Patent ID: 7969585

Claim:
A system for determining corneal thickness of an eye, comprising: a light source adapted to illuminate a cornea; an optical element adapted to receive light from first and second surfaces of the cornea and to produce a first wavefront corresponding to light reflected from the first surface and a second wavefront corresponding to light reflected from the second surface; a light intensity detector having a radiation sensitive surface adapted to receive the first and second wavefronts and to detect the intensity of incident radiation on the radiation sensitive surface from the first and second wavefronts, and to produce an output that provides a measure of the intensity of the incident radiation; a positioner coupled to the optical element and the light intensity detector and adapted to adjust relative positions of the optical element and the light intensity detector; and a processor adapted to determine the first and second wavefronts based on the output of the light intensity detector at a plurality of different relative positions.