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Thermokeratoplasty system with a power supply that can determine a wet or dry cornea

  • US 6,986,770 B2
  • Filed: 10/07/2003
  • Issued: 01/17/2006
  • Est. Priority Date: 08/23/1993
  • Status: Expired due to Fees
First Claim
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1. An electrical power supply for a thermokeratoplasty tip that can provide an indication of an electrical characteristic of a cornea, comprising:

  • an electrode pin;

    a return pin; and

    ,a circuit that can provide a current to said electrode pin and the cornea, and an indication of the electrical characteristic of the cornea in response to the current flowing through the cornea and said electrode and return pins, said circuit varies an amplitude of said current in accordance with the electrical characteristic.

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