CA2090358A1 - Apparatus for Examining Gaze Shift in Depth Direction - Google Patents

Apparatus for Examining Gaze Shift in Depth Direction

Info

Publication number
CA2090358A1
CA2090358A1 CA2090358A CA2090358A CA2090358A1 CA 2090358 A1 CA2090358 A1 CA 2090358A1 CA 2090358 A CA2090358 A CA 2090358A CA 2090358 A CA2090358 A CA 2090358A CA 2090358 A1 CA2090358 A1 CA 2090358A1
Authority
CA
Canada
Prior art keywords
depth direction
eye movement
subject
gaze shift
examining
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.)
Granted
Application number
CA2090358A
Other languages
French (fr)
Other versions
CA2090358C (en
Inventor
Ryo Fukatsu
Naohiko Takahata
Hitoshi Hongo
Hiroshi Yoshimatsu
Jiro Miyazawa
Norihito Nakano
Kenya Uomori
Mitsuho Yamada
Keiichi Ueno
Shinji Murakami
Mitsuru Fujii
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ATR AUDITORY AND VISUAL PERCEPTION RESEARCH LABORATORIES
Original Assignee
ATR AUDITORY AND VISUAL PERCEPTION RESEARCH LABORATORIES
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by ATR AUDITORY AND VISUAL PERCEPTION RESEARCH LABORATORIES filed Critical ATR AUDITORY AND VISUAL PERCEPTION RESEARCH LABORATORIES
Publication of CA2090358A1 publication Critical patent/CA2090358A1/en
Application granted granted Critical
Publication of CA2090358C publication Critical patent/CA2090358C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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

Abstract

In an apparatus for examining gaze shift in depth direction, light emitting diodes B and E, or D and C are lit at a plurality of positions with different distance in depth direction from the subject, and eye movement of the subject at that time is detected by an eye movement detecting portion (2). The signal of detection is processed in a signal processing circuit (5) and is applied to a calculating portion (1). The calculating portion (1) determines whether or not there is a disorder in gaze shift in depth direction of the subject by using any or all of latency in eye movement, time constant, amplitude, change in convergence angle, number of occurrence of saccade, and asymmetry of left and right eye movements, in response to the detected output of the eye movement.
CA002090358A 1992-09-17 1993-02-25 Apparatus for examining gaze shift in depth direction Expired - Fee Related CA2090358C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP4247780A JPH08104B2 (en) 1992-09-17 1992-09-17 Depth eye movement inspection device
JP4-247780 1992-09-17

Publications (2)

Publication Number Publication Date
CA2090358A1 true CA2090358A1 (en) 1994-03-18
CA2090358C CA2090358C (en) 1997-04-15

Family

ID=17168544

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002090358A Expired - Fee Related CA2090358C (en) 1992-09-17 1993-02-25 Apparatus for examining gaze shift in depth direction

Country Status (6)

Country Link
US (1) US5382989A (en)
EP (1) EP0587976B1 (en)
JP (1) JPH08104B2 (en)
KR (1) KR960006648B1 (en)
CA (1) CA2090358C (en)
DE (1) DE69314126T2 (en)

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US6373961B1 (en) 1996-03-26 2002-04-16 Eye Control Technologies, Inc. Eye controllable screen pointer
US5861936A (en) * 1996-07-26 1999-01-19 Gillan Holdings Limited Regulating focus in accordance with relationship of features of a person's eyes
US6027216A (en) * 1997-10-21 2000-02-22 The Johns University School Of Medicine Eye fixation monitor and tracker
US6433760B1 (en) 1999-01-14 2002-08-13 University Of Central Florida Head mounted display with eyetracking capability
AUPQ748800A0 (en) * 2000-05-12 2000-06-08 Commonwealth Scientific And Industrial Research Organisation Computer diagnosis and screening of mood disorders
JP2002017677A (en) * 2000-07-07 2002-01-22 Hamamatsu Photonics Kk Convergence angle measurement instrument
US6965226B2 (en) * 2000-09-05 2005-11-15 Cascade Microtech, Inc. Chuck for holding a device under test
KR20030087101A (en) * 2002-05-06 2003-11-13 고종선 A new measuring method of slow component velocity to analyze eye movement
US20050110950A1 (en) * 2003-03-13 2005-05-26 Thorpe William P. Saccadic motion sensing
US7872635B2 (en) * 2003-05-15 2011-01-18 Optimetrics, Inc. Foveated display eye-tracking system and method
JP2006136450A (en) * 2004-11-11 2006-06-01 Matsushita Electric Ind Co Ltd Iris certification device
US9301679B2 (en) 2007-11-01 2016-04-05 Dignity Health Method of detecting neurological disease
JP5593039B2 (en) * 2009-05-29 2014-09-17 進 新谷 Cognitive ability test system
KR101046677B1 (en) * 2011-03-15 2011-07-06 동국대학교 산학협력단 Methods for tracking position of eyes and medical head lamp using thereof
CA2855968C (en) 2011-11-22 2018-06-19 Dignity Health System and method for using microsaccade peak velocity as a measure of mental workload and fatigue
US9962119B2 (en) 2013-05-31 2018-05-08 Dignity Health System and method for detecting neurological disease
US10206568B2 (en) * 2014-05-23 2019-02-19 Natus Medical Incorporated Head mountable device for measuring eye movement
US10743806B2 (en) 2014-06-11 2020-08-18 Dignity Health Systems and methods for non-intrusive deception detection
WO2016029019A1 (en) 2014-08-21 2016-02-25 Dignity Health Systems and methods for using eye movements to determine traumatic brain injury
WO2016133588A1 (en) * 2015-02-20 2016-08-25 REBIScan, Inc. Method and apparatus for fixation measurement and refraction error measurement using wave-front error
CN105496347B (en) * 2016-01-12 2017-06-06 哈尔滨学院 Depending on depth electronic measuring device
US20170354326A1 (en) * 2016-06-10 2017-12-14 Johnson & Johnson Vision Care, Inc. Electronic ophthalmic lens with medical monitoring
CN109276228B (en) * 2017-07-21 2020-12-25 成都集思鸣智科技有限公司 System and device for detecting brain function
CN112220448B (en) * 2020-10-14 2022-04-22 北京鹰瞳科技发展股份有限公司 Fundus camera and fundus image synthesis method
WO2023281622A1 (en) * 2021-07-06 2023-01-12 日本電気株式会社 Recovery degree estimation device, recovery degree estimation method, and recording medium
WO2023281621A1 (en) * 2021-07-06 2023-01-12 日本電気株式会社 Recovery degree estimation device, recovery degree estimation method, and recording medium

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Also Published As

Publication number Publication date
KR940006545A (en) 1994-04-25
CA2090358C (en) 1997-04-15
EP0587976B1 (en) 1997-09-24
JPH08104B2 (en) 1996-01-10
DE69314126D1 (en) 1997-10-30
US5382989A (en) 1995-01-17
DE69314126T2 (en) 1998-03-05
EP0587976A3 (en) 1995-04-05
EP0587976A2 (en) 1994-03-23
KR960006648B1 (en) 1996-05-22
JPH0690903A (en) 1994-04-05

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