Multifocal contact lens

Details Multifocal contact lens Multifocal contact lens

2011-02-22

2011-02-22

Schwartz, Jordan M. (Department: 2873)

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Ophthalmic lenses or blanks

C351S16000R, C351S177000

Reexamination Certificate

active

07891810

ABSTRACT:
The present invention provides a multifocal contact lens comprising a central contact lens area having a size, a position, and an optical power; an outer contact lens area having a size, a position, and an optical power; wherein the size, the position, and the optical power of the central contact lens area and the outer contact lens area are determined according to a measurement of the size of the pupil under a first light condition, a measurement of the reactivity of the pupil under a varying light condition or a varying focal demand, and a measurement of movement of the pupil under a varying light condition or a varying focal demand.

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