Water-absorptive soft contact lens
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United States of America Patent
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Apr 21, 1998
Grant Date -
N/A
app pub date -
Feb 13, 1996
filing date -
Feb 15, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A water-absorptive soft contact lens comprising a polymer prepared by polymerizing a monomer mixture comprising (A) a fluorine-containing styrene derivative represented by the general formula (I): ##STR1## wherein R.sup.1 is hydrogen atom or methyl group, m is an integer of 1 to 3 and n is 0 or an integer of 1 to 7, and (B) N, N-dimethyl(meth)acrylamide. The water-absorptive soft contact lens has excellent oxygen permeability, high mechanical strength and excellent flexibility independent of water content.
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