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Generating scanning spot locations for laser eye surgery

  • US 6,673,062 B2
  • Filed: 03/13/2001
  • Issued: 01/06/2004
  • Est. Priority Date: 03/14/2000
  • Status: Expired due to Term
First Claim
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1. A method of generating a treatment table for ablating tissue using a scanning laser beam for generating scanning spots over a treatment region larger in area tan the scanning spots, the method comprising:

  • providing a target function representing a desired lens profile for ablating the tissue by scanning spots of the laser beam on the tissue to achieve a desired removal of the tissue by ablating the tissue according to the desired lens profile represented by the target function;

    providing a user-specified basis function representing a treatment profile produced by scanning with overlapping scanning spots of the laser beam to be centered at a plurality of scanning spot locations on the tissue in a user-specified treatment pattern; and

    fitting the target function with the user-specified basis function to obtain a treatment table including scanning spot locations and characteristics for the overlapping scanning spots of the laser beam, such that an ablation employing the user-specified basis function according to the scanning spot locations and characteristics of the treatment table will substantially achieve the desired removal of the tissue as represented by the target function.

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