Method for cleaning, preserving and disinfecting contact lenses
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United States of America Patent
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Apr 25, 1995
Grant Date -
N/A
app pub date -
Oct 8, 1993
filing date -
Oct 8, 1992
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method for cleaning and preserving a contact lens, characterized by using a treating solution containing an effective amount of a serine protease derived from bacteria belonging to genus Bacillus, a metal chelating agent, and boric acid and/or borax which stabilizes the serine protease at room temperature and having the osmotic pressure adjusted to a level of from 200 to 600 mOsm/kg-water, which method comprises dispensing the treating solution at the time of treatment, and immersing a contact lens in the dispensed treating solution.
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