Patent ID: 8740382
Filing Date: 2014-06-03
Classification: A61B,G06K

Abstract:
1. A system for tracking position and movement of a contact lens on a wearer's eye comprising: a camera constructed and arranged to acquire a first image of the eye using a first illumination at a first time in which the contact lens appears opaque with respect to the surrounding eye and a second image of the eye using a second illumination at a second time in which the contact lens appears transparent, allowing viewing of at least one of a pupil and a limbus of the eye, one of the first time and the second time occurring in a direct succession with respect to the other of the first time and the second time; at least one vision system tool constructed and arranged to: a graphical user interface that displays a visible image of the eye and includes overlay graphics showing the location of the contact lens and the location of at least one of the pupil and the limbus with respect to the contact lens.