Contact lens design

Details Contact lens design Contact lens design

1996-06-07

2000-08-08

Sugarman, Scott J.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Ophthalmic lenses or blanks

G02C 704

Patent

active

060991216

ABSTRACT:
A contact lens includes an anterior surface and a posterior surface where the posterior surface includes a central zone and a peripheral zone, where the radius of curvature of the central zone is at least 0.4 mm, and preferably at least 0.6 mm, greater than the radius of curvature of the peripheral zone.

REFERENCES:
patent: 4787732 (1988-11-01), Siviglia
patent: 4861152 (1989-08-01), Vinzia et al.
patent: 4952045 (1990-08-01), Stoyan
patent: 5191365 (1993-03-01), Stoyan

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