초록 ▼

A system and method for correcting corneal irregularities through reshaping of an eye's cornea to provide a desired corrective corneal curvature. A preferred embodiment of the invention includes a topography device for mapping in detail the irregularities and surface deviations of a cornea, an inter

A system and method for correcting corneal irregularities through reshaping of an eye's cornea to provide a desired corrective corneal curvature. A preferred embodiment of the invention includes a topography device for mapping in detail the irregularities and surface deviations of a cornea, an interface system for receiving and manipulating topographical data and for providing directions to a laser system or the like to carry out a predetermined ablation profile on a substrate such as a corneal stroma and for providing a variety of actual and simulated pre and post operative visual depictions. The interface system, which can be a stand alone item, provides a tool for use by a surgeon or the like which allows a surgeon to input his expertise in the development of a clinical ablation profile that is well suited for the eye characteristics, review and also simulate a wide variety of potential surgical alternatives for a wide variety of corneal defects including irregular eye shapes and corneal surface irregularities.

대표청구항 ▼

[ What is claimed is:] [1.] An ablation control apparatus for use in laser corneal corrective surgery comprising:a topographical data acquisition means for obtaining surface elevation map data of a cornea of a patient which defines a three dimensional surface of a zone of the cornea,a best fit spher

[ What is claimed is:] [1.] An ablation control apparatus for use in laser corneal corrective surgery comprising:a topographical data acquisition means for obtaining surface elevation map data of a cornea of a patient which defines a three dimensional surface of a zone of the cornea,a best fit sphere calculation means for fitting a spherical surface to the surface elevation map data,an interactive reference ablation profile means for generating an ablation profile that is the difference between the three dimensional surface of a zone of the cornea and the calculated spherical surface,a predicted corneal shape display means for generating a display that is a representation of a predicted corneal shape that would result from a laser in situ keratomileusis treatment in which a volume of corneal tissue exposed by the raising of a corneal flap is removed by a laser ablation corresponding to the ablation profile, anda laser control data means for outputting the ablation profile to a data form for controlling a laser to perform a laser ablation of corneal tissue defined by the ablation profile.