Optics: eye examining – vision testing and correcting – Spectacles and eyeglasses – Ophthalmic lenses or blanks
Patent
1998-03-18
2000-03-14
Sugarman, Scott J.
Optics: eye examining, vision testing and correcting
Spectacles and eyeglasses
Ophthalmic lenses or blanks
351 41, 351 44, 351159, G02C 702, G02C 710
Patent
active
060363150
ABSTRACT:
Optically superior eyeglasses comprising a frame and a pair of lenses which are attached to the frame and are positionable over respective ones of the wearer's eyes. Each of the lenses defines an optical center and comprises a convex front surface having a first radius of curvature and a concave back surface having a second radius of curvature which is less than the first radius of curvature so as to impart a negative power to the lens. The frame is sized and configured such that when positioned upon the wearer's head, the lenses are supported thereby in a manner wherein the normal line of sight of each of the wearer's eyes crosses the back surface of a respective one of the lenses at a selected wrap angle and at a location nasal to the optical center thereof so as to induce a base-in prism effect.
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