Contact lenses comprising water soluble N-(2 hydroxyalkyl) (meth)acrylamide polymers or copolymers
First Claim
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1. A method comprising contacting a biomedical device formed from a hydrogel with a solution comprising at least one water soluble, non-reactive hydrophilic polymer comprising less than 20 mol % anionic repeating units and repeating units derived from N-(2-hydroxyalkyl)(meth)acrylamide of Formula I
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Abstract
The present invention relates to biomedical devices, and particularly contact lenses comprising a polymer having entangled therein at least one polymer comprising repeating units from N-(2-hydroxyalkyl)(meth)acrylamide.
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30 Claims
- 1. A method comprising contacting a biomedical device formed from a hydrogel with a solution comprising at least one water soluble, non-reactive hydrophilic polymer comprising less than 20 mol % anionic repeating units and repeating units derived from N-(2-hydroxyalkyl)(meth)acrylamide of Formula I
- 25. An ophthalmic solution comprising between about 10 ppm and about 10 wt % at least one water soluble, non-reactive hydrophilic polymer comprising less than 20 mol % anionic repeating units and repeating units derived from N-(2-hydroxyalkyl)(meth)acrylamide of Formula I
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29. The solution of 28, wherein said solution is a saline solution comprising salts selected from the group consisting sodium chloride, sodium borate, sodium phosphate, sodium hydrogenphosphate, sodium dihydrogenphosphate, and corresponding potassium salts thereof.
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30. The solution of 28, wherein said water soluble, non-reactive hydrophilic polymer has a degree of polymerization between about 100 and about 100,000.
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