Liquid composition for contact lenses and method for cleaning a contact lens
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United States of America Patent
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Jan 25, 1994
Grant Date -
N/A
app pub date -
Apr 8, 1992
filing date -
Apr 8, 1991
priority date (Note) -
Expired
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Abstract
A liquid composition for contact lenses, having from 5 to 40% (w/v) of glycerol and from 4 to 20% (w/v) of boric acid and/or a borate incorporated to a solution containing an effective amount of a protease, in such a ratio that the boric acid and/or the borate is from 10 to 100 parts, preferably 10-20 parts, by weight per 100 parts by weight of the glycerol.
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