Title:
A METHOD OF CORNEAL ANALYSIS USING A CHECKERED PLACIDO APPARATUS
Document Type and Number:
WIPO Patent Application WO1998017168
Kind Code:
A3
Abstract:
A method for analysis of the curvature of the surface of a cornea using a checkered placido comprises, projecting the image of the checkered placido onto a patient's cornea, detecting the image of the checkered placido reflected off of the cornea, detecting a plurality of nodal points from the reflected image, determining the mean curvature at a plurality of nodal points and analyzing the mean curvature at a plurality of nodal points in order to produce a graphic display of the estimated actual curvature of the cornea.
Inventors:
D SOUZA HENRY M (US)
SARVER EDWIN J (US)
WAKIL YOUSSEF S (US)
SARVER EDWIN J (US)
WAKIL YOUSSEF S (US)
Application Number:
PCT/US1997/019487
Publication Date:
June 04, 1998
Filing Date:
October 22, 1997
Export Citation:
Assignee:
EYESYS TECH INC (US)
International Classes:
A61B3/107; A61B3/10; G01B11/255; (IPC1-7): A61B/
Foreign References:
| US5159361A | 1992-10-27 |
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