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Method of creating ophthalmic lenses using modulated energy

  • US 8,454,862 B2
  • Filed: 10/19/2005
  • Issued: 06/04/2013
  • Est. Priority Date: 07/30/2004
  • Status: Expired due to Fees
First Claim
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1. A method for making an ophthalmic lens comprisingProviding a fluid optical material;

  • Providing a mold;

    Injecting said fluid optical material into said mold;

    Exposing said mold and fluid optical material to an energy source; and

    modulating said energy source to create a spatial distribution of refractive indices in the optical zone of the lens, wherein the fluid optical material comprises a prepolymer, a photoinitiator, wherein the prepolymer is a derivative of a polyvinyl alcohol and having a chemically attached refractive index enhancing modifier.

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