Antimicrobial lenses displaying extended efficacy, processes to prepare them and methods of their use
First Claim
1. An ophthalmic device comprising a polymer and ionized silver in an initial concentration of at least about 10 ppm, wherein said ophthalmic device has a haze of less than about 200% and said silver releases from said ophthalmic device during use at rate with a rate constant, calculated using a first order kinetics equation, of up to about 1 days−
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Accused Products
Abstract
This invention relates to antimicrobial ophthalmic devices containing silver releasing compounds and methods for their production. The antimicrobial lenses of the present invention have percent haze of less than about 200% and have a release rate constant, calculated using a first order kinetics equation of up to about 1 days−1 and an initial silver concentration of at least about 10 ppm.
131 Citations
35 Claims
- 1. An ophthalmic device comprising a polymer and ionized silver in an initial concentration of at least about 10 ppm, wherein said ophthalmic device has a haze of less than about 200% and said silver releases from said ophthalmic device during use at rate with a rate constant, calculated using a first order kinetics equation, of up to about 1 days−
Specification