Anti-bacterial, UV absorbable, tinted, metal-chelating polymers
First Claim
1. A soft contact lens which comprises a water-swollen gel of a polymer prepared by polymerizing one or more hydrophilic monomers, one or more cross-linking monomers, and a monomer which contributes or which can, after completion of lens polymerization, be developed to contribute, metal-chelating functionality, wherein the monomer that contributes metal-chelating functionality is selected from the group consisting of methacrylic acid amides containing an alkylamino-N,N-diacetic acid group, and acrylic acid amides containing an alkylamino-N,N-diacetic acid group.
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Accused Products
Abstract
A soft contact lens which comprises a water-swollen gel of a polymer prepared by polymerizing one or more hydrophilic monomers such as 2-hydroxyethyl methacrylate, one or more cross-linking monomers, a monomer that contains metal-chelating functionality such as an aminopolycarboxylic acid that contains a polymerizable olefinic group, and an effective amount of iron to absorb UV light and/or an effective amount of copper to cause the lens to be tinted.
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Citations
16 Claims
- 1. A soft contact lens which comprises a water-swollen gel of a polymer prepared by polymerizing one or more hydrophilic monomers, one or more cross-linking monomers, and a monomer which contributes or which can, after completion of lens polymerization, be developed to contribute, metal-chelating functionality, wherein the monomer that contributes metal-chelating functionality is selected from the group consisting of methacrylic acid amides containing an alkylamino-N,N-diacetic acid group, and acrylic acid amides containing an alkylamino-N,N-diacetic acid group.
- 2. A soft contact lens which comprises a water-swollen gel of a polymer prepared by polymerizing one or more hydrophilic monomers, one or more cross-linking monomers, and a monomer which contributes or which can, after completion of lens polymerization, be developed to contribute, metal-chelating functionality, wherein the monomer that contributes metal-chelating functionality is selected from the group consisting of methacrylic acid amides containing an allylamino-N,N-diester group, and acrylic acid amides containing an alkylamino-N,N-diester group.
- 3. A soft contact lens which comprises a water-swollen gel of a polymer prepared by polymerizing one or more hydrophilic monomers, one or more cross-linking monomers, and a monomer which contributes or which can, after completion of lens polymerization, be developed to contribute, metal-chelating functionality, wherein the monomer that contributes metal-chelating functionality is an ester of aminopropylmethacrylamide-N,N-diacetic acid.
- 4. A soft contact lens which comprises a water-swollen gel of a polymer prepared by polymerizing one or more hydrophilic monomers, one or more cross-linking monomers, and a monomer which contributes or which can, after completion of lens polymerization, be developed to contribute, metal-chelating functionality, wherein the monomer that contributes metal-chelating functionality is an aminopropylmethacrylamide-N,N-diacetic acid diethyl ester.
Specification