Protein deposition resistant contact lens

Details Protein deposition resistant contact lens Protein deposition resistant contact lens

1993-10-14

1995-12-12

Sugarman, Scott J.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Ophthalmic lenses or blanks

351177, G02C 704

Patent

active

054754500

ABSTRACT:
A method for treating hydrophilic and rigid gas permeable contact lenses, as well as the manufacture of protein adhesion resistant and gas permeable enhanced lenses, is obtained through purging the hydrated contact lens, formed from polymer comprising hydrogen atoms, substantially all water and oxygen, and thereafter exposing the purged contact lens to a fluorine-containing gas in non-plasma conditions for a period of time and at a temperature sufficient to replace hydrogen atoms in the polymer in order to inhibit protein deposits on the contact lens. The conditions of fluorine exposure can be controlled in order to provide a gas permeable enhanced contact lens.

REFERENCES:
patent: 3992221 (1976-11-01), Homsy et al.

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