Patent ID: 6079829
Filing Date: 2000-06-27
Classification: A61B

Abstract:
In an eye-tracking system for analyzing motion of an individual's eye, said system includinga flexible fiber-optic image guide having a first end in optical communication with a second end, said first end positioned at a selected location with respect to said eye;a camera operatively engaged with said second end of said fiber-optic image guide cable for conveying a real-time image of said eye, said camera adapted to produce a digitized representation of said real-time image of said eye; anda computer performing operations controlled by a software program for comparing the position of a first reference point disposed in said digital representation of said real-time image of said eye to the position of a corresponding second reference point disposed within a control image, said computer interfaced with said conversion means, the improvement comprising:an independent illumination source constructed and arranged to illuminate the eye and its structures using a wavelength of light which is outside of the visible spectrum and effective to form a reflected image of the eye and its structures;whereby reliable and repeatable illumination conditions are achieved.