Apparatus and method for searching for and training preferred retinal site by provision of different stimulation

Abstract

To provide a technology for searching for preferred retinal site of a patient with visual field damage.SOLUTION: An apparatus, method, and program for searching for and training a preferred retinal site of a patient with visual field damage are provided. The method includes providing a first stimulation to the patient through a stimulation providing device in conjunction with the apparatus, receiving a response to the first stimulation from the patient through the stimulation providing device, analyzing a head movement of the patient corresponding to the first stimulation when the response is correct, identifying the preferred retinal site based on a result of the analyzing, performing training related to central fixation of the patient, and performing training related to enhancement of the preferred retinal site of the patient.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a device, method, and program for searching and training preferred retinal regions in patients with visual field damage. do. [Background technology]

[0002] Patients with damaged visual fields maintain their vision by using the peripheral part of the damaged visual field (peripheral vision). , identify the area of ​​peripheral vision used by the patient and provide constant stimulation to strengthen the patient's peripheral vision. It is important to do so.

[0003] Therefore, conventionally, microperimetry and the like have been used. The patient's preferred retinal area is determined through specialized measurement methods. However, this requires a diagnosis from a medical specialist, so the patient However, there was a problem in that it was not possible to directly confirm the subject's preferred retinal area.

[0004] In addition, eccentric viewing training for patients with visual field damage Although methods to strengthen peripheral vision through training are being utilized, If vision is not in the patient's preferred retinal region, they will not use their enhanced peripheral vision in their daily lives, This resulted in a decrease in the efficiency of treatment.

[0005] Therefore, we aimed to accurately measure the preferred retinal area of ​​patients with visual field damage and identify the preferred retinal area that the patient mainly uses. There is a need to increase the efficiency of the patient's peripheral vision enhancement by enhancing the peripheral vision. Summary of the Invention [Problem to be solved by the invention]

[0006] The present invention has been made in view of the above circumstances, and its object is to provide a preference network for patients with visual field damage. The present invention provides a membrane site exploration and training device, method, and program.

[0007] The problems to be solved by the present invention are not limited to the problems mentioned above, and Further problems will be clearly understood by those skilled in the art from the following description. [Means for solving the problem]

[0008] In order to solve the above-mentioned problems, a preferred retinal region of a visual field damaged patient according to one embodiment of the present invention is The method includes providing a first stimulus to the patient through a stimulus providing device associated with the device. and receiving a response to the first stimulus from the patient through the stimulus providing device. and if the response is correct, analyzing the patient's head movement corresponding to the first stimulus. and identifying the preferred retinal site based on the analyzed results, The retinal region may be used as a target for training at least one of the patient's visual acuity and visual perception abilities. The target is set and a second stimulus is provided.

[0009] In the present invention, the step of analyzing the patient's head movement comprises: The head position changed by the head movement is analyzed in two-dimensional coordinates, The initial position is determined by using two lines that intersect the center of the screen of the stimulation device to determine the patient's line of sight. The head position may be fixed at the center of the screen.

[0010] In the present invention, the step of providing the first stimulus is performed until a predetermined condition is met. The step of repeatedly providing the first stimulus and receiving the response includes providing a plurality of first stimuli repeatedly. Multiple responses can be received for each stimulus.

[0011] In the present invention, the step of analyzing the patient's head movement comprises: Classify only certain responses into one or more clusters, and Based on the results, the patient's preferred retinal site can be predicted.

[0012] In the present invention, the step of identifying the preferred retinal site includes: The patient's preferred retinal location can be identified through component analysis.

[0013] In the present invention, the first stimulus is displayed at the center of the screen in a direction corresponding to whether the direction is horizontal or vertical. and a behavioral task requiring a judgment based on the second stimulus, wherein the second stimulus is presented to the patient's preferred retinal location. The training task may include a training task utilizing collinear arrays of target and surround stimuli.

[0014] In order to solve the above-mentioned problems, a preferred retinal region of a visual field damaged patient according to one embodiment of the present invention is The training method includes training related to the patient's central fixation. and performing training related to strengthening the patient's preferred retinal region, The preferred retinal site is a first stimulus provided to the patient through a stimulus delivery device associated with the device. The location is determined by a search method that analyzes the patient's head movements due to stimulation.

[0015] In the present invention, the step of performing training related to central fixation is performed through the stimulus providing device. a diagonal line across the patient's field of view, and instructs the patient to identify the intersection of the diagonal line and the predicted location; It may require you to gaze at a point.

[0016] In the present invention, the step of conducting training related to strengthening the preferred retinal area includes providing the stimulus. providing a second stimulus to the preferred retinal location through a device and having the patient locate the second stimulus; It may be required to do so.

[0017] In the present invention, the first stimulus is displayed in a direction in the center of the screen of the stimulus providing device. The behavioral task requires a judgment of whether the stimulus is horizontal or vertical, and the second stimulus is delivered to the preferred retinal area. Training tasks can include providing collinear arrays of target and peripheral stimuli.

[0018] In order to solve the above-mentioned problems, a preferred retinal region of a visual field damaged patient according to one embodiment of the present invention is The exploration and training method includes providing a first stimulus to the patient through a stimulus providing device associated with the device. and receiving a response to the first stimulus from the patient through the stimulus providing device. and if the response is correct, determining the patient's head movement corresponding to the first stimulus. a step of analyzing, a step of identifying the preferred retinal site based on the analyzed result, and performing training relating to central fixation of the patient; and performing training related to strengthening the patient's preferred retinal location.

[0019] Other methods, systems, and methods for implementing the present invention are also possible. A computer-readable recording medium for recording the computer program can also be provided. Cut. [Effects of the Invention]

[0020] According to the present invention, the stimulation device can be used to provide a stimulation to the affected area without the need for a diagnosis by a medical professional. The behavioral tasks provided alone can identify the preferred retinal regions in patients with visual field damage.

[0021] In addition, by inducing the patient's central fixation, continuous stimulation of a certain part of the peripheral vision is induced. This can lead to the development of preferred retinal regions.

[0022] In addition, by strengthening the patient's preferred retinal area, peripheral vision can be utilized in the patient's real life. This can strengthen the effectiveness of treatment.

[0023] The effects of the present invention are not limited to those mentioned above, and further effects not mentioned include: The following description will be clear to those skilled in the art. [Brief explanation of the drawings]

[0024] [Figure 1] 1 is a block diagram of a device for locating a preferred retinal site in a patient with visual field damage according to an embodiment of the present invention. [Figure 2] 1 is a flowchart illustrating a method for searching for a preferred retinal region in a patient with visual field damage according to an embodiment of the present invention. [Figure 3] FIG. 1 is a diagram illustrating preferred retinal regions of a patient with visual field damage according to an embodiment of the present invention. [Figure 4] 1A to 1C are diagrams illustrating a method for analyzing two-dimensional coordinates according to head movement in accordance with an embodiment of the present invention. [Figure 5] 1A to 1C are diagrams illustrating a method for analyzing two-dimensional coordinates according to head movement in accordance with an embodiment of the present invention. [Figure 6] 1 is a block diagram of a preferred retinal region training device for a visual field damage patient according to an embodiment of the present invention. [Figure 7] 1 is a flowchart illustrating a method for training preferred retinal regions in patients with visual field damage according to an embodiment of the present invention. [Figure 8] 1A and 1B are diagrams illustrating central fixation training according to an embodiment of the present invention. [Figure 9] 1 is a block diagram of a preferred retinal site exploration and training device for visual field damage patients according to an embodiment of the present invention. [Figure 10]1 is a flowchart illustrating a method for searching and training preferred retinal regions for a patient with visual field damage according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0025] The advantages and features of the present invention and the manner in which they are achieved are described in detail below in conjunction with the accompanying drawings. However, the present invention will be elucidated with reference to the embodiments disclosed below. However, the present embodiment is not limited to the above, and may be realized in various different forms. It is intended that the disclosure of the present invention be complete and that the present invention be understood by those skilled in the art. The present invention is defined by the claims. It is merely justified.

[0026] The terms used in this specification are intended to describe the embodiments and are not intended to limit the present invention. In this specification, the singular includes the plural unless specifically stated otherwise. As used in the specification, "comprises" and / or "comprises" "rising" refers to the presence or addition of one or more other elements in addition to the element being mentioned. The same reference numerals refer to the same elements throughout the specification, and the like are used interchangeably with "and / or "includes each and every combination of one or more of the listed elements. Although "first," "second," etc. are used to describe various components, Of course, the components are not limited by these terms. Therefore, the following terms are used to distinguish one component from another. It goes without saying that one component may also be a second component within the technical concept of the present invention.

[0027] Unless otherwise defined, all terms (including technical and scientific terms) used herein are used in a way that can be commonly understood by those skilled in the art to which the present invention pertains. In addition, terms defined in commonly used dictionaries are not expressly defined. Unless otherwise stated, it should not be interpreted ideally or excessively.

[0028] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0029] Before proceeding, the meanings of the terms used in this specification will be briefly explained. These are merely for the purpose of facilitating understanding of the present specification and are not to be construed as expressly limiting the present invention. Unless otherwise stated, it is not intended to limit the technical idea of ​​the present invention. Caution should be taken.

[0030] The present invention aims to explore and train preferred retinal regions to improve visual acuity and visual perception in patients with visual field damage. The present invention aims to improve at least one of the above-mentioned functions by exploring preferred retinal areas and providing treatment through training. Depending on the effect, the present invention can be applied as a digital therapeutic agent.

[0031] Digital therapeutics are digital therapeutics used like surgery, procedures, or medicine to treat patients. Digital healthcare is a technology that uses applications, games, VR, and It uses software such as chatbots and artificial intelligence, but the software alone It can also act as a therapeutic agent, and is a software embedded in a hardware medical device. The product may also serve as a therapeutic agent.

[0032] As used herein, the term "computer" includes any of a variety of devices capable of performing computations. For example, computers are desktop PCs and notebooks. In addition, smartphones, tablet PCs, cellular phones, Cellular phone, PCS phone (Per sonal Communication Service phone), synchronous / asynchronous Model IMT-2000(International Mobile Telecommu) nication-2000) mobile terminal, Palm PC (Palm Personal Computer computer), personal digital assistant (PDA; Personal Digital Assistant Also, the computer may be a head-mounted display device. The head-mounted display device itself can be a computing device. The computer is connected to the head-mounted display device by wire or wirelessly. a computing device configured to receive a head-mounted display; This includes providing images to a head-mounted display. It is a computing device itself that performs the process from generating to providing images. The computer may also be a server computer that receives information from clients. Hereinafter, in this specification, a computer will be referred to as a device, a terminal, or a client. It is also possible to do so.

[0033] In this specification, the term "head-mounted display device" refers to a device that is mounted on the user's (patient's) eyes. This means a device that provides images (stimuli) for exploring and training retinal areas. for exploring and training preferred retinal regions in two and three dimensions (virtual reality, VR) and when performed in three dimensions, uses a "head-mounted display device." "Head-mounted display device" refers to a device that is mounted on a computer (e.g., a PC or a smartphone). It may be a device used in connection with a smartphone or a device that includes computing capabilities. do.

[0034] The "screen" provided to the user (patient) in this specification is a two-dimensional screen. It includes a separate display screen and is a headset worn by the user when performing 3D training. This includes screens on mounted display devices.

[0035] In this specification, the term "device" refers to a variety of devices that can perform computations and provide results to users. For example, the device may be in the form of a computer or a mobile terminal. The computer can be in the form of a server that receives requests from clients and processes information. The computer may also be a sequencing device that performs sequencing. The mobile terminals include mobile phones, smartphones, PDAs, sonal digital assistants), PMP(portable mu Timedia player), navigation, laptop, slate PC ( slate PC, tablet PC, ultrabook abook), wearable devices (e.g., smart Smartwatch, smart glass, H It can include a head mounted display (MD), etc.

[0036] The term "stimulus providing device" as used herein refers to a monitor that provides 2D stimuli to patients with visual field damage. It is a display device in the form of a tablet, or worn by patients with visual field damage to provide virtual reality (AR, V) Virtual reality devices (EX, HMD, GLA, etc.) that provide 3D form stimuli based on VR, XR, etc. SS, etc.

[0037] In this specification, a "patient with visual field damage" refers to a patient with visual acuity and visual acuity in a specific area of ​​the overall visual field. Patients who have lost or damaged at least one of their cognitive abilities and are unable to perceive things in a normal way For example, loss of central vision can result in loss of vision in the central visual field, and peripheral vision can result in loss of vision in the peripheral visual field. This may include patients with macular degeneration or glaucoma who must perceive things through vision. do.

[0038] As used herein, "stimulus" refers to the visual stimulus (gabor) provided to a patient with visual field damage. Through various types of visual stimuli, the preferred retinal areas of patients with visual field damage can be explored and explored. The "stimuli" can be in two-dimensional form, or in three-dimensional form. It can also be in the form of

[0039] The following describes a method for detecting a preferred retinal region in a patient with visual field damage, with reference to FIGS. 1 to 5. Explain concretely.

[0040] FIG. 1 is a block diagram of an apparatus for locating a preferred retinal region in a patient with visual field damage according to an embodiment of the present invention. do.

[0041] FIG. 2 is a flowchart illustrating a method for detecting a preferred retinal region of a patient with visual field damage according to an embodiment of the present invention. .

[0042] FIG. 3 is a diagram illustrating the preferred retinal region of a patient with visual field damage according to an embodiment of the present invention.

[0043] 4 and 5 illustrate a method for analyzing two-dimensional coordinates according to head movement according to an embodiment of the present invention. This is an explanatory diagram.

[0044] Referring to FIG. 1, a preferred retinal region detection device 10 ( The preferred retinal region searching device (hereinafter referred to as the preferred retinal region searching device) includes a processor 11, a communication unit 12, and a memory 13.

[0045] However, in some embodiments, the preferred retinal location device 10 may include components other than those shown in FIG. It may also contain fewer or more components.

[0046] For example, the preferred retinal region search device 10 receives various control signals from the user / administrator of the device. The apparatus may further include an input / output unit for outputting the results.

[0047] The communication unit 12 provides a stimulus to the visual field damage patient through the stimulus providing device, and A response to the stimulus can be received from the visual field damage patient via a delivery device.

[0048] The visual field damage patient uses (more specifically, wears) the stimulus providing device to The displayed stimuli can be viewed and responses to the stimuli can be entered.

[0049] The memory 13 stores the response to the stimulus and the visual field damage patient information obtained through the communication unit 12. Stores the results of performing the subject's preferred retinal location method.

[0050] In addition, the memory 13 stores a memory for performing the method for searching for a preferred retinal site of a visual field damaged patient. It stores various command words, algorithms, etc.

[0051] The processor 11 controls the configuration within the preferred retinal site searching device 10 .

[0052] The preferred retinal region searching device 10 according to the embodiment of the present invention is configured by a computer and an information processing device. The system can be configured by a preferred retinal site search server.

[0053] Hereinafter, with reference to FIG. 2, the preferred retinal region location device 10 according to the embodiment of the present invention will be described. A method for searching for preferred retinal sites in injured patients is described in detail.

[0054] A stimulus providing device that links with the preferred retinal region searching device 10 through a communication unit 12. A first stimulus can be provided to the visual field damage patient through the above (S110).

[0055] The preferred retinal area search device 10 receives the visual information from the stimulus providing device through the communication unit 12. A response to the first stimulus can be received from the injured patient (S120).

[0056] If the response is correct, the processor 11 of the preferred retinal site searching device 10 The visual field damage patient's head movements in response to stimuli can be analyzed (S130).

[0057] The processor 11 of the preferred retinal site searching device 10 selects the preferred retinal site based on the analyzed result. The preferred retinal area can be identified (S140).

[0058] Here, the stimulus providing device and the preferred retinal site searching device 10 are connected to each other by wire or wirelessly. Alternatively, the stimulus providing device and the preferred retinal location device 10 may be implemented as separate devices. It can be realized as an integrated device.

[0059] Here, the first stimulus is displayed in the center of the screen of the stimulus providing device in either a horizontal or vertical orientation. This may include, but is not limited to, behavioral tasks that require judgment on the first The stimulation was provided in various forms as a behavioral task to explore the preferred retinal sites of the visual field damaged patients. We can provide it.

[0060] More specifically, the first stimulus is presented using two line segments intersecting the center of the screen of the stimulus providing device. The visual field damage patient was presented with the image in the center of the screen while the patient was trying to fixate their eyes on the center of the screen. The task was to find the first stimulus and determine whether it was horizontal or vertical. could be.

[0061] Referring to Figure 3, patients with visual field damage have impaired central vision and a preference network for specific positions within the peripheral vision. The preferred retinal area is determined by the patient's preferred retinal region (PRL). Because each patient's preferred retinal area varies, it is important to accurately identify the location of each patient's preferred retinal area. is.

[0062] The visual field damage patient has central vision damage (absolute scotoma), so the first image presented on the screen is The patient moves their head to search for the stimulus, and the movement of their head is used to identify the patient's preferred retinal area. can be identified.

[0063] More specifically, the processor 11 performs a step of detecting the head movement of the visual field damaged patient at an initial position of the head. The changed head position can then be analyzed in two-dimensional coordinates.

[0064] Here, the initial position is determined by using two lines that intersect the center of the screen of the stimulus providing device. This may refer to the head position when a visual field damaged patient's gaze is fixed on the center of the screen.

[0065] The processor 11 uses a gyroscope built into the stimulus providing device to determine the field of view. The movement results of the injured patient's head (neck) were converted into spatial coordinates and rotated from the initial position. It can output the two-dimensional coordinates of the position.

[0066] Processor 11 determines whether a visual field damage patient uses head movement to appropriately use their preferred retinal site. Only if the judgement is made (i.e., only if the response to the first stimulus is correct), The head movements of the visual field damaged patient when the answer is received can be used for analysis.

[0067] In step S110, the processor 11 applies the first stimulus until the preset condition is met. Can be offered repeatedly.

[0068] In step S120, the processor 11 performs a step of: Multiple responses to this can be received.

[0069] Here, the pre-set condition is that the minimum number of response data for data analysis has been collected. The determination may be whether the first stimulus has been provided a maximum number of times or whether the first stimulus has been provided a maximum number of times.

[0070] That is, the processor 11 repeatedly provides a first stimulus to the visual field damage patient and receives the first stimulus from the patient. If the number of received correct response data reaches the minimum number, the first stimulus is provided to the patient. Alternatively, the processor 11 may terminate the first stimulus being repeatedly presented to the visual field damage patient. When the number of times that the first stimulus has been provided to the patient reaches the maximum number, the first stimulus is provided to the patient. You can end the offer.

[0071] In step S130, the processor 11 performs a step of and classifying the results into one or more clusters, and then performing the above-mentioned This is expected to be the preferred retinal site in patients with visual field damage.

[0072] In step S140, the processor 11 performs a principal component analysis on the one cluster. The preferred retinal location of the visual field damaged patient can be identified.

[0073] The processor 11 performs density-based clustering. atial clouding of applications with noise, Using DBSAN, the results of the 2D coordinates of the movement at the time when the patient answered correctly were The results can be analyzed in real time.

[0074] Referring to FIG. 4, the processor 11 determines whether or not each two-dimensional coordinate is spatially adjacent. The algorithm classifies the data into one or more clusters, and the data that are not classified into a cluster are Information can be classified as an outlier.

[0075] In this way, the area corresponding to the clustering results for the 2D coordinates is the area of ​​the visual field damage patient. The visual field is formed by one or more clusters in a single form, corresponding to the area of ​​the predicted preferred retinal region. Damaged patients have well-localized preferred retinal sites. It can be shown that

[0076] Referring to FIG. 5, the processor 11 performs the following for each cluster analyzed in step S130: Principal component analysis (PCA) Then, the line segments (eigenvalues, eigenvectors) that best represent the relevant cluster are extracted from the principal component analysis. The extracted line segments are then combined with the average two-dimensional coordinates of the clusters to form the preference network of the visual field damage patient. It can be used as an element of a training stimulus sequence that can produce optimal effects on membrane sites.

[0077] In this way, the present invention provides a visual stimulus provided by a stimulus providing device using a gyroscope. The head movement of the visual field damage patient corresponding to the first stimulus was measured, and the movement of the visual field damage patient due to the stimulus was measured. By analyzing the retinal area, the preferred retinal region (PRL) of patients with visual field damage can be identified.

[0078] The preferred retinal regions identified in this way are responsible for the visual acuity and visual perception of the visual field damaged patient. At least one of the stimulations can be targeted for training and a second stimulation can be provided. wherein the second stimulus is provided to the preferred retinal location of the visual field damage patient in a collinear arrangement. This includes training tasks using target and peripheral stimuli. Ming will be discussed later.

[0079] That is, using the preferred retinal area identified through steps S110 to S140, , the operations of steps S210 and S220 described below can be performed.

[0080] The following describes a method for training a preferred retinal region for a visual field damaged patient with reference to FIGS. 6 to 8. Explain concretely.

[0081] FIG. 6 is a block diagram of a preferred retinal region training device for a visual field damage patient according to an embodiment of the present invention. do.

[0082] FIG. 7 is a flowchart illustrating a preferred retinal region training method for a visual field damage patient according to an embodiment of the present invention. .

[0083] FIG. 8 is a diagram illustrating central fixation training according to an embodiment of the present invention.

[0084] Referring to FIG. 6, a preferred retinal region training device 20 ( The preferred retinal area training device (hereinafter referred to as the preferred retinal area training device) includes a processor 21, a communication unit 22, and a memory 23.

[0085] However, in some embodiments, the preferred retinal location training device 20 may include more components than those shown in FIG. It may contain fewer or more components.

[0086] For example, the preferred retinal area training device 20 receives various control signals from the device user / administrator. The apparatus may further include an input / output unit for outputting the results.

[0087] The communication unit 22 provides a stimulus to the visual field damage patient through the stimulus providing device, and A response to the stimulus can be received from the visual field damage patient via a delivery device.

[0088] The visual field damage patient uses (more specifically, wears) the stimulus providing device to The displayed stimuli can be viewed and responses to the stimuli can be entered.

[0089] The memory 23 stores the response to the stimulus and the visual field damage patient information obtained through the communication unit 22. The results of performing the subject's preferred retinal location training method are stored.

[0090] In addition, the memory 23 stores various information for carrying out the preferred retinal area training method for visual field damage patients. It stores seed commands, algorithms, etc.

[0091] The processor 21 controls the configuration within the preferred retinal site training device 20 .

[0092] The preferred retinal region training device 20 according to the embodiment of the present invention is configured by a computer and an information processing device. The preferred retinal site training server can be configured as a preferred retinal site training server.

[0093] Hereinafter, with reference to FIG. 7, the preferred retinal area training device 20 according to the embodiment of the present invention will be described. A method for training preferred retinal sites in injured patients is described in detail.

[0094] The processor 21 of the preferred retinal region training device 20 is configured to detect the central fixation of the visual field damaged patient. Training related to the physiotherapy (physical fixation) can be conducted (S210).

[0095] The processor 21 of the preferred retinal area training device 20 calculates the strength of the preferred retinal area of ​​the visual field damaged patient. Training related to the process can be conducted (S220).

[0096] Here, the preferred retinal region is detected by a stimulus providing device linked to the device. A search method is used to analyze the head movement of the visual field damaged patient in response to a first stimulus provided to the patient. Here, the first stimulus can be specified by displaying it in the center of the screen of the stimulus providing device. The behavioral tasks may include tasks requiring judgment as to whether the position is horizontal or vertical. This is a duplicate of what was said above, so I will omit it.

[0097] As mentioned above, visual field damage patients perform eccentric vision through their preferred retinal region (PRL). However, this requires the patient to tilt their head to look at the image, which can cause the patient to be concerned about the gaze of others. Therefore, the steps S110 to S140 are performed in a manner that is particularly convenient. The preferred retinal area is determined through training in steps S210 and S220. By developing the visual field, patients can be able to recognize objects in their peripheral vision. .

[0098] More specifically, in step S210, the processor 21 A diagonal line is displayed across the visual field of a visual field-damaged patient, and the visual field-damaged patient is asked to predict the intersection of the diagonal line. You can ask them to gaze at the desired spot.

[0099] Referring to FIG. 8, a patient with impaired visual field is given a stimulus through a stimulus providing device for central fixation. When presented with a virtual diagonal line (visual queue) across the patient's field of view, The patient can fixate on the point where the diagonal lines intersect. This allows the patient to focus on the center of the gaze. Cut.

[0100] Then, in step S220, the processor 21 transmits the preference through the stimulus providing device. A second stimulus can be provided to a retinal location and the visual field damage patient can be required to detect the second stimulus. Cut.

[0101] Here, the second stimulus is presented to the preferred retinal site in a collinear arrangement with the target stimulus. This may include training tasks using peripheral stimulation.

[0102] More specifically, the second stimulus is a collinear array of stimuli presented to the visual field damage patient's preferred retinal site. Temporal two-alternative task using target and peripheral stimuli tive forced choice (temporal 2-AFC) task, The participants were asked to respond to which screen the target stimulus, located in the center of the row, was presented alongside. It can be something like this.

[0103] Here, a collinear arrangement is defined as the angle between the target stimulus and the surrounding stimulus, which are aligned in a line, and the angle between the target stimulus and the surrounding stimulus. This may refer to a stimulation arrangement in which the angles of the sections are the same.

[0104] In the case of collinearly arranged stimuli, it is difficult to detect the target stimulus when the distance between stimuli is close, and Lateral interaction, in which the target stimulus is easier to detect when it is farther away, n), which is the human receptive field This can be understood as a result of the size of the

[0105] The inter-stimulus distance (λ) and spatial frequency (σ) of the second stimulus provided for training Systematic manipulation ultimately changes the size of the acquisition field, enhancing the transferability of visual-perceptual learning effects. Transfer can be achieved by exceeding the detection / discrimination sensitivity of the second stimulus after training. Furthermore, the effect also affects higher-level visual processing (e.g., reading ability). Mean and training poor reading ability in patients with visual field damage characterized by weak peripheral vision It can be improved later.

[0106] Thus, the present invention enhances the preferred retinal region in patients with visual field damage under central fixation guidance. The device continuously provides a second stimulus that can induce sustained stimulation in a specific area of ​​the patient's peripheral vision. This allows the patient to develop a preferred retinal area, which can be used in real life. This can enhance peripheral vision and improve the efficiency of treatment.

[0107] In the above, the stimulus providing device that provides the first stimulus and the stimulus providing device that provides the second stimulus are the same. However, depending on the embodiment, the two devices may be different from each other. That is, the stimulus providing device that provides the first stimulus is the preferred retinal site location device 10 that provides the preferred retinal site. When performing the location search method, various data, signals and information are transmitted to the preferred retinal location search device 10. The stimulus providing device transmits and receives information and provides the second stimulus. When performing the preferred retinal area training method, the device is connected to the preferred retinal area training device 20 and collects various data and signals. The preferred retinal site search method can be performed by transmitting and receiving signals and information. The search results can be transmitted and received between the preferred retinal area search device 10 and the preferred retinal area training device 20. do.

[0108] In the following, referring to Figures 9 and 10, we will explore and train the preferred retinal areas of patients with visual field damage. This method will be explained in detail.

[0109] FIG. 9 is a block diagram of a preferred retinal region search and training device for visual field damage patients according to an embodiment of the present invention. This is a diagram.

[0110] FIG. 10 shows a method for searching and training preferred retinal regions of a visual field damaged patient according to an embodiment of the present invention. This is a prologue.

[0111] Referring to FIG. 9, a preferred retinal region search and training device for a visual field damage patient according to an embodiment of the present invention is shown. The device 30 (hereinafter referred to as the preferred retinal region searching and training device) includes a processor 31, a communication unit 32, and a memory. Includes Mori33.

[0112] However, in some embodiments, the preferred retinal region searching and training device 30 may have the configuration shown in FIG. It may contain fewer or more components than the components.

[0113] For example, the preferred retinal region searching and training device 30 receives various control signals from the device user / administrator. The processing unit may further include an input / output unit for receiving a signal and outputting a result.

[0114] The communication unit 32 provides a stimulus to the visual field damage patient through the stimulus providing device, and A response to the stimulus can be received from the visual field damage patient via a delivery device.

[0115] The visual field damage patient uses (more specifically, wears) the stimulus providing device to The displayed stimuli can be viewed and responses to the stimuli can be entered.

[0116] The memory 33 stores the response to the stimulus and the visual field damage patient information obtained through the communication unit 32. The results of performing the subject's preferred retinal location search and training method are stored.

[0117] In addition, the memory 33 stores a method for searching and training the preferred retinal region of the visual field damaged patient. It stores various commands and algorithms for

[0118] The processor 31 controls the configuration within the preferred retinal location searching and training device 30 .

[0119] The preferred retinal region searching and training device 30 according to the embodiment of the present invention is a computer, information processing The present invention may comprise a device, preferably a preferred retinal location search and training server.

[0120] Hereinafter, referring to FIG. 10, the preferred retinal region searching and training device 3 according to the embodiment of the present invention will be described. This paper provides a detailed description of how 0 explores and trains preferred retinal sites in patients with visual field damage.

[0121] A preferred retinal region search and training device 30 is connected to the device 30 through a communication unit 32. A first stimulus may be provided to the visual field damage patient through a providing device (S310).

[0122] The preferred retinal region searching and training device 30 communicates with the stimulus providing device through the communication unit 32. A response to the first stimulus can be received from the visual field damage patient (S320).

[0123] If the response is correct, the processor 31 of the preferred retinal location searching and training device 30 The visual field injury patient's head movement in response to the first stimulus can be analyzed (S330).

[0124] The processor 31 of the preferred retinal site searching and training device 30 determines the preferred retinal site based on the analyzed results. The preferred retinal region can be identified (S340).

[0125] The processor 31 of the preferred retinal site searching and training device 30 detects the central fixation of the visual field damaged patient. (Central fixation) related training can be conducted (S350).

[0126] The processor 31 of the preferred retinal area searching and training device 30 detects the preferred retinal area of ​​the visual field damaged patient. You can perform training related to strengthening parts of the body (S360).

[0127] Here, steps S310 to S340 are the same as those described above with reference to FIGS. Steps S110 to S140 are the same as steps S350 and S360. 6 to 8, so step S A detailed description of steps S310 to S360 will be omitted.

[0128] That is, the preferred retinal area searching and training device 30 is a preferred retinal area searching device 10 and a preferred retinal area In this case, the first stimulus providing device and the second stimulus providing device can perform the functions of the position training device 20. The stimulus delivery devices that provide the two stimuli may be identical.

[0129] The method according to the embodiment of the present invention described above is executed by a server, which is hardware. The software can be realized as a program (or application) and stored on a medium. The server is the preferred retinal area search server, the preferred retinal area training server, and the preferred retinal area search server. The server may be at least one of a search server and a training server.

[0130] The above-mentioned program is executed by the computer by reading the program. To execute the implemented method, the processor (CPU) of the computer C, C++, JAVA (registered) readable through the computer device interface It includes code coded in computer languages ​​such as trademarks, machine language, etc. Such code may be a function that defines the functionality required to perform the method. and a functional code relating to the The execution procedure required for the processor of the computer to execute the function in a predetermined order and associated control code, and such code may be used to control the functionality of the Additional information and media necessary for the processor of a computer to execute said computer The memory reference function for the location (address) in internal or external memory that should be referenced. Further, the computer processor may further include a series of codes for performing the functions. To execute the program, you need to connect it to any other computer or server remotely. When communication is required, the code uses the computer's communication module to communicate with any remote How should it communicate with other computers and servers? What information or messages should be sent during communication? It may further include communication-related code for whether media should be sent or received.

[0131] The storage medium is a register, cache, memory, etc. that stores data for a short time. It is not a medium that stores data semi-permanently and can be read by a device. Specifically, examples of the storage medium include ROM and RAM. , CD-ROM, magnetic tape, floppy disk, optical data storage device, etc. That is, the program is not limited to the above. The information may be stored on various recording media on the server or on various recording media on the user's computer. The medium can be distributed among computer systems connected via a network. and can store computer-readable code in a distributed manner.

[0132] The steps of the methods or algorithms described in connection with the embodiments of the present invention may be implemented in hardware. Whether it is implemented directly or through software modules executed by hardware , and can be realized by combining them. andom Access Memory), ROM(Read Only Memory) , EPROM(Erasable Programmable ROM), EEPROM( Electrically Erasable Programmable ROM), Flash memory, hard disk, removable disk, CD -ROM, or any other form of computer program known in the art to which the present invention pertains. The information may also be permanently present on a data-readable recording medium.

[0133] The embodiments of the present invention have been described above with reference to the accompanying drawings. A person skilled in the art would understand that the present invention can be realized without changing the technical idea or essential features thereof. Therefore, the above-described embodiment can be implemented in the following specific forms. , which should be considered in all respects as illustrative and not restrictive.

Claims

1. A method for searching for a preferred retinal site in a patient with visual field damage, which is performed by an apparatus, comprising: providing a first stimulus to the patient via a stimulus delivery device associated with the device; receiving a response to the first stimulus from the patient through the stimulus providing device; if the response is correct, analyzing the patient's head movements in response to the first stimulus. Floors and Identifying the preferred retinal site based on the analyzed results; Including, The preferred retinal region is determined by training at least one of the patient's visual acuity and visual perception abilities. The method further comprises providing a second stimulus set to a target for the second stimulus.

2. analyzing the patient's head movement, The head position changed by the movement of the head from the initial position of the patient's head is expressed as two-dimensional coordinates. The analysis is carried out using The initial position is determined by positioning the patient using two lines that intersect the center of the screen of the stimulus delivery device. The position of the head is determined when the line of sight of the user is fixed at the center of the screen. The method according to claim 1.

3. providing the first stimulus includes: repeatedly providing the first stimulus until a predetermined condition is met; The step of receiving the response includes: receiving a plurality of responses to each of the plurality of repeatedly provided first stimuli; The method of claim 1, further comprising:

4. analyzing the patient's head movement, Only the correct responses among the plurality of responses are classified into one or more clusters; Predicting the patient's preferred retinal location based on the results classified into one or more clusters.

4. The method according to claim 3, wherein:

5. The step of identifying the preferred retinal site comprises: Identifying the patient's preferred retinal region through principal component analysis of the one cluster.

5. The method of claim 4, wherein

6. The first stimulus requires a judgment as to whether the orientation displayed in the center of the screen is horizontal or vertical. Including behavioral tasks, The second stimulus is a collinear array of target stimuli presented to the patient's preferred retinal location.

3. The method of claim 2, comprising a training task utilizing peripheral stimulation.

7. A method for training a preferred retinal region of a patient with visual field damage, which is performed by a device, comprising: performing training relating to central fixation of the patient; and, conducting training related to strengthening the patient's preferred retinal location; Including, The preferred retinal site is provided to the patient through a stimulus delivery device associated with the device. The method is identified by a search method that analyzes the patient's head movement in response to a first stimulus.

8. The step of performing training related to central fixation includes: A diagonal line is displayed across the patient's visual field through the stimulus providing device, and the patient is asked to 8. The method according to claim 7, wherein the user is required to gaze at a point where the lines of the image are expected to intersect. How to post.

9. The step of performing training related to strengthening the preferred retinal region includes: providing a second stimulus to the preferred retinal location through the stimulus delivery device to the patient; 8. The method of claim 7, further comprising requesting detection of a stimulus.

10. The first stimulus is displayed at the center of the screen of the stimulus providing device in a horizontal or vertical orientation. Includes behavioral tasks that require judgment, The second stimulus comprises a collinear array of target and peripheral stimuli presented to the preferred retinal location.

10. The method of claim 9, including utilizing training tasks.

11. A method for searching for and training a preferred retinal region in a patient with visual field damage, which is carried out by a device, providing a first stimulus to the patient via a stimulus delivery device associated with the device; receiving a response to the first stimulus from the patient through the stimulus providing device; if the response is correct, analyzing the patient's head movements in response to the first stimulus. Floors and Identifying the preferred retinal site based on the analyzed results; performing training relating to central fixation of the patient; and, conducting training related to strengthening the patient's preferred retinal location; A method comprising:

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