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:
Jun. 07, 1994
Filed:
May. 10, 1993
Applicant:
Inventors:
James Davenport, Fallbrook, CA (US);
Bryan Loomas, Santa Clara, CA (US);
Mark Mathis, Santa Clara, CA (US);
Thomas Silvestrini, Alamo, CA (US);
Assignee:
KeraVision Inc., Santa Clara, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61F / ;
U.S. Cl.
CPC ...
128898 ; 623-4 ; 606-5 ;
Abstract
A method for refractive correction of the eye in order to improve the vision of the eye while not adversely affecting its natural asphericity is described. The method involves determining the amount of correction necessary, selecting an intrastromal corneal ring (ICR) of appropriate thickness to obtain the necessary correction from a selection of ICRs of varying thickness, and inserting the ICR into the corneal stroma. The method may be useful for the correction of myopia and excessive astigmatism.