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US 2013/0276407 A1Published application
Packaging Solutions
AssigneeBausch & Lomb Incorporated
InventorFang Zhao
Life of this patent
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Abstract
A packaging system for the storage of an ionic, hydrogel contact lens employs an aqueous packaging solution including a phosphorylcholine polymer. Preferably, the solution has an osmolality of at least about 200 mOsm/kg, a pH of about 6 to about 8 and is heat sterilized.
Claims15
A method of preparing a package comprising a storable, sterile contact lens, the method comprising:
- (a) immersing an ionic contact lens in a solution comprising a phosphorylcholine polymer, wherein the solution has an osmolality of at least about 200 mOsm/kg and a pH in the range of about 6 to about 8;
- (b) packaging the solution and the device in a manner preventing contamination of the lens by microorganisms;
- and
- (c) sterilizing the packaged solution and device.
1 more element
Dependencies are inferred from the claim text.