Ophthalmological instrument

Details Ophthalmological instrument Ophthalmological instrument

1992-10-19

1994-08-09

Sikes, William L.

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Objective type

351205, A61B 314

Patent

active

053370953

ABSTRACT:
An ophthalmological instrument has an anterior portion observation system for observing the anterior portion of an eye to be tested. The anterior portion observation system includes focus position shifting means capable of properly focusing in at least two different portions of the eye.

REFERENCES:
patent: 4712894 (1987-12-01), Nunokawa
patent: 4786161 (1988-11-01), Muller et al.
patent: 4991953 (1991-02-01), Pflibsen et al.

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