Optometric apparatus

Details Optometric apparatus Optometric apparatus

1998-06-30

2000-04-11

Manuel, George

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Objective type

A61B 310

Patent

active

060480645

ABSTRACT:
An optometric apparatus for correcting the refraction of an eye to be examined, which allows even a person who is inexperienced and unfamiliar with optometry to easily obtain appropriate prescription values, and conduct analysis of the visual function. The optometric apparatus has a rotary prism for imparting a prism power to the eye to be examined. An appropriate examination is conducted by using the rotary prism in accordance with a program stored in a memory to obtain the prism power of an expected state, and a result of examination is displayed.

REFERENCES:
patent: 3891311 (1975-06-01), Fletcher et al.
patent: 4105302 (1978-08-01), Tate, Jr.
patent: 5444504 (1995-08-01), Kobayashi et al.

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