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System, apparatus, and method for correcting vision using an electro-active lens

  • US 7,731,358 B2
  • Filed: 10/03/2008
  • Issued: 06/08/2010
  • Est. Priority Date: 07/02/1999
  • Status: Expired due to Fees
First Claim
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1. A lens, comprising:

  • a first region having a variable index of refraction;

    a second region associated with unwanted astigmatism, wherein the first region reduces the unwanted astigmatism associated with the second region.

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