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Anti-bacterial, UV absorbable, tinted, metal-chelating polymers

  • US 5,770,637 A
  • Filed: 05/01/1996
  • Issued: 06/23/1998
  • Est. Priority Date: 05/01/1996
  • Status: Expired due to Term
First Claim
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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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