Computer driven optical keratometer and method of evaluating the

Details Computer driven optical keratometer and method of evaluating the Computer driven optical keratometer and method of evaluating the

1988-03-17

1994-04-26

Dzierzynski, Paul M.

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Objective type

351221, A61B 310

Patent

active

053070968

ABSTRACT:
An apparatus and method for measuring the shape of the cornea utilize only one reticle to generate a pattern of rings projected onto the surface of a subject's eye. The reflected pattern is focused onto an imaging device such as a video camera and a computer compares the reflected pattern with a reference pattern stored in the computer's memory. The differences between the reflected and stored patterns are used to calculate the deformation of the cornea which may be useful for pre-and post-operative evaluation of the eye by surgeons.

REFERENCES:
patent: 4692003 (1987-09-01), Adachi et al.
patent: 4721379 (1988-01-01), L'Esperance
"Physicians & Computers", Leading Computer Health Care Journal, vol. 5, No. 4, Aug. 1987.

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