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METHODS AND SYSTEMS FOR OPTHALMIC MEASUREMENTS AND LASER SURGERY AND METHODS AND SYSTEMS FOR SURGICAL PLANNING BASED THEREON

  • US 20170189233A1
  • Filed: 09/19/2016
  • Published: 07/06/2017
  • Est. Priority Date: 03/13/2008
  • Status: Active Grant
First Claim
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1. An ophthalmic measurement and laser surgery system, comprising:

  • a laser source configured to produce a pulsed laser beam;

    a corneal topography subsystem;

    an axis determining subsystem;

    a ranging subsystem comprising an Optical Coherence Tomographer (OCT);

    a refractive index determining subsystem;

    each of the laser source, the corneal topography subsystem, the axis determining subsystem, and the refractive index determining subsystem under the operative control of a controller, wherein the controller is configure to;

    operate the corneal topography subsystem to obtain corneal surface information;

    operate the axis determining subsystem to identify one or more ophthalmic axes of the eye;

    operate the OCT to sequentially scan the eye in a plurality of OCT scan patterns, the plurality of scan patterns configured to determine an axial length of the eye;

    operate the refractive index determining subsystem so to determine an index of refraction of one or more ophthalmic tissues,wherein at least one of the corneal surface information, ophthalmic axis information, and axial length is modified based on the determined index of refraction.

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