Method and apparatus of optometry

Details Method and apparatus of optometry Method and apparatus of optometry

1994-10-03

1996-08-13

Sikes, William L.

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Subjective type

351239, 351246, A61B 302

Patent

active

055461425

ABSTRACT:
A method and apparatus of optometry, which lets a subject observe an optometrical target through a correcting optical system having a variable refractive power, are designed to measure the optical characteristics of the subject with a measuring means, and display on a display means a target image as the case of the observation of a prescribed target by the subject, based on the measured optical characteristics of the subject.

REFERENCES:
patent: 4740071 (1988-04-01), Kobayashi

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