Spectacle lens insert for aphakic refraction

Details Spectacle lens insert for aphakic refraction Spectacle lens insert for aphakic refraction

1980-04-11

1981-05-26

Corbin, John K.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

With auxiliary lenses movable in and out of the optical path

G02C 1102

Patent

active

042694876

ABSTRACT:
Over refraction of an aphakic patient with a temporary lens clipped into an empty eye wire of a spectacles frame to be subsequently permanently glazed and worn by the patient. With the temporary lens set at proper vertex distance from the cornea, centered with the eye and correct face fitting adjustment of the frame, over-refraction is undertaken for determination of permanent lens refractive requirements.

REFERENCES:
patent: 1551978 (1925-09-01), Cserep
patent: 1661967 (1928-03-01), Savoie
patent: 2491312 (1949-12-01), Henry et al.
patent: 4029402 (1977-06-01), Noble
patent: 4055900 (1977-11-01), Grolman et al.
Frey, Oct. 1952, Fit-over Trial Frame p. 1501.

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