Contact lenses with indicators
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United States of America Patent
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Mar 17, 2015
Grant Date -
N/A
app pub date -
Oct 12, 2012
filing date -
Oct 18, 2011
priority date (Note) -
In Force
status (Latency Note)
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Abstract
This invention relates to contact lenses comprising pH indicating moieties useful for determining the presence or absence of active bacterial infections wherein said pH indicator is entrapped in the lens. Other aspects relate to contact lenses comprising pH indicating moieties useful for determining the presence or absence of active bacterial infections and a biodegradable coating with a biocompatible colorant entrapped within the coating useful for determining the usable lifespan of the contact lens. Other aspects relate to methods of using such contact lenses.
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