Orthokeratological contact lenses and design methods therefor

Details Orthokeratological contact lenses and design methods therefor Orthokeratological contact lenses and design methods therefor

2011-07-26

2011-07-26

Mai, Huy K (Department: 2873)

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Ophthalmic lenses or blanks

C351S161000, C351S247000

Reexamination Certificate

active

07984988

ABSTRACT:
The present invention provides an orthokeratological contact lens to be worn on a patient's cornea and methods for prescribing the same. The contact lens comprises a parabolic lens having an inner surface configured to face an epithelium of the patient's cornea, wherein the parabolic lens is adapted to reshape the cornea by way of epithelium tissue growth. In a pre-treatment configuration, an outer surface of the epithelium does not conform to the contours of the inner surface of the parabolic lens such that there exits a gap comprising a hypertrophy volume that is disposed between the epithelium and the parabolic lens.

REFERENCES:
patent: 5050981 (1991-09-01), Roffman
patent: 7530689 (2009-05-01), Berke
patent: 7682020 (2010-03-01), Berke

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