WO2001024727A3 - Laser thermal keratoplasty with minimized regression - Google Patents

Laser thermal keratoplasty with minimized regression Download PDF

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Publication number
WO2001024727A3
WO2001024727A3 PCT/US2000/026448 US0026448W WO0124727A3 WO 2001024727 A3 WO2001024727 A3 WO 2001024727A3 US 0026448 W US0026448 W US 0026448W WO 0124727 A3 WO0124727 A3 WO 0124727A3
Authority
WO
WIPO (PCT)
Prior art keywords
corneal
oblong
shrinkage
correction
shapes
Prior art date
Application number
PCT/US2000/026448
Other languages
French (fr)
Other versions
WO2001024727A2 (en
Inventor
David Huang
Original Assignee
David Huang
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 David Huang filed Critical David Huang
Priority to AU77183/00A priority Critical patent/AU7718300A/en
Publication of WO2001024727A2 publication Critical patent/WO2001024727A2/en
Publication of WO2001024727A3 publication Critical patent/WO2001024727A3/en

Links

Classifications

    • 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
    • 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
    • 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
    • A61F2009/00853—Laser thermal keratoplasty or radial keratotomy
    • 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
    • A61F2009/00861—Methods or devices for eye surgery using laser adapted for treatment at a particular location
    • A61F2009/00872—Cornea

Landscapes

  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Vascular Medicine (AREA)
  • Optics & Photonics (AREA)
  • Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Physics & Mathematics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Laser Surgery Devices (AREA)
  • Radiation-Therapy Devices (AREA)

Abstract

Apparatus and method for performing laser thermal keratoplasty capable of treating treatment areas with shapes that reduce regression. Both contact and non-contact apparatuses and methods are provided. The apparatus includes laser sources, a projection optical system, observation system, and control system. In some embodiments, the projection system uses two steering mirrors or a mask to control laser beam position on the cornea. This projection system enables precise control of the area of corneal heat shrinkage using relatively low-powered lasers, such as diode lasers. Desired changes in corneal refractive power are produced by selected patterns of photothermal shrinkage of corneal collagen tissue. The selected patterns are arrangement of oblong shapes (100, 102, 104, 106, 108, 110) that are preferably tapered at the ends of the long axis. The oblong shape and tapering distribute tension in the cornea over a wider area of collagen shrinkage and improve the stability of refractive correction. The long axes of the oblong treatment areas are preferably oriented radially for hyperopia correction (100, 102, 104, 106) and circumferentially for astigmatism correction (108, 110).
PCT/US2000/026448 1999-10-01 2000-09-27 Laser thermal keratoplasty with minimized regression WO2001024727A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU77183/00A AU7718300A (en) 1999-10-01 2000-09-27 Apparatus and method for performing laser thermal keratoplasty with minimized regression

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/410,022 US6520956B1 (en) 1995-11-06 1999-10-01 Apparatus and method for performing laser thermal keratoplasty with minimized regression
US09/410,022 1999-10-01

Publications (2)

Publication Number Publication Date
WO2001024727A2 WO2001024727A2 (en) 2001-04-12
WO2001024727A3 true WO2001024727A3 (en) 2001-10-04

Family

ID=23622892

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2000/026448 WO2001024727A2 (en) 1999-10-01 2000-09-27 Laser thermal keratoplasty with minimized regression

Country Status (3)

Country Link
US (1) US6520956B1 (en)
AU (1) AU7718300A (en)
WO (1) WO2001024727A2 (en)

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CA2511767A1 (en) * 2002-12-09 2004-06-24 The Trustees Of Dartmouth College Electrically-induced thermokeratoplasty systems and method
US7377917B2 (en) * 2002-12-09 2008-05-27 The Trustees Of Dartmouth College Feedback control of thermokeratoplasty treatments
US8348936B2 (en) * 2002-12-09 2013-01-08 The Trustees Of Dartmouth College Thermal treatment systems with acoustic monitoring, and associated methods
DE10330821B3 (en) * 2003-07-08 2004-09-30 Gebauer Gmbh Laser trepan, especially for eye surgery, has a positioning device for setting down on the eye and a guide tube in which an optical fiber is fed so that it can be eccentrically positioned at any distance from the tube central axis
EP1882937B1 (en) 2005-05-17 2012-02-22 Taiho Pharmaceutical Co., Ltd. Method for diagnosis of severity and prediction of recurrence in eosinophilic inflammatory disease
US20060287662A1 (en) * 2005-05-26 2006-12-21 Ntk Enterprises, Inc. Device, system, and method for epithelium protection during cornea reshaping
US8182471B2 (en) * 2006-03-17 2012-05-22 Amo Manufacturing Usa, Llc. Intrastromal refractive correction systems and methods
WO2007120457A2 (en) * 2006-04-13 2007-10-25 Euclid Systems Corporation Composition and method for stabilizing corneal tissue after refractive surgery
US20070282312A1 (en) * 2006-05-31 2007-12-06 Sie Ag Surgical Instrument Engineering Ophthalmologic apparatus
US7691099B2 (en) 2006-07-12 2010-04-06 Ntk Enterprises, Inc. Deuterated ocular solutions for LTK and other surgical eye procedures
US7566173B2 (en) * 2007-07-09 2009-07-28 Alcon, Inc. Multi-spot ophthalmic laser probe
US8992516B2 (en) * 2007-07-19 2015-03-31 Avedro, Inc. Eye therapy system
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US8409189B2 (en) * 2008-01-23 2013-04-02 Avedro, Inc. System and method for reshaping an eye feature
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US20090187173A1 (en) * 2008-01-23 2009-07-23 David Muller System and method for reshaping an eye feature
US8348935B2 (en) * 2008-01-23 2013-01-08 Avedro, Inc. System and method for reshaping an eye feature
US20090275936A1 (en) * 2008-05-01 2009-11-05 David Muller System and method for applying therapy to an eye using energy conduction
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ES2442002T3 (en) * 2008-06-20 2014-02-07 Wavelight Gmbh Device for cutting a piece of tissue with focused laser radiation
JP2012502763A (en) * 2008-09-19 2012-02-02 アヴェドロ・インコーポレーテッド Eye therapy system
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US8460278B2 (en) * 2008-10-01 2013-06-11 Avedro, Inc. Eye therapy system
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US8574277B2 (en) * 2009-10-21 2013-11-05 Avedro Inc. Eye therapy
WO2011053768A2 (en) * 2009-10-30 2011-05-05 Avedro, Inc. System and method for stabilizing corneal tissue after treatment
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AU2010332222B2 (en) * 2009-12-15 2014-11-20 Alcon Inc. Multi-spot laser probe
EP3556330A1 (en) * 2010-03-19 2019-10-23 Avedro, Inc. Systems for applying and monitoring eye therapy
WO2012127330A1 (en) * 2011-03-23 2012-09-27 Saks Asher Abraham An ophthalmological device and method for the treatment of corneal diseases
WO2012162529A1 (en) 2011-05-24 2012-11-29 Avedro, Inc. Systems and methods for reshaping an eye feature
EP2713849B1 (en) 2011-06-02 2017-02-15 Avedro, Inc. Systems for monitoring time based photo active agent delivery or photo active marker presence
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Also Published As

Publication number Publication date
US6520956B1 (en) 2003-02-18
AU7718300A (en) 2001-05-10
WO2001024727A2 (en) 2001-04-12

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