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Method and apparatus for measuring corneal incisions

  • US 6,175,754 B1
  • Filed: 06/07/1995
  • Issued: 01/16/2001
  • Est. Priority Date: 06/07/1995
  • Status: Expired due to Fees
First Claim
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1. A tool for use in determining a measured depth of a tissue pocket having an anterior surface by directing energy toward the pocket from above an anterior surface of the tissue, said tool comprising:

  • a tool body; and

    a tool end extending from said tool body and dimensioned to be inserted within the tissue pocket, between layers of tissue formed by an incision, said tool end having a surface defined by length and width dimensions which are adapted to be positioned substantially parallel to the layers of tissue, said tool end further having a thickness dimension smaller than and perpendicular to said length and width dimensions, at least a portion of said tool end characterized by an energy transmission rate which is less than an energy transmission rate of the tissue, wherein said tool end is adapted to reflect the directed energy at a rate slower than the rate of transmission of the directed energy through the tissue wherein the measured depth of the tool below the anterior surface is a function of energy reflected by said tool end.

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