Multifocal soft contact lens with horizontally decentered...

Details Multifocal soft contact lens with horizontally decentered... Multifocal soft contact lens with horizontally decentered...

2005-05-24

2005-05-24

Sugarman, Scott J. (Department: 2873)

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Ophthalmic lenses or blanks

C351S16000R

Reexamination Certificate

active

06896368

ABSTRACT:
A multifocal soft contact lens has a main carrier lens with a distance vision axis coincident with its geometric center and extending transversely through the intersection of transverse horizontal and vertical reference axes, and a smaller near vision lenslet supported on the carrier lens. The lenslet has a near vision axis extending through the horizontal reference axis in a nasally decentered relationship with the distance vision axis. To facilitate the proper rotational placement of the lens on the eye of a wearer, a nasal indicator mark is appropriately formed on the horizontal reference axis of the lens in a nasally offset relationship with the carrier lens center.

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Borish, “Clinical Refraction” (1975) -pp. 648-649.

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