Contact lens

Details Contact lens Contact lens

1975-05-07

1978-04-18

Clark, Conrad J.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Ophthalmic lenses or blanks

G02C 704

Patent

active

040848906

ABSTRACT:
A contact lens formed from a soft, flexible, hydrophilic, cross-linked polymeric material. The lens has a centrally located optical zone and an outer peripheral portion that has its maximum thickness intermediate the juncture of that portion with the optical zone and the thin edge of the lens.

REFERENCES:
patent: 2241415 (1941-05-01), Moulton
patent: 2544246 (1951-03-01), Butterfield
patent: 3660545 (1972-05-01), Wichterle
patent: 3698802 (1972-10-01), Baron
Mandell, Article in "Journal of the American Optometric Assoc.," July 1968, pp. 641 & 642.
Minisculent Contact Lens Advertisement in "Optical Journal & Review of Optometry," Mar. 15, 1961, pp. 30 & 31.
Morrison, Article in "Journal of the American Optometric Assoc.," Mar. 1966, pp. 211-218.

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