Patent ID: 9207466
Filing Date: 2015-12-08
Classification: A61B,G02C,G06F

Abstract:
1. A method for selecting a contact lens that accounts for Decentration Error and/or Rotation Error, comprising the steps of: obtaining results of a first wavefront exam performed on the patient's bare eye, the results including a first wavefront map and a first set of Zernike polynomials; selecting a first contact lens that improves said patient's vision using the results of the first wavefront exam; obtaining results of a second wavefront exam performed on said patient while wearing the selected first contact lens, the second results including a second wavefront map and a second set of Zernike polynomials; calculating Decentration Error or Rotation Error of the selected first lens by calculating a difference between the first and second sets of Zernike polynomials; and selecting a second lens that better accounts for the calculated Decentration Error or Rotation Error of the selected first lens using said calculated difference.