IL108672A - System for detecting, measuring and compensating for lateral movements of a target - Google Patents

System for detecting, measuring and compensating for lateral movements of a target

Info

Publication number
IL108672A
IL108672A IL108672A IL10867294A IL108672A IL 108672 A IL108672 A IL 108672A IL 108672 A IL108672 A IL 108672A IL 10867294 A IL10867294 A IL 10867294A IL 108672 A IL108672 A IL 108672A
Authority
IL
Israel
Prior art keywords
limbus
detector means
sensing detector
position sensing
eye
Prior art date
Application number
IL108672A
Other versions
IL108672A0 (en
Original Assignee
Phoenix Laser Systems
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 Phoenix Laser Systems filed Critical Phoenix Laser Systems
Publication of IL108672A0 publication Critical patent/IL108672A0/en
Publication of IL108672A publication Critical patent/IL108672A/en

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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/007—Methods or devices for eye surgery
    • A61F9/008—Methods or devices for eye surgery using laser
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B2017/00681—Aspects not otherwise provided for
    • A61B2017/00694—Aspects not otherwise provided for with means correcting for movement of or for synchronisation with the body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/007—Methods or devices for eye surgery
    • A61F9/008—Methods or devices for eye surgery using laser
    • A61F2009/00844—Feedback systems
    • A61F2009/00846—Eyetracking
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/007—Methods or devices for eye surgery
    • A61F9/008—Methods or devices for eye surgery using laser
    • A61F2009/00878—Planning
    • A61F2009/00882—Planning based on topography

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Engineering & Computer Science (AREA)
  • Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Physics & Mathematics (AREA)
  • Public Health (AREA)
  • Animal Behavior & Ethology (AREA)
  • Vascular Medicine (AREA)
  • Optics & Photonics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Human Computer Interaction (AREA)
  • Biophysics (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • Eye Examination Apparatus (AREA)
  • Laser Surgery Devices (AREA)

Abstract

A method for tracking an eye of a living patient in X-Y directions during a diagnostic or surgical procedure on the eye, to stabilize motion of the eye, comprising: illuminating a region of the eye, including a portion of the limbus, at the outer rim of the iris, providing optics for receiving reflected light from said region of the eye and for focussing an image of said region on a position sensing detector means, with the position sensing detector means, detecting contrast in the image of said region between lighter areas and darker areas, generally at the limbus and including portions of the iris and the sclera on either side of the limbus, and identifying generally a positional relationship of contrast between relative light values in a plurality of segments defined on the position sensing detector means, as a nominal position of the limbus relative to the position sensing detector means, during the course of the diagnostic or surgical procedure, repeatedly reviewing and analyzing the image received on the position sensing detector means and tracing changes in the received contrast relationship to changes in position of the limbus as the contrast relationship shifts on the position sensing detector means, to thus determine a new position of the limbus, and shifting the optics to aim at the determined new position of the limbus, to thereby again read a detected contrast relationship with the position sensing detector means, similar to the contrast relationship for the nominal position.
IL108672A 1993-02-19 1994-02-16 System for detecting, measuring and compensating for lateral movements of a target IL108672A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1955093A 1993-02-19 1993-02-19

Publications (2)

Publication Number Publication Date
IL108672A0 IL108672A0 (en) 1994-05-30
IL108672A true IL108672A (en) 1997-07-13

Family

ID=21793812

Family Applications (1)

Application Number Title Priority Date Filing Date
IL108672A IL108672A (en) 1993-02-19 1994-02-16 System for detecting, measuring and compensating for lateral movements of a target

Country Status (3)

Country Link
AU (1) AU6249694A (en)
IL (1) IL108672A (en)
WO (1) WO1994018883A1 (en)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6159202A (en) 1995-09-29 2000-12-12 Nidex Co., Ltd. Corneal surgery apparatus
JP3655022B2 (en) * 1995-09-29 2005-06-02 株式会社ニデック Ophthalmic surgery equipment
US20020013573A1 (en) * 1995-10-27 2002-01-31 William B. Telfair Apparatus and method for tracking and compensating for eye movements
US5782822A (en) * 1995-10-27 1998-07-21 Ir Vision, Inc. Method and apparatus for removing corneal tissue with infrared laser radiation
AU2003204087B2 (en) * 1995-10-27 2005-02-03 Visx, Incorporated Method and Apparatus For Removing Corneal Tissue With Infrared Laser Radiation
GB2315858A (en) * 1996-08-01 1998-02-11 Sharp Kk System for eye detection and gaze direction determination
JP3828626B2 (en) * 1996-12-27 2006-10-04 株式会社ニデック Ophthalmic surgery equipment
US6090102A (en) * 1997-05-12 2000-07-18 Irvision, Inc. Short pulse mid-infrared laser source for surgery
US6299307B1 (en) 1997-10-10 2001-10-09 Visx, Incorporated Eye tracking device for laser eye surgery using corneal margin detection
EP0947183B1 (en) 1998-03-31 2003-05-28 Nidek Co., Ltd. Laser treatment apparatus
US6283954B1 (en) 1998-04-21 2001-09-04 Visx, Incorporated Linear array eye tracker
US5966197A (en) * 1998-04-21 1999-10-12 Visx, Incorporated Linear array eye tracker
US6322216B1 (en) * 1999-10-07 2001-11-27 Visx, Inc Two camera off-axis eye tracker for laser eye surgery
CA2387742A1 (en) 1999-10-21 2001-04-26 Technolas Gmbh Ophthalmologische Systeme Iris recognition and tracking for optical treatment
WO2003053228A2 (en) * 2001-12-21 2003-07-03 Sensomotoric Instruments Gmbh Method and apparatus for eye registration
CA2487411C (en) 2002-05-30 2011-06-14 Visx, Inc. Tracking torsional eye orientation and position
US7458683B2 (en) 2003-06-16 2008-12-02 Amo Manufacturing Usa, Llc Methods and devices for registering optical measurement datasets of an optical system
GB2426816B (en) * 2004-01-09 2007-06-20 Customvis Plc Limbal-based eye tracking
EP1981426B1 (en) * 2006-01-20 2020-03-18 LENSAR, Inc. System for delivering a laser beam to the lens of an eye
US9117149B2 (en) 2011-10-07 2015-08-25 Industrial Technology Research Institute Optical registration carrier
US9158084B2 (en) 2012-10-24 2015-10-13 Amo Development, Llc Scanning lens systems and methods of reducing reaction forces therein
JP7043262B2 (en) 2015-06-30 2022-03-29 スリーエム イノベイティブ プロパティズ カンパニー Illuminator
IL264530B1 (en) 2019-01-29 2024-03-01 Eyeway Vision Ltd Eye tracking device and a method thereof
CN110191320B (en) * 2019-05-29 2021-03-16 合肥学院 Video jitter and freeze detection method and device based on pixel time sequence motion analysis

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4443075A (en) * 1981-06-26 1984-04-17 Sri International Stabilized visual system
JPH02164335A (en) * 1988-12-16 1990-06-25 Konan Camera Kenkyusho:Kk Eyeball motion analyzing device

Also Published As

Publication number Publication date
IL108672A0 (en) 1994-05-30
AU6249694A (en) 1994-09-14
WO1994018883A1 (en) 1994-09-01

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Legal Events

Date Code Title Description
FF Patent granted
HP Change in proprietorship
KB Patent renewed
KB Patent renewed
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KB Patent renewed
MM9K Patent not in force due to non-payment of renewal fees