Soft bifocal contact lens

Details Soft bifocal contact lens Soft bifocal contact lens

1990-10-03

1991-12-10

Sugarman, Scott J.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Ophthalmic lenses or blanks

351160H, G02C 704

Patent

active

050712446

ABSTRACT:
A soft bifocal contact lens has a carrier lens of soft plastic material shaped and dimensioned to an eye of a user. A central portion of the carrier lens is formed to provide distance-vision correction for the eye of the user. An auxiliary lens smaller than the carrier lens is attached adjacent a lower edge of the carrier lens, and formed to provide near-vision correction for the eye of the user. The auxiliary lens has a contour of a lower edge thereof for contacting a lower eyelid of the user to translate the carrier lens upward when the user moves the eye downward for close vision.

REFERENCES:
patent: 3973837 (1976-08-01), Page
Brager, J. L.; "Contact Lenses for the Presbyope"; The Optometric Weekly; vol. 55; No. 22; May 28, 1964; pp. 22-24.
Taylor, C. M.; "The McKay Taylor Additive Bifocal"; The Optician; vol. 143, No. 3715; Jun. 15, 1962; pp. 585-587.

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