Corneal heat and stretch method and apparatus

Details Corneal heat and stretch method and apparatus Corneal heat and stretch method and apparatus

1998-04-10

2000-02-15

Peffley, Michael

Surgery

Miscellaneous

Methods

606 27, 607 98, A61B 1732

Patent

active

060240954

ABSTRACT:
A method and apparatus to alter the shape of the cornea of an eye provides for heating a portion of the cornea to a temperature not exceeding the collagen shrinkage temperature, and applying a pressure differential to a portion of the cornea. The combined effect of elevated temperature and stretching forces leads to permanent residual strains in preferred directions, and thus to a permanent new shape of the cornea. The method is applicable to the correction or reduction of myopia, hyperopia, and astigmatism.

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