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US 5,843,070 AGranted
Simulating corneal laser surgery
AssigneeParTech, Inc.
InventorsJames L. Cambier, George W. Rozakis
Life of this patent
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AssigneeParTech, Inc.
InventorsJames L. Cambier, George W. Rozakis
Estimating the term…
An apparatus and method are provided for simulating a predicted post-operative topography of a cornea of an eye based on a pre-operative topography of the cornea and a proposed laser ablation procedure. A digital data processing system receives data defining a pre-operative topography of the cornea as a function of location and obtains parameters of the proposed laser ablation procedure from which the digital data processing system can determine the amount of cornea expected to be ablated as a function of location on the cornea. Based on the data and the parameters, the digital data processing system produces an output representing a simulated post-operative topography of the cornea as a function of location. The parameters of the proposed laser ablation procedure specify variations in a cut rate of the laser beam (such as data specifying a plurality of laser beam cut rates for each of a corresponding plurality of laser beam pulses, or data specifying relative laser beam energy level or fluence at each of a plurality of points within the laser beam).
An apparatus for producing a simulated post-operative topography model simulating a predicted post-operative topography of a cornea of an eye based on a pre-operative topography of said cornea and a proposed laser ablation procedure, comprising:
A method of producing a simulated post-operative topography model simulating a predicted post-operative topography of a cornea based on a pre-operative topography of said cornea and a proposed laser ablation procedure, comprising the steps of:
An apparatus for simulating a predicted change in topography of a cornea of an eye based on a proposed laser ablation procedure and based on parameters specifying variations in a cut rate of a laser beam, comprising:
A method of simulating a predicted change in topography of a cornea based on a proposed laser ablation procedure and based on parameters specifying variations in a cut rate of a laser beam, comprising the steps of:
Dependencies are inferred from the claim text.