Apparatus for providing visual perception training for strabismus using virtual reality and visual stimulation, and method for operating an apparatus for providing visual perception training for strabismus using virtual reality and visual stimulation

Abstract

To provide visual perception training for strabismus using virtual reality and visual stimuli.SOLUTION: There is provided a device for providing virtual perception training for strabismus using virtual reality and visual stimuli, where a dichoptic presentation is provided in consideration of deviation of a user's eyeball so as to prevent additional damage to stereoscopic vision due to suppression, and is provided by adjusting a degree of difficulty by changing the locations of visual stimuli on the basis of a level of deviation and training capability of the user, thus making it possible for the user to receive training suitable for the user's condition, as well as to simultaneously undergo visual perception training including eye exercise (movement) training and stereoscopic perception recognition.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a device that provides visual perception training for strabismus using virtual reality and visual stimuli, and a method of operating the device. [Background technology]

[0002] In recent years, with the development of media, the incidence of myopia, astigmatism, strabismus, etc. has increased. Although there has been much research into the treatment of these diseases, there is still a lack of research into the factors that affect the development of normal vision.

[0003] Strabismus is a condition in which the eyes do not line up, and if not treated early, it can lead to permanent loss of vision, so it must be detected and corrected early in childhood.

[0004] If strabismus appears between the ages of 2 and 5, the child's eyes will see different objects, and as a result, two completely different images will be transmitted to the brain, causing visual confusion in which completely different objects appear double. Furthermore, experiencing the phenomenon of double vision, in which a single image appears to be in a different place at the same time, the child will ignore the image coming from one side in order to resolve the visual confusion and double vision. As a result, the child will abandon the binocular vision function that allows them to perceive objects in three dimensions, and eventually give up using the affected eye, leading to amblyopia.

[0005] If these symptoms are left untreated, the child will become unable to correct their vision by wearing glasses or lenses or undergoing surgery when they reach adulthood, and will end up seeing with only one eye, resulting in an inability to perceive distance in three dimensions. Therefore, if strabismus appears in children, it is important to diagnose it early and treat it appropriately for the sake of their vision and quality of life.

[0006] However, if the angle of strabismus is small or the fusion ability is good, eyeglass treatment or orthoptic training can be performed, but there are problems in that the treatment takes a long time and is costly.

[0007] Therefore, it is necessary to develop a technology that provides and controls eye movement and visual perception training based on virtual reality in order to improve the user's (subject's) eye movement ability and visual perception ability, including stereoscopic perception. Summary of the Invention [Problem to be solved by the invention]

[0008] The present invention has been made in consideration of the above circumstances, and its purpose is to provide a virtual reality-based eye movement and visual perception training device and method that can prevent further damage to stereoscopic vision due to suppression by providing a dichoptic presentation that takes into account the deviation of the user's eyes.

[0009] Another object of the present invention is to provide a virtual reality-based eye movement and visual perception training device and method that allows users to receive training suited to their own condition by adjusting the difficulty level by changing the position of visual stimuli based on the user's deviation level and training ability, as well as to simultaneously train eye movement (movement) and visual perception, including stereoscopic perception.

[0010] The problems to be solved by the present invention are not limited to those mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description. [Means for solving the problem]

[0011] A virtual reality-based eye movement and visual perception training providing device according to an embodiment of the present invention for solving the above-mentioned problems includes a communication module, an input module, a display module including a plurality of first and second displays corresponding to the eyes of a test subject, a memory for storing at least one process necessary for providing virtual reality-based eye movement and visual perception training, and a control module for controlling the virtual reality-based eye movement and visual perception training to be performed based on the at least one process, wherein the control module outputs a first image and a second image representing visual stimuli (dichoptic presentation) for inducing binocular disparity to each of the first and second displays, acquires visual information about the test subject based on the test subject's response to the visual stimuli received through the input module, and controls the training by changing only the visual stimuli of the first and second images output corresponding to the eye with strabismus based on the acquired visual information, wherein the visual information includes information on the presence or absence of strabismus for the test subject's left and right eyes, and strabismus angle and stereoscopic information, which are information regarding the degree of strabismus.

[0012] Meanwhile, a method for providing virtual reality-based eye movement and visual perception training according to an embodiment of the present invention includes the steps of outputting a first image and a second image including visual stimuli (dichoptic presentation) for inducing binocular disparity to each of a plurality of first and second displays provided in the device, wherein the first and second displays are respectively positioned at positions corresponding to the eyes of a test subject; receiving a response of the test subject to the visual stimuli; acquiring visual information about the test subject based on the response; and controlling the training provided to the test subject by changing only the visual stimuli of the images output corresponding to the eyeball with strabismus among the first and second images based on the acquired visual information, wherein the visual information may include information about the presence or absence of strabismus regarding the left and right eyes of the test subject, and strabismus angle and stereoscopic information, which are information about the degree of strabismus.

[0013] Further details of the invention are included in the detailed description and drawings. [Effects of the Invention]

[0014] According to the present invention, further impairment of stereoscopic vision due to suppression can be prevented by providing a dichoptic presentation that takes into account the deviation of the user's eyes.

[0015] Furthermore, according to the present invention, the position of the visual stimulus is changed based on the user's deviation level and training ability, and the difficulty level is adjusted accordingly. This not only allows the user to receive training suited to their own condition, but also allows for simultaneous training of eye movement (movement) and visual perception, including stereoscopic perception.

[0016] The effects of the present invention are not limited to those mentioned above, and other effects not mentioned above will be clearly understood by those skilled in the art from the following description. [Brief explanation of the drawings]

[0017] [Figure 1] 1 is a diagram illustrating the concept of strabismus and training to improve the visual ability and stereoscopic perception of the eyes. [Figure 2] 1 is a block diagram showing the configuration of a virtual reality-based eye movement and visual perception training providing device according to an embodiment of the present invention; [Figure 3] 10 is a diagram illustrating an example of an image output through a display module of a virtual reality-based eye movement and visual perception training providing device according to an embodiment of the present invention. FIG. [Figure 4] FIG. 10 is a diagram showing an example of a third image in which visual stimuli from the first and second images are combined and guided by a virtual reality-based eye movement and visual perception training providing device according to an embodiment of the present invention. [Figure 5] 1 is a flowchart illustrating a method for providing virtual reality-based eye movement and visual perception training according to an embodiment of the present invention. [Figure 6] 1 is a flowchart illustrating a process of measuring a stereoscopic effect among visual information about a test subject in order to provide virtual reality-based eye movement and visual perception training according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0018] The advantages and features of the present invention, as well as methods for achieving them, will become apparent from the following detailed description of the embodiments in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, and may be realized in various different forms. However, the present embodiments are provided to complete the disclosure of the present invention and to allow those skilled in the art to fully understand the scope of the present invention, and the present invention is only defined by the scope of the claims.

[0019] The terms used in this specification are for the purpose of describing the embodiments and are not intended to limit the present invention. In this specification, the singular includes the plural unless otherwise specified. The terms "comprises" and / or "comprising" used in this specification do not exclude the presence or addition of one or more other elements other than the elements listed. The same reference numerals refer to the same elements throughout this specification, and "and / or" includes each and every combination of one or more of the listed elements. Even if "first," "second," etc. are used to describe various elements, these elements are not limited by these terms. These terms are used merely to distinguish one element from another. Therefore, it goes without saying that a first element referred to below may also be a second element within the technical spirit of the present invention.

[0020] Unless otherwise defined, all terms (including technical and scientific terms) used in this specification are used in the sense that they can be commonly understood by those skilled in the art to which the present invention belongs. Furthermore, terms defined in commonly used dictionaries are not to be interpreted ideally or excessively unless they are clearly and specifically defined.

[0021] Spatially relative terms such as "below," "beneath," "lower," "above," and "upper" may be used to easily describe the relationship of one component to another, as illustrated. Spatially relative terms should be understood to include different orientations of components in use or operation in addition to the orientation shown. For example, if the components shown are turned over, a component described as "below" or "beneath" another component can be positioned "above" the other component. Thus, the exemplary term "below" can include both an orientation of below and above. Components can be oriented in other directions, allowing spatially relative terms to be interpreted accordingly.

[0022] The terms "module" and "module" used herein refer to software or hardware components such as FPGAs or ASICs, and each module performs a specific function. However, the term "module" or "module" is not limited to software or hardware. A module or module may reside on an addressable storage medium or may execute on one or more processors. Thus, by way of example, a "module" or "module" includes components such as software components, object-oriented software components, class components, and task components, as well as processes, functions, attributes, procedures, subroutines, program code segments, drivers, firmware, microcode, circuits, data, databases, data structures, tables, arrays, and variables. The functionality provided within a module or module may be combined into fewer components and modules or modules, or may be further separated into additional components and modules or modules.

[0023] Unless otherwise defined, all terms (including technical and scientific terms) used in this specification are used in the sense that they can be commonly understood by those skilled in the art to which the present invention belongs. Furthermore, terms defined in commonly used dictionaries are not to be interpreted ideally or excessively unless they are clearly and specifically defined.

[0024] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. A test subject referred to in the following description refers to a user who performs eye movement and visual perception training using a virtual reality-based eye movement and visual perception training device according to an embodiment of the present invention.

[0025] FIG. 1 is a diagram illustrating the concept of strabismus and training to improve the visual ability and stereoscopic perception of the eyes.

[0026] Strabismus is a visual disorder in which the eyes do not line up and point in different directions. When one eye is looking straight ahead, the other eye turns inward or outward, or up or down. Strabismus can be constant, but it can also occur intermittently, with the eyes intermittently shifting to stare straight ahead, or from staring straight ahead to intermittently shifting.

[0027] Figure 1 shows an example of a case where the right eye of a test subject has exotropia. When the test subject is looking straight ahead, the left eye faces forward, but the right eye faces outward.

[0028] In order to improve the visual and stereoscopic abilities of the subject's eyes, the subject must repeatedly train his right eye to focus inward, i.e., to the center.

[0029] The present invention provides such eye movement and visual perception training based on virtual reality.

[0030] FIG. 2 is a block diagram showing the configuration of a virtual reality-based eye movement and visual perception training providing device according to an embodiment of the present invention.

[0031] Referring to FIG. 2, a virtual reality-based eye movement and visual perception training provision device (hereinafter referred to as the "training provision device") 100 according to an embodiment of the present invention includes a communication module 110, an input module 130, a display module 150, a memory 170 and a control module 190.

[0032] The communication module 110 performs wired or wireless communication with at least one external device (such as a server), and in particular, performs wireless communication by transmitting and receiving wireless signals through a communication network using wireless internet technology.

[0033] Examples of wireless Internet technologies include WLAN (Wireless LAN), Wi-Fi (registered trademark) (Wireless-Fidelity), Wi-Fi (Wireless Fidelity) Direct, DLNA (registered trademark) (Digital Living Network Alliance), WiBro (Wireless Broadband), WiMAX (registered trademark) (World Interoperability for Microwave Access), HSDPA (High Speed ​​Downlink Packet Access), HSUPA (High Speed ​​Uplink Packet Access), LTE (Long Term Evolution), and LTE-A (Long Term Evolution-Advanced), and the training provision device 100 will send and receive data using at least one wireless Internet technology, including Internet technologies not listed above.

[0034] The short-range communication network may be a wireless personal area network (WPA), and may support short-range communication using at least one of Bluetooth (registered trademark), RFID (Radio Frequency Identification), Infrared Data Association (IrDA), UWB (Ultra Wideband), ZigBee (registered trademark), NFC (Near Field Communication), Wi-Fi (Wireless Fidelity), Wi-Fi Direct, and Wireless Universal Serial Bus (Wireless USB) technologies.

[0035] The input module 130 can acquire signals corresponding to inputs from the subject, such as inputs from the subject for measurement or training, responses to visual stimuli provided via the display module 150, etc.

[0036] In this case, the input module 130 may include a keyboard, a keypad, a button, a jog shuttle, a wheel, etc. The input of the DUT in the input module 130 may be, for example, a button press, a touch, a drag, etc.

[0037] The input module 130 may be configured as a separate module connected wirelessly or by wire to the training providing device 100. For example, the training providing device 100 may provide the test subject with an image for measurement or training via a display module 150 attached to the test subject's head, and may receive a response from the test subject via the input module 130, which is a separate module attached to the test subject's hand.

[0038] The display module 150 outputs a video or image. For example, the display module 150 may include an LCD, an OLED, an AMOLED, or the like.

[0039] The display module 150 may include a plurality of first and second displays corresponding to the subject's eyes (left and right eyes). The first display may output a first image, and the second display may output a second image. The first and second images are used to display a visual stimulus (dichoptic presentation) for inducing binocular disparity, and may be any one of identical images, images that at least partially overlap each other, and images that do not overlap each other. The visual stimulus may be a frame and a sinusoidal grating having a certain shape, and may include a reference stimulus and a target stimulus.

[0040] Here, the display module 150 may have a first display and a second display that are physically separated, or may be configured as a left region and a right region of a single display.

[0041] The memory 170 stores various data (information) as well as at least one data (information) and at least one process required for providing virtual reality-based eye movement and visual perception training. For example, the memory 170 may store a training program, at least one piece of subject information (personal information, visual information, response information, training results, etc.), various reference values ​​serving as standards for measuring strabismus angle and / or stereoscopic perception, measurement images, training images, etc. In addition, the memory 170 may store various commands, algorithms, etc. for performing the virtual reality-based eye movement and visual perception training method.

[0042] The memory 170 may include at least one type of storage medium selected from the group consisting of flash memory, hard disk, micro multimedia card, card-type memory (e.g., SD or XD memory), random access memory (RAM), static random access memory (SRAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), programmable read-only memory (PROM), magnetic memory, magnetic disk, and optical disk. The memory 170 may store information temporarily, permanently, or semi-permanently, and may be provided as a built-in or removable type.

[0043] The control module 190 controls the configuration within the training providing device 100 or processes and calculates various information, and controls the virtual reality-based eye movement and visual perception training to be performed based on at least one process stored in the memory 170.

[0044] The control module 190 outputs a first image and a second image, which represent visual stimuli (dichoptic presentation) for inducing binocular disparity, to the first display and the second display, respectively, and acquires visual information about the subject based on the subject's response to the visual stimuli received via the input module 130. Then, the control module 190 controls the training by changing only the visual stimuli of the image output corresponding to the eye with strabismus, out of the first image and the second image, based on the acquired visual information. In this case, the first image and the second image represent the same visual stimuli, and the image output corresponding to the eye with strabismus has a visual deviation according to the acquired visual information.

[0045] That is, the control module 190 outputs a first image and a second image that present visual stimuli to the left and right eyes of the subject, respectively, and controls the eye movement training by leaving the image output corresponding to the eyeball that does not have strabismus as it is and changing only the image output corresponding to the eyeball that has strabismus, so that the eyeball movement training is performed. That is, the eyeball that has strabismus is trained to focus in a specific direction.

[0046] Meanwhile, the visual information may include at least one of information on the presence or absence of strabismus regarding the left and right eyes of the subject, and information on the angle of strabismus and stereoscopic effect, which are information on the degree of strabismus.

[0047] The control module 190 can measure the strabismus angle of the test subject by inducing the respective visual stimuli included in the first image and the second image to be combined into one image and measuring the movement distance of the test subject's line of sight. In addition, the control module 190 can measure the three-dimensional effect of the test subject by receiving a response to the stimulus that gives a three-dimensional effect from one of the first display and the second display, and receiving a response as to whether the three-dimensional effect direction is concave or convex with respect to the stimulus that gives a three-dimensional effect.

[0048] The control module 190 can be realized by software, hardware, or a combination thereof. For example, the control module 190 can be realized in hardware form using an FPGA (field programmable gate array), an ASIC (application specific integrated circuit), a semiconductor chip, or various other types of electronic circuits. For example, the control module 190 can be realized in software form using logic programs or various computer languages ​​executed by the above-mentioned hardware.

[0049] Unless otherwise specified in the following description, it can be understood that the operation of the training providing device 100 is performed under the control of the control module 190.

[0050] The training providing device 100 according to an embodiment of the present invention may include various devices capable of performing computational processing. For example, the training providing device 100 may include a desktop PC, a mobile phone, a smartphone, a laptop computer, a personal digital assistant (PDA), a portable multimedia player (PMP), a slate PC, a tablet PC, an ultrabook, a wearable device, etc.

[0051] Meanwhile, the training provision device 100 may include a head-mounted device such as an HMD (Head Mounted Display) that is worn on the subject's head to display images, smart glasses, smart goggles, or a display device such as a mobile phone that can be attached to a head-mounted device.

[0052] 2 is merely one example and is not limiting. For example, if the display module 150 is implemented as a touch screen, the display module 150 may also function as the input module 130. In this case, a separate input module 130 may not be provided, or an input module 130 with limited functions such as volume control, a power button, and a home button may be provided. The display module 150 may also be provided in the form of a video output port that transmits video information to an external display device.

[0053] 3 is a diagram showing an example of an image output via a display module of a virtual reality-based eye movement and visual perception training device according to an embodiment of the present invention, illustrating a case in which a test subject with exotropia in the right eye is controlled to undergo training. Also, FIG. 3 shows the display module as seen by the test subject when wearing the training device 100, and includes a first display 151 arranged in an area corresponding to the test subject's left eyeball and a second display 152 arranged in an area corresponding to the test subject's right eyeball.

[0054] As described above, the visual stimuli include a reference stimulus and a target stimulus, and the visual stimulus included in the image output corresponding to the eyeball with strabismus among the first and second images is disposed at a position determined based on the strabismus angle in the corresponding image, and is provided such that there is a difference between the central axis of the reference stimulus and the central axis of the target stimulus in the corresponding image. On the other hand, the visual stimulus included in the image output corresponding to the eyeball without strabismus among the first and second images is disposed based on the center of the corresponding image, and is provided such that the central axis of the reference stimulus and the central axis of the target stimulus are aligned on the same line in the corresponding image.

[0055] Referring to FIG. 3, a first image 10 is output through a first display 151 corresponding to an eyeball that does not have strabismus, and a second image 20 is output through a second display 152 corresponding to an eyeball that has strabismus.

[0056] In this case, both the first image 10 and the second image 20 display visual stimuli, including a heart-shaped object as a reference stimulus and a star-shaped object as a target stimulus. The first image 10, which corresponds to the left eye without strabismus, displays the visual stimulus at its center, whereas the second image 20, which corresponds to the right eye with strabismus, displays the visual stimulus at a position that reflects the strabismus angle of the subject. Furthermore, the central axis C (which coincides with the central axis of the first image 10) of the first reference stimulus 11 displayed in the first image 10 and the central axis D of the first target stimulus 12 are aligned on the same line, whereas the central axis C of the second reference stimulus 21 and the central axis D of the second target stimulus 22 displayed in the second image 20 are aligned at different positions.

[0057] Meanwhile, when the training providing device 100 provides eye movement and visual perception training for the subject, the central axis D of the second target stimulus 22 may be gradually moved toward the central axis C of the second reference stimulus 21 by a predetermined distance over a predetermined time period, allowing the subject to perform training. Here, the predetermined distance and the predetermined time period are set based on visual information about the subject, and may be changed according to the subject's training ability or as needed.

[0058] FIG. 4 is a diagram showing an example of a third image in which visual stimuli from the first and second images are combined and induced by a virtual reality-based eye movement and visual perception training providing device according to an embodiment of the present invention.

[0059] 3, the subject is guided to combine the two visual stimuli into one image by simultaneously providing the first image 10 and the second image 20 via the first display 151 and the second display 152, respectively, so that the subject can perceive a visual stimulus such as the third image 30. As a result, the subject cannot perceive a three-dimensional effect through the third target stimulus 32, but can perceive a three-dimensional effect through the third reference stimulus 31.

[0060] FIG. 5 is a flowchart illustrating a method for providing virtual reality-based eye movement and visual perception training according to an embodiment of the present invention.

[0061] A first image and a second image including a visual stimulus (dichoptic presentation) for inducing binocular disparity are output to each of a plurality of first displays and second displays provided in the training provision device 100 and provided to the test subject (S210), and a response to the visual stimulus is received from the test subject (S230).

[0062] Based on the response, visual information about the subject is acquired (S250), and based on the acquired visual information, only the visual stimulus of the image output corresponding to the eyeball with strabismus from the first image and the second image is changed to control the training provided to the subject (S270).

[0063] Specifically, when controlling the training, the central axis of the target stimulus, which is one of the reference stimulus and target stimulus contained in the image output corresponding to the eyeball with strabismus, is moved toward the reference stimulus, and the subject is controlled to train the corresponding eyeball.

[0064] FIG. 6 is a flowchart illustrating a process of measuring a stereoscopic effect among visual information related to a test subject in order to provide virtual reality-based eye movement and visual perception training according to an embodiment of the present invention.

[0065] 5, the training providing device 100 can acquire the strabismus angle and stereoscopic information as the visual information of the test subject through the visual information acquiring step, among the steps of FIG. 5. Among them, the stereoscopic information can be acquired from the test subject's response.

[0066] Specifically, a response to a stimulus that gives a sense of three-dimensionality from either the first display or the second display is received from the test subject (S251), and a response as to whether the direction of the three-dimensionality is concave or convex with respect to the stimulus that gives a sense of three-dimensionality is received (S253). In this way, the training provision device 100 can measure the three-dimensionality of the test subject.

[0067] The steps of a method or algorithm described in connection with embodiments of the present invention may be embodied directly in hardware, in software modules executed by hardware, or in a combination thereof, which may reside in Random Access Memory (RAM), Read Only Memory (ROM), Erasable Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), Flash Memory, a hard disk, a removable disk, a CD-ROM, or any other form of computer-readable storage medium known in the art to which the present invention pertains.

[0068] Although the embodiments of the present invention have been described above with reference to the accompanying drawings, those skilled in the art will understand that the present invention may be embodied in other specific forms without changing the technical spirit or essential features thereof. Therefore, the above-described embodiments should be understood as illustrative in all respects and not restrictive.

Claims

1. A device for providing visual perception training for strabismus using virtual reality and visual stimuli, a communication module; an input module; a display module including a plurality of first displays and a plurality of second displays, each corresponding to an eyeball of the subject; a control module that controls the virtual reality and visual stimuli so that visual perception training for strabismus is performed; Including, The control module outputting a first image and a second image representing the visual stimulus (dichoptic presentation) for inducing binocular disparity to the first display and the second display, respectively; acquiring visual information about the subject based on responses of the subject to the visual stimuli received via the input module; and controlling the training by changing only the visual stimulus of the image output corresponding to the eyeball having strabismus among the first image and the second image based on the acquired visual information, The visual information includes information on the presence or absence of strabismus regarding the left eye and the right eye of the subject, and information on the angle of strabismus and stereoscopic effect, which are information on the degree of strabismus; the visual stimuli include a reference stimulus and a target stimulus; The visual stimulus included in the image output corresponding to the eyeball having strabismus among the first image and the second image is disposed at a position in the image determined based on the strabismus angle, and is disposed with a difference between a central axis of the reference stimulus and a central axis of the target stimulus. A device that provides visual perception training for strabismus using virtual reality and visual stimuli.

2. 2. The device for providing visual perception training for strabismus using virtual reality and visual stimuli as described in claim 1, characterized in that the visual stimuli included in the image output corresponding to the eyeball without strabismus among the first image and the second image are positioned based on the center of the image, and the central axis of the reference stimulus and the central axis of the target stimulus are aligned on the same line.

3. The control module 2. The device for providing visual perception training for strabismus using virtual reality and visual stimuli as described in claim 1, characterized in that when the training is controlled, the central axis of the target stimulus is gradually moved toward the central axis of the reference stimulus by a predetermined distance over a predetermined time period.

4. 4. The device for providing visual perception training for strabismus using virtual reality and visual stimuli as described in claim 3, wherein the predetermined distance and the predetermined time are set based on visual information about the subject.

5. The control module 2. A device for providing visual perception training for strabismus using virtual reality and visual stimuli as described in claim 1, characterized in that the strabismus angle of the subject is measured by combining the respective visual stimuli contained in the first image and the second image into a single image and measuring the distance of gaze movement.

6. The control module receiving a signal corresponding to a response of the test subject to the visual stimulus, which is given by the test subject using the input module, to a stimulus that gives a sense of three-dimensionality on the first display and the second display; 2. The device for providing visual perception training for strabismus using virtual reality and visual stimuli as described in claim 1, characterized in that the device measures the three-dimensionality of the test subject by receiving a signal corresponding to the test subject's response using the input module regarding whether the direction of the three-dimensionality of the stimulus that gives the three-dimensionality is concave or convex.

7. 1. A method of operating a device for providing visual perception training for strabismus using virtual reality and visual stimuli, comprising: a step of outputting a first image and a second image including a visual stimulus (dichoptic presentation) for inducing binocular disparity to a plurality of first displays and a plurality of second displays provided in the device by a control module of the device, the first displays and the second displays being disposed at positions corresponding to the eyes of a subject; the control module receiving the subject's response to the visual stimuli; the control module acquiring visual information about the test subject based on the response; the control module controls the training provided to the test subject by changing only the visual stimulus of the image output corresponding to the eyeball having strabismus among the first image and the second image based on the acquired visual information; Including, The visual information includes information on the presence or absence of strabismus regarding the left eye and the right eye of the subject, and information on the angle of strabismus and stereoscopic effect, which are information on the degree of strabismus; the visual stimuli include a reference stimulus and a target stimulus; The visual stimulus included in the image output corresponding to the eyeball having strabismus among the first image and the second image is disposed at a position in the image determined based on the strabismus angle, and is disposed with a difference between a central axis of the reference stimulus and a central axis of the target stimulus. How it works.

Images