Contact lens with palpebral bosses

Details Contact lens with palpebral bosses Contact lens with palpebral bosses

1998-03-09

1999-06-15

Sugarman, Scott J.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Ophthalmic lenses or blanks

351161, 351177, G02C 704

Patent

active

059127198

ABSTRACT:
A contact lens has at least one palpebral boss projecting locally from its external surface in its peripheral area. The palpebral boss is globally elongate in a circumferential direction and the slope P of its crest line at both circumferential ends is in the range 0.020 to 0.140 and preferably in the range 0.040 to 0.080. Applications include contact lenses for centered optical correction and contact lenses for presbyopia.

REFERENCES:
patent: 3698802 (1972-10-01), Baron
patent: 4859049 (1989-08-01), Muller
patent: 5100225 (1991-03-01), Rothe
patent: 5125728 (1992-06-01), Newman et al.

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