Compositions and methods for disinfecting contact lenses and preserving contact lens care products
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United States of America Patent
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Feb 15, 2000
Issued Date -
N/A
app pub date -
Aug 2, 1996
filing date -
Dec 12, 1994
priority date (Note) -
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Abstract
Compositions for disinfecting contact lenses include a liquid medium containing a chlorite component, preferably a water soluble chlorite component, in a contact lens disinfecting amount, and a polyanionic component, preferably a water soluble polyanionic component, in an amount effective to do at least one of the following: inhibit formation of protein deposit material on a contact lens immersed in the composition; reduce the toxicity of the composition to the human eye, and reduce the damage to a contact lens caused by immersing the contact lens in the composition. The composition has a viscosity of less than 50 cps at 25.degree. C., an osmolality of at least about 200 mOsmol/kg, and preferably a pH in the range of about 6 to about 9.
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