Surface-treated soft contact lenses

Details Surface-treated soft contact lenses Surface-treated soft contact lenses

1981-08-26

1983-04-12

Schofer, J. L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

523106, 523100, 351160H, C08L 3906

Patent

active

043798934

ABSTRACT:
A hydrophilic polymer shaped article adapted for use as a soft contact lens is treated to provide at least on the surfaces thereof a modified, less hydrophilic polymeric structure inhibiting penetration by proteins and other substances in the eye environment, whereby development of clouding and discoloration of the lens material during use is significantly retarded.

REFERENCES:
patent: 3772235 (1973-11-01), Stamberger
patent: 3839304 (1974-10-01), Hovey
patent: 4051194 (1977-09-01), Ishikawa et al.
patent: 4097657 (1978-06-01), Sieglaff et al.
patent: 4128318 (1978-12-01), Sieglaff et al.

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