The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 20, 1994
Filed:
Mar. 23, 1993
Applicant:
Inventors:
Kenneth G Spears, Skokie, IL (US);
Gerald Horn, Northfield, IL (US);
Assignee:
Kerus Medical Systems, San Bruno, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B / ;
U.S. Cl.
CPC ...
606-5 ; 606-3 ; 606 10 ; 128898 ;
Abstract
A method for changing the shape of the cornea of an eye to correct refractive disorders comprises employing laser radiation having a selected wavelength, beam pattern, and beam power profile, and employing this radiation for a selected time duration, wherein the wavelength, beam pattern, beam power profile and time duration are chosen to selectively kill or injure keratocytes and to avoid shrinking the collagen in a selected treatment volume of the cornea which has a posterior boundary which is at least 10% of the total stromal depth, and preferably between 50-90% of the stromal depth.