Corneal tissue ablation designed for dark adaptability
AssigneeAutonomous Technologies Corporation
InventorRudolph W. Frey
Life of this patent
Estimating the term…
Abstract
A system and method for performing a reshaping of a cornea of an eye for improved vision is presented. The system comprises a first appartus for determining dark adapted pupil size of an eye and a second apparatus for reshaping a cornea of the eye in an area approximately equal to the dark adapted pupil size as determined by the first apparatus. The method of the present invention involves dilating the pupil of an eye to its dark adapted size, determining the diameter of the dilated pupil, and ablating the cornea of the eye to match the dilated pupil size. The advantage to using such a system and method when reshaping a cornea of an eye is reduced halo effect or improved night vision.
Claims19
A method for performing a reshaping of an eye for improved vision, the method comprising the steps of:
- placing an eye within an environment useful in measuring vision of the eye;
- reducing available light within the environment for providing a dark environment within which the eye operates;
- allowing the pupil of an eye to dilated to a size adapted for vision of the eye in the dark environment;
- determining a shape of the dilated pupil;
- and
- ablating corneal material of the eye over a corneal surface sized approximately to the shape of the dilated pupil.
A method for performing a reshaping of an eye for improved vision, the method comprising the steps of:
- adding a chemical eye drop onto the eye for dilating the pupil of the eye;
- allowing the pupil of the eye to dilate to a size adapted for vision of the eye in a dark environment;
- determining a shape of the dilated pupil;
- and
- ablating corneal material of the eye over a corneal surface sizes approximately to the shape of the dilated pupil.
A method for performing a reshaping of an eye for improved vision, the method comprising the steps of:
- dilating the pupil of an eye to a size adapted for vision of the eye in a dark environment;
- placing at least one light spot on the dilated pupil sufficient for covering the dilated pupil;
- determining a shape of the at least one light spot;
- and
- ablating corneal material of the eye over a corneal surface sized approximately to the shape of the at least one light spot.
Dependencies are inferred from the claim text.