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8. (US20120310223) METHOD FOR MODIFYING THE REFRACTIVE INDEX OF OCULAR TISSUES AND APPLICATIONS THEREOF

Application Number: 13326403 Application Date: 15.12.2011
Publication Number: 20120310223 Publication Date: 06.12.2012
Publication Kind : A1
IPC:
A61F 9/01
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
F
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
9
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
007
Methods or devices for eye surgery
008
using laser
01
Treatment of the cornea
CPC:

Applicants: Knox Wayne H.
Huxlin Krystel R.
Inventors: Knox Wayne H.
Huxlin Krystel R.
Priority Data:
Title: (EN) METHOD FOR MODIFYING THE REFRACTIVE INDEX OF OCULAR TISSUES AND APPLICATIONS THEREOF
Abstract: front page image
(EN)

A method for modifying a refractive property of ocular tissue in an eye by creating at least one optically-modified gradient index (GRIN) layer in the corneal stroma and/or the crystalline by continuously scanning a continuous stream of laser pulses having a focal volume from a laser having a known average power along a continuous line having a smoothly changing refractive index within the tissue, and varying either or both of the scan speed and the laser average power during the scan. The method may further involve determining a desired vision correction adjustment, and determining a position, number, and design parameters of gradient index (GRIN) layers to be created within the ocular tissue to provide the desired vision correction.