Surface-treated soft contact lenses

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

1978-03-22

1978-12-05

Hamrock, William F.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Ophthalmic lenses or blanks

526 523, 351177, 260 296N, C08F 832

Patent

active

041283180

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 in use.

REFERENCES:
patent: 3957740 (1976-05-01), Blank et al.

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