Method for molding a hydrophilic contact lens
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United States of America Patent
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Dec 21, 1993
Grant Date -
N/A
app pub date -
Nov 4, 1992
filing date -
Nov 4, 1992
priority date (Note) -
In Force
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Importance
Abstract
A process for molding hydrophilic contact lenses comprising the steps of providing lens forming liquid comprising hydrophilic monomer mixed with solvent and polymerizing the liquid between two mold halves. The improvement comprises substantially removing the solvent by evaporation at temperature no higher than about 100 degrees C.
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