Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Ophthalmic lenses or blanks
Patent
1997-03-31
1998-06-02
Epps, Georgia Y.
Optics: eye examining, vision testing and correcting
Spectacles and eyeglasses
Ophthalmic lenses or blanks
351161, G02C 704
Patent
active
057608709
ABSTRACT:
Contact lenses, especially toric and bifocal, which are rotationally stabilized and methods of stabilizing contact lenses. Contact lenses are stabilized, with respect to rotation while in place on the eye, by providing the lenses with a non-circular shape. In a preferred embodiment, a toric contact lens is rotationally stabilized by providing the lens with an oval shape. Also disclosed are methods of providing non-circular lenses with appropriate shapes for proper fit to a patient's eye.
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Lafferty Gary
Payor Rick Edward
Williams Lewis
Zhang Xiaoxiao
Ciba Vision Corporation
Epps Georgia Y.
Lee Michael U.
Meece R. Scott
Schwartz Jordan M.
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