Four zone multifocal lenses

Details Four zone multifocal lenses Four zone multifocal lenses

2008-05-27

2008-05-27

Stultz, Jessica T (Department: 2873)

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Ophthalmic lenses or blanks

C351S169000, C351S164000, C351S177000

Reexamination Certificate

active

10440967

ABSTRACT:
The present invention provides multifocal lenses containing at least four zones of different refractive power. The zones are positioned such that the wearer is able to use the inferior-most portion of the lens to more clearly, as compared to conventional multifocal lenses, view objects at distances more than 45 cm from the eye.

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PCT International Search Report, dated Oct. 27, 2004, for PCT Int'l. Appln. No. PCT/US2004/014961.

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