Patent ID: 7922330
Filing Date: 2011-04-12
Classification: A61B,A61F

Abstract:
1. An apparatus for monitoring the position of an eye during a laser ablation treatment of the eye, the apparatus including: an imaging sub-system to record an instantaneous image of a first region of the eye of the patient, which first region traverses the limbus of the eye and to analyze said image to derive a first indication of the location of the limbus in said first region at first intervals; at least one detector configured to detect said return beam and to determine a second indication of the location of the limbus in said second region of said surface, at second intervals, wherein the second intervals are substantially shorter than the first intervals; the apparatus being configured to determine in response to said first indication the position of the eye at said first or greater intervals, and in response to said second indication update that position within said first or greater intervals.