Use of PEO-PBO block copolymers in ophthalmic compositions
First Claim
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1. A contact lens product, comprising a package;
- and a packaging solution for storing a silicone hydrogel contact lens, wherein the packaging solution comprises 0.001 w/v % to about 1 w/v % of at least one poly(oxyethylene)-poly(oxybutylene) block copolymer having a molecular weight in the range of 500 to 100,000 Daltons, and having an osmolality of 200 to 400 milliosmoles/kilogram.
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Abstract
The use of poly(oxyethylene)-poly(oxybutylene) block copolymers in pharmaceutical compositions useful for modifying the surfaces of contact lenses and other medical devices is disclosed. The present invention is based in-part on a discovery that this class of compounds is particularly efficient in wetting hydrophobic surfaces, such as the surfaces of silicone hydrogel contact lenses and other types of ophthalmic lenses. Such compounds are also useful for cleaning purposes. The use of the compounds as surfactants in various types of compositions for treating contact lenses therefore represents a preferred embodiment of the present invention.
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10 Claims
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1. A contact lens product, comprising a package;
- and a packaging solution for storing a silicone hydrogel contact lens, wherein the packaging solution comprises 0.001 w/v % to about 1 w/v % of at least one poly(oxyethylene)-poly(oxybutylene) block copolymer having a molecular weight in the range of 500 to 100,000 Daltons, and having an osmolality of 200 to 400 milliosmoles/kilogram.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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