Method and apparatus for multi-level eye registration

US9295380B2 · kind B2 · utility

Assignee

• Alcon Pharmaceuticals, Ltd. · CH

Inventors

• Oliver Kersting · Kleinmachnow, DE
• Horia Grecu · Berlin, DE

Key dates

• Filing date: Oct 13, 2015
• Grant date: Mar 29, 2016
• Expiry date: Oct 13, 2035

Classification

• Technology area (CPC G): Physics
• CPC primary: G06T2207/30041
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A method for performing multi-level eye registration comprising: obtaining a first initial reference eye image by a first diagnostic device and defining a reference coordinate system; obtaining a second eye image by a surgery device, said second eye image being obtained in a pre-surgery phase before the surgery has started; performing a first registration between said first eye image and said second eye image to obtain a first registration result; obtaining a third eye image by said surgery device, said third eye image being obtained after surgery has started; performing a second registration between said second eye image and said third eye image to obtain a second registration result; combining said first and second registration results to obtain a combined registration result to thereby obtain a registration between said initial reference eye image obtained by said diagnostic device and said third eye image obtained by said surgery device after surgery has started.