Surface-treated soft contact lenses
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United States of America Patent
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-
Apr 12, 1983
Grant Date -
N/A
app pub date -
Aug 26, 1981
filing date -
Aug 26, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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