Soft, tough low refractive index contact lenses

Details Soft, tough low refractive index contact lenses Soft, tough low refractive index contact lenses

1974-02-26

1976-02-24

Rubin, David H.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Ophthalmic lenses or blanks

260 875A, G02C 704

Patent

active

039402070

ABSTRACT:
Disclosed is a soft, tough, contact lens for the human eye constructed of fluorine-containing polymers, said lens having a Clash-Berg torsion modulus of 95-1000 lb/sq. in. and a refractive index approximating that of human tears.

REFERENCES:
patent: 3132123 (1964-05-01), Harris et al.
patent: 3228741 (1966-01-01), Becker
patent: 3542461 (1970-11-01), Girard et al.
patent: 3808179 (1974-04-01), Gaylord

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