Patent ID: 6050687
Filing Date: 2000-04-18
Classification: A61B

Abstract:
A system for measuring optical properties of an eye, the eye having, in order, a cornea, a lens and a retina, said system comprising:an optical means for directing a first light beam for reflection from the cornea of the eye as a reflected first light beam;a lenslet array for separating said reflected first light beam into a plurality of first individual beams with each said first individual beam having an optical path length;an optical means for aiming a second light beam through the cornea, and through the lens, for reflection from the retina of the eye as a reflected second light beam;a lenslet array for separating said reflected second light beam into a plurality of second individual beams with each said second individual beam having an optical path length;a computer means for using said plurality of first individual beams to create a topographical map of the cornea indicative of the optical path lengths of said first individual beams, and for using said plurality of second individual beams to create an acuity map of the eye indicative of the optical path lengths of said second individual beams; anda comparator means operable with said computer means for comparing said topographical map of the cornea with said acuity map of the eye to determine selected optical properties of the eye.