviation (MD) is the main indicator in the test results of the Humphrey visual field analyzer. MD reflects the average degree of deviation of the subject's visual field from the normal visual field. The greater the deviation of MD from zero, the greater the difference between the visual field and the normal visual field.
[0044] For example, in glaucoma patients, as the disease progresses, the MD value gradually increases towards a negative value, indicating a decrease in overall visual field sensitivity and the appearance of local visual field defects.
[0045] (3) Humphrey visual field detection
[0046] The Humphrey visual field analyzer primarily assesses the range and quality of the visual field by detecting the light sensitivity of different visual field regions. It employs the Swedish Interactive Threshold Algorithm (SITA), which dynamically adjusts the brightness of the test points based on the subject's response to the test, thus determining the sensitivity threshold of the retina to light stimuli. During the examination, the subject must focus on a fixed point in front of them, while the visual field analyzer randomly flashes light spots of varying brightness around that point. After the subject sees a light spot, they press a button to obtain their visual field range and sensitivity.
[0047] (4) Stimulation points
[0048] Stimulus points are locations where specific visual stimuli are presented to the subject during visual field testing. These stimuli are typically distributed in a regular pattern across different areas of the visual field. Stimulus points can take various forms, the most common being light spots. The size, brightness, and duration of the light spots can be adjusted according to the testing requirements. Furthermore, stimuli can also be graphics, lines, or other visual elements.
[0049] It should be understood that visual field testing is usually performed by professional doctors and ophthalmologists using medical instruments. Taking the Humphrey visual field analyzer as an example, the Humphrey visual field analyzer is characterized by its large size and high operational requirements. In particular, it is difficult for patients with limited mobility to travel to places with such medical instruments for testing, and in areas with limited medical resources, such medical instruments are not readily available, thus limiting the application of visual field testing.
[0050] In view of this, the visual field detection method and apparatus provided in this application are applied to a display device, the display device including a display for presenting a detection interface. Within a preset first duration, a central stimulation point is displayed on the detection interface; within a preset second duration, a central target and peripheral targets are displayed on the detection interface based on a preset target display strategy; in response to a subject's first trigger operation on the detection interface, a first response result corresponding to the first trigger operation and the target location area of the peripheral target to be displayed in the next round are determined; furthermore, based on the first response result corresponding to a preset number of detections, the subject's detection result is determined. This application guides the subject to trigger operations by displaying the central stimulation point, central target, and peripheral targets separately on the display device, and then obtains the subject's response result to the set of targets (central target and peripheral targets) based on the subject's trigger operation, thus quickly and easily obtaining the subject's visual field detection result.
[0051] The field of view detection method provided in this application can be applied to display devices such as tablet computers, desktop computers, laptop computers, and smart TVs. This application does not impose any restrictions on the specific type of display device.
[0052] For example, Figure 1 These are schematic diagrams of the display device structure in some embodiments provided in this application, such as... Figure 1 As shown, the display device 10 includes a display 11, a memory 12, a processor 13, and a power supply 14.
[0053] The display device 10 includes one or more processors 13, which can support the display device 10 in implementing the field of view detection method in the method embodiments. The processor 13 can be a general-purpose processor 13 or a special-purpose processor 13. For example, the processor 13 can be a central processing unit (CPU), a digital signal processor (DSP), an audio processor 13, a graphics processor 13, an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices.
[0054] The processor 13 can be used to control the display device 10, execute software programs, and process data from the software programs. The display device 10 may also include a communication unit for inputting (receiving) and outputting (transmitting) signals.
[0055] The display 11 has a detection interface for displaying images and videos, such as for field of view detection.
[0056] The display device 10 may include one or more memories 12 storing programs that can be executed by a processor 13 to generate instructions that cause the processor 13 to execute the field of view detection method described in the embodiment according to the instructions.
[0057] The memory 12 can also store data. The processor 13 can also read the data stored in the memory 12, which may be stored at the same memory address as the program, or it may be stored at a different memory address than the program.
[0058] The processor 13 and memory 12 can be configured separately or integrated together; for example, integrated on the system on chip (SOC) of the terminal device.
[0059] The display device 10 may also include a mobile communication module, a wireless communication module, an audio module, a speaker, etc.
[0060] The wireless communication module can provide solutions for wireless communication applications on the display device 10, including wireless local area networks (WLAN) (such as wireless fidelity (Wi-Fi) networks), Bluetooth (BT), global navigation satellite system (GNSS), frequency modulation (FM), and near field communication (NFC). The wireless communication module can be one or more devices integrating at least one communication processing module. The wireless communication module receives electromagnetic waves via an antenna, modulates and filters the electromagnetic wave signals, and sends the processed signal to the processor. The wireless communication module can also receive signals to be transmitted from the processor, modulate and amplify them, and then convert them into electromagnetic waves for radiation via the antenna.
[0061] For ease of understanding, the following embodiments of this application will be described using the following methods: Figure 1 Taking the display device with the structure shown as an example, the detection interface is displayed on the monitor of the display device, combined with... Figures 2 to 10 The application scenarios and application scenarios of the field of view detection method provided in this application will be described in detail.
[0062] Figure 2 This is a schematic flowchart of the field of view detection method provided in the embodiments of this application, as shown below. Figure 2 As shown, the method includes the following steps:
[0063] S110. Within the preset first duration, the central stimulation point is displayed on the detection interface.
[0064] The detection interface is mainly used to define the display area for visual field detection. Specifically, the detection interface is used to limit the display range of peripheral stimulus points in visual field detection, thereby facilitating the determination of the display position of peripheral stimulus points in each round of detection; and to determine the display position of the central stimulus point.
[0065] It should be understood that, under normal circumstances, the visual field of a person's single eye (left or right eye) is roughly elliptical. It should be noted that the visual field of each person may vary due to individual differences, age, and other factors.
[0066] It should be understood that the display area used for visual field detection in the display interface is greater than or equal to the maximum visual field range of a single eye. This display area can be a square area, a circular area, etc. This application does not impose any restrictions on the type of display area.
[0067] In some embodiments, the detection interface further includes an information area for displaying information. The information area can be set at the edge or corner of the detection mask and can be used to display relevant information during the detection process; it can also be used to display the subject's initial information; and it can also display the parameter settings for this detection.
[0068] For example, it can display the progress of the currently being tested and the patient's response to the stimulus (such as the number of correct responses, the number of incorrect responses, and the number of no responses); it can display the subject's code, name, date of birth, test date, etc.; the intensity of the stimulus, the preset first duration, the preset second duration, the response duration, etc.
[0069] It should be understood that the central stimulus point is a fixation point located in the center of the display interface, and is a clearly marked point. This central stimulus point can be a cross, a circle, or other shapes, used to help the subject fixate on the central stimulus point as much as possible throughout the visual field test to ensure the accuracy of the test results, because the fixation position of the eyeball directly affects the visual field test results.
[0070] In some embodiments, prior to step 110, the method further includes obtaining initial information about the subject, including the subject's name, code, gender, date of birth, the eye to be examined, and the maximum extent to which the subject is expected to be examined.
[0071] The code is used to store the subject's test data, which includes initial information and test results; the date of birth is used to determine the subject's age; the eyes being tested are used to distinguish whether the eyes being tested are the left, right, or both eyes; and the expected maximum extent of testing is used to determine the preset testing range for this test.
[0072] It should be understood that the maximum degree of visual field testing varies for different subjects. For example, for subjects who have never undergone visual field testing, the maximum degree of visual field testing is the maximum value in visual field testing, and the corresponding preset testing range is also the maximum value. For subjects who have been diagnosed with glaucoma, the previous maximum visual field test was 24°, and the maximum degree of visual field testing is greater than 24°, so it can be set to 30°, and the corresponding preset testing range is 30°.
[0073] It should be understood that different expected maximum levels of testing correspond to different preset detection ranges, and consequently, different detection accuracies. This ability to selectively set the expected maximum level of testing for different individuals can improve the accuracy of testing for each subject.
[0074] It should also be understood that by setting a first duration to limit the display time of the central stimulus point, it is easier for the subject to better focus on the stimulus point, reduce gaze deviation, and improve the accuracy of the test. The preset first duration can be 800 milliseconds (ms), 900 ms, etc.
[0075] Figure 3 This application provides schematic diagrams of the detection interface in some embodiments, such as... Figure 3 As shown, the detection interface has a square display area, and a circular stimulation point, i.e., the central stimulation point, is displayed in the center of the display area. The display duration of the central stimulation point is a preset first duration.
[0076] In some embodiments, the size of the central stimulation point can also be limited. It is important to note that if the size of the central stimulation point is too large or too small, it will affect the test results. Therefore, the size of the central stimulation point needs to be set within an appropriate range to facilitate fixation by the subject, reduce line-of-sight deviation, and improve test accuracy. For example, Figure 3 The circle's dimensions are 0.5°. It should be understood that the size of this circle is also related to the distance between the subject and the display in the display device.
[0077] S120. Within a preset second time period, based on a preset target display strategy, the central target and peripheral targets are displayed on the detection interface.
[0078] The preset second duration is used to display the central and peripheral targets. The display of the central and peripheral targets is used to determine the subject's sensitivity to the peripheral target; therefore, the preset second duration is often relatively short. In some embodiments, the preset second duration is shorter than the preset first duration to improve detection accuracy. For example, the preset first duration is 800ms and the preset second duration is 250ms.
[0079] It should be understood that the central target is used to detect whether the subject maintains fixation on the central position, while the peripheral target is used to detect the subject's attention area (AA) and attentional degree (AD). Through comparative experiments, it can be determined that AA and AD are accurate in evaluating visual field detection results.
[0080] The attention area, also known as the visual attention area (VAA), is the maximum visual field that a subject can focus on when concentrating on a central target.
[0081] Attention span refers to the range of stimuli that an individual can simultaneously focus on during visual attention. Specifically, AD measures the breadth of attention to peripheral stimuli while focusing on the central target stimulus.
[0082] The preset target display strategy is used to determine the display data for the central target and the peripheral targets. The display data includes the display content, display size, and display position.
[0083] It should be understood that the central target and the central stimulus point have the same display location, but the displayed content is different. Furthermore, the types of content displayed for the central target and the peripheral target can be the same or different.
[0084] The central or peripheral target can be any of the following: numbers, letters, patterns, Chinese characters, or geometric shapes. In other words, both the central and peripheral targets can be numbers; the central target can be a number and the peripheral targets can be letters; the central target can be letters and the peripheral targets can be patterns, and so on. For example, the central target is the number 3 and the peripheral target is the number 9; the central target is the number 3 and the peripheral target is the letter A; the central target is the number Z and the peripheral target is a turtle pattern, etc.
[0085] Generally, the shapes of the central target and peripheral targets are different from the shape of the central stimulus point, which helps the subject distinguish between the target and the stimulus point, and to identify the target. Here, the target refers to the central target and peripheral targets, and the stimulus point refers to the central stimulus point and the peripheral stimulus point mentioned below.
[0086] It's important to note that the central and outer targets can also display the same content. For example, both the central and outer targets could be the number 3.
[0087] Figure 4 This application provides schematic diagrams of the detection interface in some embodiments, such as... Figure 4 As shown, the detection interface has a square display area, with the central target 3 displayed in the center of the display area and the peripheral targets 9 displayed around the center.
[0088] The display size of the central and peripheral targets can be determined by setting a fixed size based on a preset target display strategy, or by setting the central target to a fixed size and the peripheral targets to be adjusted according to their display positions. For example, when the peripheral targets are displayed closer to the central target, their display size becomes smaller; when the peripheral targets are displayed farther from the central target, their display size becomes larger.
[0089] In some embodiments, the display size can be calculated using the following formula: Display size = 0.4 * (1 + eccentricity / 4).
[0090] Figure 5 This application provides schematic diagrams of the detection interface in some embodiments, such as... Figure 5 As shown, Figure 5In the middle (a) displaying peripheral targets in a display position close to the central target, the central target 2 and peripheral target 6 are displayed in the display area; Figure 5 In (b) when displaying peripheral targets at a display position far from the central target, the central target 5 and peripheral target 7 are displayed in the display area, wherein the display size of peripheral target 7 is larger than the display size of peripheral target 6, and the display size of central target 5 is the same as that of central target 2.
[0091] In some embodiments, the display data includes display content, display size, and display position, and the preset target display strategy includes a random algorithm and target adjustment rules. For step 120, displaying the center target and peripheral targets based on the preset target display strategy includes:
[0092] First, based on a random algorithm and a preset display set, the display content of the central target and the display content of the peripheral targets are determined.
[0093] The preset display set refers to the set of display content that can be used for the central target and the peripheral targets. This preset display set can be one or more of numbers, letters, patterns, Chinese characters, or geometric shapes. The display content for the central target and the display content for the peripheral targets are determined from the preset display set using a random algorithm.
[0094] For example, the preset display set includes: 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F, G, and the random algorithm determines the central target as A and the peripheral target as 3; the preset display set includes 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, and the random algorithm determines the central target as 8 and the peripheral target as 2.
[0095] It should be understood that if the display content of both the central target and the peripheral targets are set to numbers, and numbers are sufficient to meet the display requirements, then the corresponding display content can be directly determined through a random algorithm.
[0096] It should also be understood that the above-mentioned random algorithm can be a function in a programming language to determine random numbers, or a shuffling algorithm, etc. The embodiments of this application do not impose any restrictions on the random algorithm.
[0097] Secondly, based on the target adjustment rules, determine the display size of the central target and the display size of the peripheral targets.
[0098] The target adjustment rules are used to adjust the display size of the center target and the outer targets. The center target and the outer targets can be set to a fixed size, or the center target can be set to a fixed size and the outer targets can be set to adjust according to the display position. For example, when the display position of the outer targets is close to the center target, the display size of the outer targets becomes smaller; when the display position of the outer targets is far away from the center target, the display size of the outer targets becomes larger.
[0099] Finally, based on the target adjustment rules, target location area, and preset detection range, the display position of the peripheral target is determined.
[0100] It should be understood that the display position of the central target remains unchanged. By adjusting the display position of the peripheral targets, the subject's response to peripheral targets in different directions is detected to determine the subject's visual sensitivity in each direction.
[0101] Among them, the target location area is the main basis for adjusting the display angle of the peripheral target. The target location area is a dynamically adjusted area, which will be determined in this round based on the expected maximum degree of inspection and the first response result obtained in the previous round of inspection.
[0102] In some embodiments, the display position of the peripheral target can be determined by parameter estimation by sequential testing (PEST). It should be understood that the display position of the peripheral target can be determined by the eccentricity.
[0103] The display positions of the central and peripheral targets in the first round can be determined by the maximum expected inspection. The display positions of the central and peripheral targets in the second round and subsequent rounds can be determined by the first response results of the previous round.
[0104] The display position of peripheral targets is dynamically adjusted by adjusting the target adjustment rules, target location area, and preset detection range; among them, the maximum expected detection range is used to determine the preset detection range for this detection.
[0105] S130, In response to the subject's first trigger operation on the detection interface, determine the first response result corresponding to the first trigger operation and the target location area of the peripheral target to be displayed in the next round.
[0106] It should be understood that at this time, the detection interface displays a trigger area, which is used to interact with the subject. That is, the trigger area displays a set of options containing the display content of the central target and the peripheral target. In response to the subject's first trigger operation on the detection interface, the central target and the peripheral target selected by the subject can be determined.
[0107] For example, if in this detection, the central target and the peripheral targets are like Figure 4 As shown, the set of options displayed in the trigger area can be 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, including the central target 3 and the outer target 9.
[0108] As can be seen from the application scenario, for most subjects undergoing visual field testing, their visual field range is more or less missing. The trigger area can be set in the center of the detection interface to facilitate the subject to perform the trigger operation intuitively, i.e., the first trigger operation.
[0109] Before entering the detection interface of this visual field detection method, the subject can be helped to understand the usage method through video or text instructions, including the triggering operation for the trigger area. For example, the text instruction is "Please click on what you see, first select the content seen in the middle, and then select the content seen around it."
[0110] The display device determines the corresponding first response result based on the subject's first trigger operation (including two triggers to the central target and the peripheral target). It should be understood that the subject will perform two triggers. If both triggers are correct, the corresponding first response result is a correct response. If there is one trigger error or two trigger errors, the corresponding first response result is an incorrect response.
[0111] Based on the subject's first trigger operation, the display device can also determine the target location area for the next round of display of peripheral targets. It should be understood that if the first response result is a correct response, it means that the subject can see the peripheral targets at this time while looking at the central target, and the display range of peripheral targets needs to be further expanded; if the first response result is an incorrect response, it means that the subject cannot see the peripheral targets at this time, or the subject's attention is deviated. In this case, the display range of peripheral targets is narrowed, that is, the target location area for the next round of display of peripheral targets is adjusted.
[0112] S140. Based on the first response results corresponding to the preset number of tests, determine the test results of the subject.
[0113] It should be understood that steps 110 to 130 are the first response results obtained in the process of a single test. In this embodiment of the application, the test results of the subject need to be determined based on the first response results corresponding to the preset number of tests.
[0114] The test results include attention span and attention area, which are used to present the examinee's field of vision.
[0115] The visual field detection method provided in this application is applied to a display device, which includes a display for presenting a detection interface. Within a preset first duration, a central stimulation point is displayed on the detection interface; within a preset second duration, a central target and peripheral targets are displayed on the detection interface based on a preset target display strategy; in response to a subject's first trigger operation on the detection interface, a first response result corresponding to the first trigger operation and the target location area of the peripheral target to be displayed in the next round are determined; furthermore, based on the first response result corresponding to a preset number of detections, the subject's detection result is determined. This application guides the subject to trigger operations by displaying the central stimulation point, central target, and peripheral targets on the display device, and then obtains the subject's response results to the central and peripheral targets based on the subject's trigger operations, thus quickly and easily obtaining the subject's visual field detection results.
[0116] It should be understood that the field of view detection method provided in this application embodiment is different from a dedicated system based on professional hardware (such as a Humphrey field of view analyzer). This field of view detection method can be deployed on display devices through applications, web pages, etc., or it can be a dedicated software system that is compatible with display devices, thereby enhancing the application scope and adaptability of field of view detection and making the method easier to use in different application scenarios.
[0117] In some embodiments, by introducing a meridian to define the location of the peripheral target in the detection interface, the accuracy and efficiency of detection can be improved with a limited number of detections. Figure 6 This is a flowchart illustrating another field-of-view detection method provided in an embodiment of this application, as shown below. Figure 6 As shown, the method also includes the following steps:
[0118] S210. Divide the detection interface based on the preset division threshold to obtain the target meridian in the detection interface.
[0119] The detection interface is divided by the target meridian. That is, with the center point of the detection interface as the center, multiple line segments are radiated from the center point to the edge of the detection interface. Multiple meridians are determined in the detection interface to display the outer targets, namely the target meridians.
[0120] It should be understood that the number of target meridians meets a preset division threshold. In order for the target meridians to cover the detection interface, this preset division threshold is greater than or equal to 3. For example, the number of target meridians is 4, 5, 6, 8, 10, 16, etc.
[0121] For example, if the preset division threshold is 3, the corresponding target meridian in the detection interface corresponds to line segments in the directions of 0°, 120°, and 240°, respectively; if the preset division threshold is 5, the corresponding target meridian in the detection interface corresponds to line segments in the directions of 0°, 72°, 144°, 216°, and 288°, respectively; if the preset division threshold is 8, the corresponding target meridian in the detection interface corresponds to line segments in the directions of 0°, 45°, 90°, 135°, 180°, 225°, 270°, and 315°, respectively.
[0122] It should be understood that multiple detections are required in the direction corresponding to each target meridian to obtain the attention span in that direction. Therefore, by setting a preset threshold, the number of target meridians can be reasonably determined, which can improve the efficiency and accuracy of detection.
[0123] It should also be understood that the visual field detection method proposed in this application differs from professional equipment such as the Humphrey visual field analyzer. While professional medical equipment yields highly accurate results, the visual field detection method proposed in this application is a fast and simple method. By deploying it on commonly used display devices such as tablets and computers, it allows examinees to quickly and conveniently obtain highly accurate results. Therefore, although more target meridians and more detailed division of the detection interface generally lead to more accurate results, in this application embodiment, by reasonably setting a preset division threshold, detection efficiency can be improved while maintaining a certain level of accuracy. For example, the preset division threshold can be 6 or 8.
[0124] The target meridian includes a first meridian and a second meridian; the first meridian is used to set the peripheral targets, and the second meridian is used to set the peripheral stimulus points. It should be understood that for each detection, only one peripheral target is displayed within a preset second time period. Therefore, the first meridian is one of multiple target meridians, and the other target meridians are all the second meridian.
[0125] It should also be understood that step 210 can be in Figure 2 The process before step 110 can also be the process before step 120.
[0126] S220. Within a preset second time period, display the outer targets on the first meridian.
[0127] The display direction of peripheral targets is restricted by each first meridian within the target meridian. It should be understood that for each first meridian, the corresponding peripheral target will be displayed, and the target location area of the peripheral targets in the next round on that first meridian will be adjusted based on the subject's first response.
[0128] The sensitivity of subjects in the direction corresponding to each first meridian can be determined by limiting the number of times peripheral targets on each first meridian are displayed. For example, the number of times peripheral targets on each first meridian are displayed can be determined by setting a preset number of tests. For instance, if the preset number of tests is 48 and there are 8 first meridians, then each first meridian needs to be tested 6 times.
[0129] In some embodiments, displaying a peripheral stimulus point on the second meridian can enhance the subject's visual perception, thereby improving the accuracy of the detection. Therefore, the visual field detection method further includes: displaying a peripheral target on the first meridian and a peripheral stimulus point on the second meridian within a preset second duration, wherein the peripheral stimulus point and the peripheral target have the same eccentricity.
[0130] The peripheral stimulation point can also be used for fixation. In order to see the central and peripheral targets, the subject's visual field may deviate from the central position. By setting the peripheral stimulation point, the accuracy of visual field detection results can be improved.
[0131] It should be understood that the initial setting of the peripheral target can be done by placing it at the center of the first meridian corresponding to the maximum extent expected to be inspected. If the examinee's first response to the peripheral and central targets is correct, the next peripheral target will be placed on the first meridian corresponding to the area from the center to the edge. If the examinee's first response to the peripheral and central targets is incorrect, the next peripheral target will be placed on the first meridian corresponding to the area from the center to the center. Furthermore, the next peripheral target can always be placed at a new central position within the corresponding area. In other words, by using a progressively approaching strategy along the first meridian, the display position of the next peripheral target is determined, achieving comprehensive inspection along that first meridian.
[0132] For example, with a preset threshold of 8, the corresponding target meridians in the detection interface correspond to line segments in the directions of 0°, 45°, 90°, 135°, 180°, 225°, 270°, and 315°, respectively. The first meridian can correspond to one of these directions: 0°, 45°, 90°, 135°, 180°, 225°, 270°, or 315°. For instance, if the first meridian corresponds to 225°, then the second meridian refers to 0°, 45°, 90°, 135°, 180°, 270°, or 315°. Figure 7 This application provides schematic diagrams of the detection interface in some embodiments, such as... Figure 7 As shown, Figure 7 Figure (a) shows the central target 3, the peripheral target 6, and the peripheral stimulation point on the second meridian displayed on the detection interface during a single test at 225°, within a preset second time duration. This is in response to the subject's first trigger operation on the detection interface.
[0133] If the first response result corresponding to the first triggering operation is a correct response, it will be displayed for a preset second duration in the next detection. Figure 7 In Figure (b), the detection interface displays the central target 9, extends outward along the first meridian to display the peripheral target 7, and displays the peripheral stimulation point at the corresponding position on the second meridian. It should be noted that... Figure 7 In Figure (b), the ratio of the peripheral target to the peripheral stimulus point is... Figure 7 The size of the peripheral target and peripheral stimulus point in figure (a) is large.
[0134] If the first response result corresponding to the first triggering operation is characterized as an error response, it will be displayed for a preset second duration in the next detection. Figure 7 Figure (c) shows the central target 5 on the detection interface. Zooming out to the first meridian reveals the outer target 4, and the corresponding outer stimulus point is displayed on the second meridian. It should be noted that... Figure 7 In figure (c), the ratio of the peripheral target to the peripheral stimulus point is... Figure 7 The size of the peripheral target and peripheral stimulus point in figure (a) is small.
[0135] pass Figure 8 The embodiments also show that the central target and the peripheral target are different in different detection counts. By using a random algorithm, different central targets and peripheral targets are displayed in different detection counts. This random method improves the accuracy of detection.
[0136] It should also be understood that detection can be carried out gradually from the position where the first meridian connects with the central target, towards the edge of the expected maximum degree of inspection; or, detection can be carried out gradually from the edge where the first meridian connects with the preset maximum degree of inspection, towards the position where the first meridian connects with the central target; and the first response results at different positions of the first meridian can be recorded.
[0137] In some embodiments, the detection results obtained through the above method, combined with a quality assurance mechanism, improve the reliability and effectiveness of the visual field detection results. Figure 8 This is a flowchart illustrating another field-of-view detection method provided in this application embodiment, used to provide a quality assurance mechanism, such as... Figure 2 As shown, the method is in Target Meridian The content shown also includes the following steps:
[0138] S310. Based on the breadth of attention, determine the quality indicator area on the detection interface.
[0139] After completing a preset number of tests, the test results are obtained, including attention span and attention region. Then, based on each attention span, a quality indicator region is determined through a preset range. For example, the preset range could refer to the range corresponding to 3° inside and outside the attention span, thus obtaining the quality indicator region; the preset range could also refer to the range corresponding to 5° inside and outside the attention span.
[0140] It should be understood that for a detection interface with target meridians, the quality indicator area can be determined by the attention span corresponding to each target meridian. In other words, the quality indicator area is determined by using the attention span corresponding to each target meridian as a benchmark and a preset range.
[0141] In some embodiments, the quality index region can also be determined on the detection interface based on the attention region, and the quality index region can be determined by a preset range with the boundary of the attention region as a reference.
[0142] S320. Within a preset third time period, based on a preset target display strategy, display the central target and the judgment target in the quality indicator area.
[0143] Prior to step 320, the central stimulation point needs to be displayed on the detection interface within a preset first time period. In other words, the quality assurance mechanism is the same as the detection process.
[0144] It should be understood that the preset third duration may be equal to or different from the preset second duration.
[0145] The data displayed for the target is similar to that for the surrounding targets, except that they are displayed in different locations. The target needs to be displayed in the quality indicator area.
[0146] For the judgment targets on each first meridian, it can be set to display both the quality indicator area within the attention span and the quality indicator area outside the attention span, thereby improving the accuracy of the quality assurance mechanism.
[0147] S330, In response to the subject's second trigger operation on the detection interface, determine the second response result corresponding to the second trigger operation.
[0148] It should be understood that the second triggering operation is the same as the first triggering operation, see the description of step 130 above.
[0149] S340. Based on the preset index count and the second response result, determine the quality indicators of the subject test.
[0150] The preset index count is used to limit the number of times the quality assurance mechanism can be implemented. For example, when there are 8 target meridians, there is one instance each of attention breadth and depth, for a total of 16 times, which means the preset index count is 16 times.
[0151] If the quality indicators include saccades, loss of central target, false negatives, or false positives, it indicates that the test results of the subject are inaccurate; if the quality indicators do not include saccades, loss of central target, false negatives, or false positives, it indicates that the test results of the subject are accurate.
[0152] The quality indicators include saccade rate, loss rate, false positives, and false negatives. The saccade rate represents the proportion of times a subject correctly responded to peripheral targets but incorrectly responded to central targets out of all pre-defined indicators. A high saccade rate indicates that the subject has engaged in excessive saccades and has not maintained central fixation as required by the task.
[0153] The missing rate represents the proportion of times a participant makes an incorrect response to the central objective out of all pre-defined indicators. A higher missing rate indicates poor performance.
[0154] A false positive is the percentage of subjects who make the correct choice when the probe stimulus appears at the outer edge of the attention span. For example, this value should be between 0 / 8 and 8 / 8, with lower values being better.
[0155] A false negative represents the proportion of subjects who make an incorrect choice when the probe stimulus appears within the attentional span. For example, this value should be between 0 / 8 and 8 / 8, with lower being better.
[0156] If the saccade rate is higher than the preset first threshold, it indicates that the subject has saccades during the test; if the loss rate is higher than the preset second threshold, it indicates that the subject has lost the central target during the test; if the false positive rate is higher than the preset third threshold, it indicates that the subject has a false positive during the test; if the false negative rate is higher than the preset fourth threshold, it indicates that the subject has a false negative during the test.
[0157] It should be understood that other quality control indicators may also exist to determine whether the test results of the subjects are accurate.
[0158] In the above embodiments, the initial information of the subject is obtained. If the test results are determined to be accurate through a quality control mechanism, the test report of the subject is determined based on the initial information and the test results, and the data in the test report of the subject is stored.
[0159] By storing data from test reports at different times, historical data of the subject can be formed, which can be used to monitor the development of the subject's visual field or to detect the treatment effect.
[0160] In some embodiments, the subject's age information can be determined using the birth date in the initial information; then, based on the subject's age information, age-matched visual field data corresponding to the age information is obtained, and comparison data between the detection results and the age-matched visual field data is determined. The comparison data can be used to provide data support for evaluating the user's visual field detection results.
[0161] For example, a comparative experiment includes a first group of M subjects with different visual field defects (including glaucoma patients, stroke patients, optic nerve damage patients, etc.) and a second group of M healthy subjects. It should be understood that the two groups of subjects are of similar age.
[0162] For both groups of subjects, the visual field analyzer and the display device corresponding to the visual field detection method proposed in the embodiments of this application were used to obtain the attention span and attention area corresponding to each target meridian.
[0163] Table 1 below shows the mean values of AD in the two groups of subjects in the comparative experiment.
[0164] First Group of Subjects 0° 45° 90° 135° 180° 225° 270° 315° Second Group of Subjects 10.8 9.5 7.3 9.7 11.6 12.2 9.8 9.9 Figure 9 15.6 14.6 13.1 14.6 15.6 15.0 14.4 14.4
[0165] It should be understood that the statistical values of the data in Table 1 are less than 0.01.
[0166] Figure 9 This is a schematic diagram of the area of attention in the comparative experimental detection results provided in the embodiments of this application, such as... Figure 9 As shown, Figure 9 Figure (a) in the diagram is a schematic diagram of the attentional areas of the second group of subjects. Figure 9 Figure (b) is a schematic diagram of the attentional areas of the first group of subjects. Figure 9 Figure (c) shows the average deviation determined by the Humphrey visual field analyzer for the first group of subjects.
[0167] pass Figure 10 The results show a strong correlation (positive correlation) between the attention area obtained by the visual field detection method proposed in this application and the average deviation in the Humphrey visual field analyzer, indicating that the more severe the average deviation of the first group of subjects, the smaller the corresponding attention area.
[0168] Furthermore, through multiple sets of comparative experiments, the correlation coefficient between the two was found to be 0.8, with a significance level of less than 0.001.
[0169] Figure 10 This is a schematic diagram of the detection interface in the field-of-view detection method provided in the embodiments of this application, as shown below. Figure 10 As shown, during the detection process, firstly, the display... Figure 10 In (a), the central stimulation point is 800ms, followed by the display. Figure 10(b) Central target, peripheral target, and peripheral stimulus point 250ms, in Figure 10 (c) The trigger area displays a set of options containing the content of the central target and the peripheral target. The subject triggers the options corresponding to the central target and the peripheral target in sequence by using a mouse or touching the screen with their finger, and obtains the corresponding response result. If the response result is correct, it will be displayed in the next test. Figure 10 (e) Central target, peripheral target, and peripheral stimulus point (250ms). If the response is incorrect, it will be displayed in the next test. Figure 10 (f) Central target, peripheral target and peripheral stimulus point 250ms.
[0170] In the next test, it will also be displayed first. Figures 2 to 10 The central stimulation point of (d) is 800ms.
[0171] The embodiments of this application provide a more sensitive and comprehensive assessment of the examinee's visual abilities. This method utilizes higher-order visual processing and attention mechanisms to perform a richer assessment of the examinee's actual visual field performance.
[0172] Meanwhile, the ability to perform field of view inspection automatically and at its own pace eliminates the interference of subjective human judgment and intervention, reducing potential biases and labor costs associated with manual testing.
[0173] It should be understood that the above are illustrative examples of application scenarios and do not limit the application scenarios of this application in any way.
[0174] It should be understood that the above examples are provided to help those skilled in the art understand the embodiments of this application, and are not intended to limit the embodiments of this application to the specific values or scenarios illustrated. Those skilled in the art can obviously make various equivalent modifications or changes based on the above examples, and such modifications or changes also fall within the scope of the embodiments of this application.
[0175] The above text combined Figure 11 The present application describes in detail the field of view detection method according to its embodiments. The following will be combined with... Figure 11 This document describes in detail the device embodiments of this application. It should be understood that the field of view detection device in the embodiments of this application can execute the various field of view detection methods described in the foregoing embodiments of this application. That is, the specific working processes of the various products described below can be referred to the corresponding processes in the foregoing method embodiments.
[0176] Figures 2 to 10 This is a schematic diagram of the field of view detection device provided in an embodiment of this application. It should be understood that the field of view detection device 600 can perform... Figure 1 The illustrated field-of-view detection method; the field-of-view detection device 600 includes a display module 610, a response module 620, and a processing module 630, wherein:
[0177] The display module 610 is used to display the central stimulation point on the detection interface within a preset first duration; and is also used to display the central target and the peripheral target on the detection interface within a preset second duration based on a preset target display strategy, wherein the preset target display strategy is used to determine the display data of the central target and the peripheral target, and the preset second duration is shorter than the preset first duration.
[0178] The response module 620 is used to respond to the subject's first trigger operation on the detection interface, and to determine the first response result corresponding to the first trigger operation and the target location area of the peripheral target to be displayed in the next round;
[0179] The processing module 630 is used to determine the test results of the subject based on the first response results corresponding to a preset number of tests. The test results include the span of attention and the area of attention.
[0180] Each module of the field of view detection device 600 can execute the corresponding steps in the above method embodiment, so the details of each module will not be elaborated here. Please refer to the description of the corresponding steps above for details.
[0181] It should be noted that the aforementioned field of view detection device 600 is embodied in the form of a functional module. The term "module" here can be implemented in software and / or hardware, without specific limitations.
[0182] For example, a "module" can be a software program, hardware circuit, or a combination of both that implements the above functions. Hardware circuits may include application-specific integrated circuits (ASICs), electronic circuits, processors (e.g., shared processors, proprietary processors, or group processors) and memory for executing one or more software or firmware programs, combined logic circuits, and / or other suitable components that support the described functions.
[0183] Therefore, the modules of the various examples described in the embodiments of this application can be implemented in electronic hardware, or a combination of computer software and electronic hardware. 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.
[0184] like The display device shown can have a memory that stores related programs of the field of view detection method provided in the embodiments of this application, and a processor that can call the related programs of the field of view detection method stored in the memory to execute the field of view detection method of the embodiments of this application when performing image restoration on the terminal device.
[0185] This application also provides a computer program product that, when executed by a processor, implements the field-of-view detection method of any method embodiment in this application.
[0186] The computer program product can be stored in memory, for example, it is a program. The program is eventually converted into an executable object file that can be executed by the processor after processes such as preprocessing, compilation, assembly and linking.
[0187] This application also provides a computer-readable storage medium storing a computer program thereon, which, when executed by a computer, implements the field-of-view detection method of any of the method embodiments of this application. The computer program may be a high-level language program or an executable object program.
[0188] The computer-readable storage medium is, for example, memory. Memory can be volatile or non-volatile, or it can include both volatile and non-volatile memory. Non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory can be random access memory (RAM), which serves as an external cache. By way of example, but not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous linked dynamic random access memory (SLDRAM), and direct rambus RAM (DR RAM).
[0189] In this application, "at least one" means one or more, and "more than one" means two or more. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or multiple items. For example, at least one of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple.
[0190] It should be understood that in the various embodiments of this application, the order of the above-mentioned processes does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.
[0191] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. 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.
[0192] 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.
[0193] In the several embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for example, the division of units is merely a logical functional division, and there may be other division methods in actual implementation; for example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.
[0194] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.
[0195] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.
[0196] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. 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 scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A method for detecting a field of view, characterized in that, Applied to a display device, the display device including a display for presenting a detection interface, including: Within a preset first duration, the central stimulation point is displayed on the detection interface; Within a preset second time period, based on a preset target display strategy, a central target and peripheral targets are displayed on the detection interface, wherein the preset target display strategy is used to determine the display data of the central target and the peripheral targets; In response to the subject’s first trigger operation on the detection interface, determine the first response result corresponding to the first trigger operation and the target location area of the peripheral target to be displayed in the next round; Based on the first response result corresponding to a preset number of tests, the test result of the subject is determined, and the test result includes attention span and attention area.
2. The field of view detection method according to claim 1, characterized in that, Also includes: Based on the aforementioned attention span, a quality indicator region is determined on the detection interface; Within a preset third time period, based on the preset target display strategy, the central target is displayed, and the target is judged in the quality indicator area display; In response to a subject’s second triggering operation on the detection interface, a second response result corresponding to the second triggering operation is determined; Based on the preset number of indexes and the second response result, the quality index of the subject test is determined, wherein the preset number of indexes is less than the preset number of tests.
3. The field of view detection method according to claim 2, characterized in that, Also includes: If the quality indicators include saccades, loss of central target, false negatives, or false positives, it indicates that the test results of the subject are inaccurate. If the quality indicators do not exhibit saccades, loss of central target, false negatives, or false positives, it indicates that the test results of the subject are accurate.
4. The field of view detection method according to claim 2 or 3, characterized in that, The quality indicators include saccade rate, loss rate, false positive, and false negative; the method further includes: If the saccade ratio is higher than a preset first threshold, it indicates that the subject has saccades during the detection process; If the loss ratio is higher than a preset second threshold, it indicates that the subject has lost the central target during the detection process; If the false positive rate is higher than a preset third threshold, it indicates that the subject has a false positive during the testing process; If the false negative is higher than a preset fourth threshold, it indicates that the subject has a false negative during the testing process.
5. The field of view detection method according to claim 1, characterized in that, The display data includes display content, display size, and display position. The method of displaying a central target and peripheral targets based on a preset target display strategy also includes: Based on a random algorithm and a preset display set, the display content of the central target and the display content of the peripheral targets are determined; Based on the target adjustment rules, the display size of the central target and the display size of the peripheral targets are determined; Based on the target adjustment rules, the target location area, and the preset detection range, the display position of the peripheral target is determined; The preset target display strategy includes the random algorithm and the target adjustment rules.
6. The field of view detection method according to claim 1, characterized in that, Also includes: The detection interface is divided based on a preset division threshold to obtain the target meridian in the detection interface, wherein the target meridian includes a first meridian; During the preset second time period, the peripheral target is displayed on the first meridian.
7. The field of view detection method according to claim 6, characterized in that, Within the second duration, it also includes: On the second meridian, peripheral stimulation points are displayed, which have the same eccentricity as the peripheral target, wherein the target meridian includes the second meridian, which is different from the first meridian.
8. The field of view detection method according to claim 1, characterized in that, Also includes: Obtain initial information from the subjects; Based on the initial information and the test results, the test report of the subject is determined, and the data in the test report of the subject is stored.
9. The field of view detection method according to claim 8, characterized in that, Also includes: Based on the initial information, the age information of the subject is determined; Based on the subject's age information, age-matched visual field data corresponding to the age information is obtained, and comparison data between the detection results and the age-matched visual field data is determined.
10. A field of view detection device, characterized in that, include: The display module is used to display the central stimulation point on the detection interface within a preset first duration. It is also used to display a central target and a peripheral target on the detection interface within a preset second time period, based on a preset target display strategy, wherein the preset target display strategy is used to determine the display data of the central target and the peripheral target, and the preset second time period is shorter than the preset first time period; The response module is used to respond to the subject's first trigger operation on the detection interface, and determine the first response result corresponding to the first trigger operation and the target location area of the peripheral target to be displayed in the next round; The processing module is used to determine the test results of the subject based on the first response results corresponding to a preset number of tests, wherein the test results include attention span and attention region.