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.

Date of Patent:
Aug. 04, 2020

Filed:

Dec. 17, 2016
Applicant:

Novartis Ag, Basel, CH;

Inventors:

Martin Eil, Berlin, DE;

Ole Massow, Nuremberg, DE;

Carsten Thomas, Nuthe-Urstromtal, DE;

Sascha Birkner, Berlin, DE;

Assignee:

Alcon Inc., , CH;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B 3/14 (2006.01); A61B 3/10 (2006.01); A61B 3/02 (2006.01); A61B 3/00 (2006.01); A61B 3/107 (2006.01); G01B 11/25 (2006.01); G01B 11/255 (2006.01);
U.S. Cl.
CPC ...
A61B 3/107 (2013.01); A61B 3/0025 (2013.01); A61B 3/14 (2013.01); G01B 11/25 (2013.01); G01B 11/255 (2013.01);
Abstract

A system and method for determining eye surface contour using multifocal keratometry is disclosed. The system includes a light source, a light detector, a processor, a non-transitory machine-readable medium communicatively coupled to the processor, and instructions stored on the non-transitory machine-readable medium. The instructions, when loaded and executed by the processor, cause the processor to project a light, using the light source, onto a plurality of surfaces of an eye; create, using the light detector, an image of a plurality of reflections, each of the plurality of reflections created by reflecting the light off of one of the plurality of surfaces of the eye; determine that the plurality of reflections are in focus in the image; and calculate, based on the determination, a curvature of the plurality of surfaces of the eye based on the image.


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