Surface-treated soft contact lenses

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

1976-04-07

1978-06-27

Hamrock, William F.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

351160, 526 522, 526 523, 526 525, 526 55, C08F 832, C08F 834

Patent

active

040976572

ABSTRACT:
Polymer hydrogels adapted for use as soft contact lenses are treated to provide at least on the surfaces thereof a modified, less hydrophilic polymeric structure inhibiting penetration by bacteria and proteins, whereby development of clouding and discoloration of the lens material is significantly retarded.

REFERENCES:
patent: 3471460 (1969-10-01), Rees
patent: 3528958 (1970-09-01), Achorn
patent: 3769261 (1973-10-01), Clampett et al.
patent: 3951528 (1976-04-01), Leeds
patent: 3957740 (1976-05-01), Blank et al.

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