Hybrid corneal contact lens

Details Hybrid corneal contact lens Hybrid corneal contact lens

1976-06-14

1979-08-28

Corbin, John K.

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Ophthalmic lenses or blanks

351160R, G02C 704

Patent

active

041662555

ABSTRACT:
A hybrid corneal contact lens comprising a substantially rigid central optical area surrounded by and/or embedded in a relatively soft transparent plastic component, and methods of constructing the same, the lens having the unique features of retaining the optical configuration imparted to the central optical portion, yet possessing a flexible feather-edged periphery, thereby providing a safer and more comfortable fit for the eye.

REFERENCES:
patent: 3488111 (1970-01-01), Isen
patent: 3619044 (1971-11-01), Kamath
patent: 3660545 (1972-05-01), Wichterle
patent: 3816160 (1974-06-01), Moore
patent: 3916033 (1975-10-01), Merrill
patent: 3933411 (1976-01-01), Winner
patent: 3944347 (1976-03-01), Barkdoll et al.
patent: 3973837 (1976-08-01), Page
Ziegler, J. F., "Fabrication or Correction of Optical Lenses," IBM Technical Disclosure Bulletin, Mar. 1970, pp. 1573-1575.
William E. Long, "An Update . . . " Contacts, 5/1974, pp. 35-37.
Optometric Weekly, p. 14, 8-22-74.

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