WO2021256100A1 - 視野検査装置 - Google Patents

視野検査装置 Download PDF

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Publication number
WO2021256100A1
WO2021256100A1 PCT/JP2021/016860 JP2021016860W WO2021256100A1 WO 2021256100 A1 WO2021256100 A1 WO 2021256100A1 JP 2021016860 W JP2021016860 W JP 2021016860W WO 2021256100 A1 WO2021256100 A1 WO 2021256100A1
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WO
WIPO (PCT)
Prior art keywords
visual field
display
target
unit
visual
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2021/016860
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English (en)
French (fr)
Japanese (ja)
Inventor
輝夫 相原
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Findex Inc
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Findex Inc
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Filing date
Publication date
Application filed by Findex Inc filed Critical Findex Inc
Priority to EP21825524.8A priority Critical patent/EP4166064A4/en
Priority to CN202180040186.1A priority patent/CN115701931A/zh
Publication of WO2021256100A1 publication Critical patent/WO2021256100A1/ja
Priority to US17/937,780 priority patent/US20230023605A1/en
Anticipated expiration legal-status Critical
Priority to US18/173,724 priority patent/US20230190091A1/en
Priority to US18/305,325 priority patent/US20230255477A1/en
Priority to US18/743,015 priority patent/US20240335104A1/en
Ceased legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/02—Subjective types, i.e. testing apparatus requiring the active assistance of the patient
    • A61B3/024—Subjective types, i.e. testing apparatus requiring the active assistance of the patient for determining the visual field, e.g. perimeter types
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/0016—Operational features thereof
    • A61B3/0041—Operational features thereof characterised by display arrangements
    • A61B3/005—Constructional features of the display
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/0091—Fixation targets for viewing direction
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
    • A61B3/113—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for determining or recording eye movement

Definitions

  • the present invention relates to a visual field inspection device.
  • a visual field inspection device for inspecting a visual field has been conventionally provided, and is disclosed in, for example, Patent Document 1 below.
  • an input device such as a button.
  • the input may fail due to unfamiliarity with the operation of the input device or the inability to operate the input device properly due to tension or the like, and the visual field test may not be performed accurately.
  • Patent Document 2 a visual field test that automatically detects the line of sight in the direction the user is looking at by the line-of-sight detection device and automatically determines whether or not the user is visually recognizing the optotype. The device is disclosed.
  • two visual targets a gaze target for returning the line of sight to the center and gaze (fixing), and a measurement target for measuring the visual field, are alternately used. .. Therefore, in the case of a user who has a dark spot near the center of the visual field, there may be a case where the visual field for gaze cannot be visually recognized and the visual field test cannot be performed.
  • the present invention has been made in view of such a problem, and an object of the present invention is to provide a visual field inspection device capable of performing a visual field inspection even by a user having a dark spot near the center of the visual field.
  • the visual field inspection device is a visual field inspection device for inspecting a user's visual field range, in which a display for displaying an optotype and a line of sight of the user are detected and the line of sight of the user is detected.
  • a visual field detection unit that outputs line-of-sight information regarding a direction
  • a visual field determination unit that determines whether or not the user is visually recognizing the target based on the position information of the target and the line-of-sight information, and the target.
  • the visual field display unit that sequentially displays the gaze target and the measurement target as a set on the display, and the gaze target and the measurement target while sequentially displaying the gaze target and the measurement target by the target display unit.
  • the visual field inspection unit is provided with a visual field inspection unit that performs a visual field test by performing a visual field determination of the measurement target by the visual target visual field determination unit, and the display has a right eye display and a left eye display, and the visual field.
  • the inspection unit controls the visual field display unit to display the gaze target on the right eye display or the left eye display opposite to the eye to be inspected, and sets an inspection mode for a central dark point holder. It is characterized by having.
  • the visual field inspection unit is provided with a mode for a central dark point holder, and even a user having a dark spot near the center of the visual field can appropriately perform a visual field inspection.
  • FIG. 1 is a schematic diagram schematically showing a configuration of a visual field inspection device according to an embodiment of the present invention.
  • FIG. 2 is a cross-sectional view of a main part schematically showing the configuration of the HMD according to the embodiment of the present invention.
  • FIG. 3 is a perspective view of a main part schematically showing the configuration of the HMD according to the embodiment of the present invention.
  • FIG. 4 is a diagram showing a display position of a measurement optotype according to an embodiment of the present invention.
  • FIG. 5 is a diagram showing an example of an output screen of a visual field test result according to an embodiment of the present invention.
  • the visual field inspection device 1 allows the user's eyes to see whether or not the user visually recognizes the target optotype displayed on the display device, that is, whether or not the user sees the visual field.
  • a visual field test is performed while automatically detecting and determining the line of sight, which is the direction.
  • the visual field inspection device 1 includes a head-mounted display (HMD) 10, a control device 30, and a communication cable 70 for connecting the HMD 10 and the control device 30.
  • HMD head-mounted display
  • the HMD 10 includes a housing 11 including a belt to be worn on the head of a user who is a subject, a display 13, a convex lens 14, a camera 15, a hot mirror 16, and a near-infrared light emitting unit 18.
  • the line-of-sight detection function for automatically detecting the line of sight in the direction in which the eyes of the user wearing the HMD 10 are looking is provided.
  • the display 13 is a liquid crystal display, and the user's right eye display 13a and left eye display 13b are installed facing each other in front of the left and right eyes.
  • a convex lens 14a for the right eye and a convex lens 14b for the left eye are installed between the display 13 and the user's eye, respectively.
  • the image displayed on the display 13 is visible to the user's eyes via the convex lens 14.
  • the camera 15 is a near-infrared camera that captures the user's eyes, and photographs the user's left and right eyes based on the near-infrared light that is invisible light.
  • a camera for the right eye 15a and a camera for the left eye 15b are installed.
  • hot mirrors 16a and 16b having a multilayer film that reflects near infrared rays and transmits visible light are installed on the left and right sides, respectively. Visible light of the image emitted from the display 13 is transmitted through the hot mirror 16, and invisible light of near infrared rays emitted from the light emitting unit 18 is reflected by the hot mirror 16.
  • the light emitting unit 18 is an LED (IR-LED) that irradiates near infrared rays as lighting for photographing the user's eyes.
  • the light emitting portions 18a and 18b are installed on the left and right sides of the convex lens 14 so as to face the left and right eyes of the user.
  • the camera 15 is installed on the eye side opposite to the display 13 with respect to the hot mirror 16.
  • the near-infrared rays radiated directly from the light emitting unit 18 to the user's eyes are reflected by the user's eyes, then reflected by the hot mirror 16 via the convex lens 14, and reach the camera 15 for imaging.
  • the control device 30 includes an arithmetic unit 60 such as a CPU (Central Processing Unit) for performing various operations, an HDD (Hard Disc Drive) for storing various information, and a RAM (Random) used as a work area for arithmetic processing. It is equipped with a storage device 65 such as Access Memory).
  • arithmetic unit 60 such as a CPU (Central Processing Unit) for performing various operations, an HDD (Hard Disc Drive) for storing various information, and a RAM (Random) used as a work area for arithmetic processing. It is equipped with a storage device 65 such as Access Memory).
  • a storage device 65 such as Access Memory
  • the storage device 65 includes a line-of-sight log storage unit 66 that records line-of-sight information detected by the line-of-sight detection unit 31, which will be described later, and an optotype storage unit 67 that records optotype information to be displayed on the display 13.
  • control device 30 functionally includes a line-of-sight detection unit 31, a visual target display unit 33, a visual field determination unit 40, and a visual field inspection unit 50, and these functions are stored in the arithmetic unit 60. It is realized by executing a predetermined program stored in the device 65.
  • the line-of-sight detection unit 31 detects the direction in which the user is looking, that is, the line of sight, based on the captured image of the user's eyes, which is the output of the camera 15. Specifically, the line-of-sight detection unit 31 outputs two declinations ( ⁇ , ⁇ ), which are polar coordinates (spherical coordinates), as line-of-sight information (line-of-sight angle) as line-of-sight information indicating the direction of the line of sight.
  • the polar coordinate system is set in the calibration before the start of visual field measurement. Specifically, an image in which a point designated in advance is stared, the image is associated with the origin of polar coordinates (center of the eyeball), and then a point in another designated polar coordinate is stared is stored. By obtaining the correlation between the position of the center of the pupil captured in each image and the polar coordinates obtained by staring at each image, the line-of-sight angle in polar coordinates can be obtained from the image.
  • This line-of-sight detection is performed independently for the right eye and the left eye, and the line-of-sight information is recorded in the line-of-sight log storage unit 66 in chronological order approximately every 15 ms.
  • the line-of-sight information recorded in the line-of-sight log storage unit 66 includes two declinations ( ⁇ , ⁇ ) which are the above-mentioned polar coordinates (spherical coordinates).
  • the optotype display unit 33 sequentially displays optotypes of a predetermined size on a display 13 at a predetermined location based on the optotype information recorded in the optotype storage unit 67.
  • there are two target targets a gaze target for returning the line of sight to the vicinity of the center and gaze (fixing), and a measurement target for measuring the visual field.
  • the optotype storage unit 67 records one measurement optotype and one gaze optotype as one optotype set.
  • the optotype information stored in the optotype storage unit 67 two declinations ( ⁇ , ⁇ ) in the polar coordinates are used as the position information indicating the display position of each optotype. These two declinations determine the optotype angle, which represents the position of the optotype in terms of angle.
  • FIG. 4 shows the display position of the optotype for measurement.
  • 76 points are arranged at the grid-like intersections and 13 points are intensively arranged near the blind spots, for measurement at a total of 89 points.
  • the optotype is displayed (Humfrey visual field test, center 30-2).
  • the visual field inspection method can be appropriately changed, and the position of the optotype displayed on the display 13 is also appropriately changed depending on the visual field inspection method.
  • not all the measurement targets are displayed at the coordinate positions shown in FIG. 4, but all the measurement targets are displayed at a predetermined viewing angle of the display 13 (18 ° in the present embodiment).
  • the display position is adjusted as appropriate so that it is displayed inside. These adjustments are performed in advance before the measurement, and the adjusted position is recorded in the optotype storage unit 67 as optotype information.
  • the gaze target is not fixed to the center of the display 13, but is positioned according to the adjustment of the measurement target (the position of the same viewing angle as before the adjustment with respect to the adjusted measurement target). Is displayed in.
  • the measurement target is displayed at a position away from the center of the display 13, and the accuracy of the line-of-sight detection by the line-of-sight detection unit 31 decreases as the line-of-sight angle with respect to the screen of the display 13 increases.
  • the optotype is displayed on the display 13 so as to be located within a predetermined viewing angle (18 ° in this embodiment) from the center of the optical system.
  • the measurement target when the measurement target is located outside the range of the viewing angle of 18 ° from the center of the optical system on the display 13, the measurement target is slid to a position within 18 °. And adjust so that it is displayed on the display 13. At this time, the previous gaze target is also slid in the same direction as the measurement target by the same distance so that the line-of-sight movement angle from the gaze target immediately before the same set to the measurement target does not change. ..
  • the line of sight can be detected stably and with high accuracy without deteriorating the detection accuracy of the line of sight detection unit 31. It can be cut.
  • the visibility determination unit 40 includes a collision determination unit 41, and the user visually recognizes the optotype based on the line of sight detected by the line-of-sight detection unit 31 and the coordinates of the measurement optotype displayed on the display 13. Judge whether or not.
  • the collision determination unit 41 allows the user to visually recognize the optotype depending on whether or not the extension line in the line-of-sight vector direction detected by the line-of-sight detection unit 31 physically collides with the target optotype on a predetermined coordinate system. Judge whether or not.
  • the line-of-sight angle detected by the line-of-sight detection unit 31 is compared with the angle of view representing the position of the target target, and if the angle difference is within 2 °, a collision occurs. It is determined that the image is visually recognized.
  • the visual field inspection unit 50 controls the visual target display unit 33 and the visual field determination unit 40, and the visual field inspection unit 33 sequentially displays a set of the gaze target and the measurement target at a predetermined position while performing a visual field determination.
  • the visual field test of the user is performed by sequentially performing the visual field determination of each optotype by the unit 40.
  • the optotype display unit 33 displays the optotype only on the display 13a for the right eye, and when the visual field test of the left eye is performed, the optotype display unit 33. 33 displays the optotype only on the left eye display 13b.
  • the visual field inspection unit 50 includes an inspection unit 51 for a central scotoma holder.
  • the inspection unit 51 for a central scotoma holder performs a visual field test in a mode for a central dark point holder for performing a visual field test for a user who holds a central scotoma near the center of either the left or right eye. Run.
  • the gaze target for returning the line of sight to the vicinity of the center is displayed near the center, the user who holds the central scotoma may not be able to see the gaze target. I can't do it.
  • the central scotoma holder inspection unit 51 inspects the gaze target eye among the gaze target and the measurement target visual target set. It is displayed on the display 13 for the eyes on the opposite side every time.
  • the optotype display unit 33 displays all the gaze targets on the left eye display 13b and measures the visual field. It is controlled by the central scotoma holder inspection unit 51 so that all the visual targets are displayed on the right eye display 13a.
  • the gaze target is displayed on the display 13 for the eye opposite to the eye to be inspected, and vice versa.
  • the eye for gaze visually recognized by the eye on the side
  • the line of sight of the eye to be inspected is also returned to the center. Therefore, for the user who holds the central scotoma, the visual field inspection can be performed by providing the mode for the central scotoma holder by the inspection unit 51 for the central scotoma holder instead of the normal mode.
  • the central scotoma holder inspection unit 51 when the gaze target is displayed on the display 13 for the opposite eye, the central scotoma holder inspection unit 51 is brighter than usual and brighter than usual, and is larger than usual.
  • the optotype display unit 33 is controlled so as to display the gaze optotype.
  • the normal optotype is displayed on the display 13 as a circle with a brightness of 413 cd / m 2 and a size of 4 mm 2 , but the gaze target in the inspection mode for the central dark point holder has a brightness of 826 cd /. It is displayed as m 2 and size 16 mm 2, with a brightness ratio of 2 times and an area ratio of 4 times (radius ratio of 2 times).
  • the size of the optotype is represented by the size when it is displayed on the screen 30 cm away from the eye.
  • a user who has a central scotoma in one eye may also have reduced sensitivity in the opposite eye, thus in this way, in the central scotoma test mode, with respect to the opposite eye.
  • the brightness and size of the gaze target displayed on the eye opposite to the eye to be inspected can be changed as appropriate, and may be the same as usual, but the sensitivity of the eye of the central scotoma holder is reduced. Considering the reliability of the inspection, it is desirable that the brightness and size of the gaze target are both 1.5 to 3 times higher than usual.
  • the configuration of the visual field inspection device 1 has been described above, but subsequently, the visual field inspection method by the visual field inspection device 1 will be described.
  • the visual field inspection device 1 executes a visual field inspection by executing a visual field inspection program stored in the storage device 65. First, a normal visual field test in the normal mode will be described.
  • the HMD 10 is set on the head of the user who is the subject, and the subject is instructed that "the optotypes are sequentially displayed on the display 13, so always look at the optotypes."
  • calibration is performed first, and adjustment is made so that the line-of-sight detection unit 31 can correctly detect the line of sight of the subject.
  • the optotype display unit 33 displays the optotype on the display 13.
  • the optotype display unit 33 randomly sets the optotype for the right eye examination and the optotype for the left eye examination on the display 13 based on the optotype information recorded in the optotype storage unit 67. indicate. That is, in the present embodiment, the visual field test of the right eye and the visual field test of the left eye are performed at the same time.
  • the optotype for the left eye is displayed only on the display 13b for the left eye and the optotype for the right eye is displayed only on the display 13a for the right eye, the optotype for the right eye or the left eye is displayed during the examination. Only one optotype will be displayed on the right eye display 13a or the left eye display 13b.
  • the gaze optotype and the measurement optotype are recorded as a set of optotypes, and the optotype display unit 33 displays the measurement optotype before displaying each measurement optotype. Display the same set of gaze optotypes as the marker, and then display the measurement optotype. That is, the optotype display unit 33 alternately displays the gaze optotype and the measurement optotype on the display 13.
  • the optotype display unit 33 switches to the next optotype and displays it when it is determined that the displayed optotype is visually recognized by the visual recognition determination unit 40. If the optotype is not visually recognized even after 2.5 seconds have passed, a time-out is set, and it is determined that the optotype is not visually recognized, and the next optotype set is displayed. If the target that is recognized as a time-out is a measurement target, the measurement target is subject to remeasurement. However, depending on the end conditions for each inspection pattern, it may not be subject to remeasurement.
  • the line-of-sight detection unit 31 detects the subject's line of sight
  • the visual recognition determination unit 40 is the line of sight that is the output of the line-of-sight detection unit 31. Based on the information, it is determined whether or not the subject was visually recognizing each optotype.
  • the visual recognition determination unit 40 has a collision determination unit 41 based on the line-of-sight information sequentially output from the line-of-sight detection unit 31 after the display of each optotype with respect to the gaze target and the measurement target that are sequentially and alternately displayed. The visual judgment is sequentially performed by.
  • the collision determination unit 41 determines that the target is not recognized, and the target is a measurement target, the visual recognition determination unit 40 sets the measurement target as a remeasurement target. do.
  • the visual recognition determination unit 40 continues to perform the visual recognition determination for the measurement optotypes to be remeasured.
  • the target set to be remeasured is also randomly displayed on the display 13 in sequence to make a visual judgment.
  • the visual field inspection unit 50 determined that they were dark spots, and for the measurement optotypes that were determined to be visually recognized by remeasurement, It will be measured again.
  • the visual field inspection unit 50 has determined that the visual field inspection unit 50 is not a dark point for the measurement optotype that is determined to be visually recognized even in the third measurement, and the measurement optotype that is determined not to be visually recognized in the third measurement is , The visual field inspection unit 50 recognizes that it is a dark spot.
  • the collision determination unit 41 collides after displaying the measurement optotype, that is, the time from displaying the measurement optotype until the subject visually recognizes it, that is, displaying the measurement optotype.
  • the time until the line of sight is detected is recorded in the storage device 65 as the reaction time.
  • the collision determination unit 41 accidentally catches the next target at the moment when the reaction time is too early and the target is switched, or the previous target and the next visual Since it is possible that the line of sight and the target accidentally collide with each other at the moment when the target is switched due to the proximity of the target, the measurement target is remeasured as an invalid visual judgment.
  • the collision determination unit 41 treats the measurement target as a remeasurement target, assuming that the reaction takes too long.
  • the optotype for measurement is the target of remeasurement.
  • the visual field inspection unit 50 displays the visual field inspection result based on the visual field inspection result by the visual field inspection unit 40 as a predetermined display device (not shown).
  • FIG. 5 is a diagram showing an example of an output screen of the visual field test result.
  • FIG. 5A shows the reaction time in each measurement target excluding the blind spot in height, and the target to be remeasured is displayed with the measurement results of a plurality of times side by side.
  • FIG. 5B shows the location of the measurement optotype recognized as a dark spot, and the measurement optotype recognized as a dark spot is indicated by a large circle.
  • FIG. 5 (c) shows both the reaction time with each measurement target and the place recognized as a dark spot in color and shade, and the vicinity of the target with a short reaction time is displayed in light green and reacts. As the time becomes longer, it is displayed in dark green and the vicinity of the dark point is displayed in red.
  • the reaction time of the optotype for measurement is displayed in association with the visual field angle
  • the horizontal axis is the visual field angle
  • the vertical axis is the reaction time.
  • the visual field inspection in the normal mode has been described above.
  • the visual field inspection method in the central scotoma holder mode by the central scotoma holder inspection unit 51 will be described focusing on the parts different from the normal mode.
  • the display method of the gaze target is different from the above-mentioned normal mode.
  • the visual field inspection unit 50 inspects the central dark point holder's inspection unit 51 in the inspection of the eye on the side having the central dark point of the user.
  • the optotype display unit 33 is controlled so that all the optotypes for gaze are displayed on the display 13 of the eye opposite to the eye to be inspected.
  • a user who has a central scotoma in the right eye can use the left eye to view the gaze target because all the gaze targets are displayed on the left eye display 13b in the visual field test of the right eye.
  • the line of sight of the right eye can be returned to the vicinity of the center, and the visual field test can be appropriately performed by the visual field for measurement displayed on the display 13a for the right eye.
  • both the gaze target and the measurement target are displayed on the left eye display 13b as in the normal mode.
  • the visual field display unit 33 sequentially displays the visual field on the display 13, the visual field detection unit 31 detects the subject's line of sight, and the visual field determination unit 40 is the output of the visual field detection unit 31.
  • the visual field inspection unit 50 outputs the visual field inspection result based on the visual field inspection result by the visual field inspection unit 40, as in the above normal mode.
  • the visual field inspection unit 50 includes an inspection unit 51 for a gaze scotoma holder and executes a mode for a central scotoma holder. This makes it possible to appropriately perform a visual field test for a user who has a central scotoma in only one eye.
  • a non-contact type line-of-sight detection unit that estimates the gaze point of the eye from the near-infrared corneal reflex pattern is adopted, but if the user's line of sight can be detected, the contact-type line-of-sight detection unit is used.
  • Etc. other types of line-of-sight detection units can be adopted as appropriate.
  • the visual recognition determination unit allows the user to determine the optotype depending on whether or not the extension line in the line-of-sight direction detected by the line-of-sight detection unit physically collides with the target optotype by the collision determination unit. Although it is determined whether or not it is visually recognized, it may be determined visually by a logical determination method from the line-of-sight information log.
  • the polar coordinate system is adopted as the line of sight and the position information of the line of sight, but a three-dimensional Cartesian coordinate system may be adopted.
  • an independent display is adopted as the display for the left eye and the display for the right eye, but one large display may be divided into the areas for the right eye and the area for the left eye.
  • Visual field inspection device 10 HMD 11 Housing 13 Display 14 Convex lens 15 Camera 16 Hot mirror 18 Light emitting unit 30 Control device 31 Line-of-sight detection unit 33 Visual target display unit 40 Visual-view detection unit 41 Collision detection unit 50 Visual-field inspection unit 51 Central dark point holder inspection unit 60 Arithmetic Device 65 Storage device 66 Line-of-sight log storage unit 67 Visual target storage unit 70 Cable

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PCT/JP2021/016860 2020-06-16 2021-04-27 視野検査装置 Ceased WO2021256100A1 (ja)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP21825524.8A EP4166064A4 (en) 2020-06-16 2021-04-27 FIELD OF VIEW TESTING DEVICE
CN202180040186.1A CN115701931A (zh) 2020-06-16 2021-04-27 视野检查装置
US17/937,780 US20230023605A1 (en) 2020-06-16 2022-10-04 Visual Field Testing Apparatus
US18/173,724 US20230190091A1 (en) 2020-06-16 2023-02-23 Visibility Determination System and Visual Field Test Apparatus
US18/305,325 US20230255477A1 (en) 2020-06-16 2023-04-22 Characteristic Inspection System
US18/743,015 US20240335104A1 (en) 2020-06-16 2024-06-13 Visual Field Testing Apparatus

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JP2020103472A JP2021194289A (ja) 2020-06-16 2020-06-16 視野検査装置
JP2020-103472 2020-06-16

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US18/173,724 Continuation-In-Part US20230190091A1 (en) 2020-06-16 2023-02-23 Visibility Determination System and Visual Field Test Apparatus

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US17/937,780 Continuation-In-Part US20230023605A1 (en) 2020-06-16 2022-10-04 Visual Field Testing Apparatus

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WO2025258551A1 (ja) * 2024-06-11 2025-12-18 株式会社Fove 視野検査装置、視野検査方法、および、視野検査用のプログラム

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WO2021263133A1 (en) * 2020-06-25 2021-12-30 Thomas Jefferson University Systems and methods for blind spot tracking

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US20230023605A1 (en) 2023-01-26
CN115701931A (zh) 2023-02-14

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