Method of making an intra-ocular lens

Details Method of making an intra-ocular lens Method of making an intra-ocular lens

1977-03-23

1978-03-28

DiPalma, Victor A.

Metal working

Method of mechanical manufacture

Obtaining plural product pieces from unitary workpiece

3 13, 29450, 29453, 29513, 29509, 29DIG16, 156645, 156664, 156625, B23P 1700, A61F 116, A61F 124

Patent

active

040807096

ABSTRACT:
The invention contemplates improved techniques for making lens implants for use in ophthalmological surgery, the lens being a replacement for a cataract-clouded natural lens, and the replacement being installed in the pupil at the iris as the operative step following removal of the cataracted lens. The lens produced by the inventive method features adapter structure assembled to an intra-ocular lens element and having first and second pluralities of radially outward stabilizing feet, in angularly spaced and interlaced relation with the feet of the other plurality; and the respective pluralities of stabilizing feet are on opposite sides of the iris, thus enabling the iris to retain and position the implanted lens.

REFERENCES:
patent: 2437228 (1948-03-01), Mears et al.
patent: 2754520 (1956-07-01), Crawford
patent: 2834023 (1958-05-01), Lieb
patent: 3925825 (1975-12-01), Richards et al.
patent: 3959527 (1976-05-01), Droege
"Artiphakia & Aniseikonia," by Richard Troutman, American Journal of Opthalmology, vol. 56, No. 2, Oct. 1963, pp. 602-639.

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