Intraocular lens with high magnification

Details Intraocular lens with high magnification Intraocular lens with high magnification

1976-09-08

1978-02-21

Frinks, Ronald L.

350211, 350212, A61F 116, A61F 124

Patent

active

040743683

ABSTRACT:
A sub-miniature optical system, based in principle on the Galilean telescope, for implantation in the eye following surgical removal of the natural lens. The system is made of methyl methacrylate and includes so-called air-lenses formed by bubbles defined by optically curved surfaces within the acrylic bodies. The positive element is surgically secured adjacent to the pupil. The negative element is mechanically connected to the positive element, and extends from it to within a few millimeters of the retina at the rear of the eye. The strength of the positive element is approximately 126 diopters for cases where the cornea is retained, and the strength of the negative element is about -2000 diopters, more or less, depending on its spacing from the positive element.

REFERENCES:
patent: 3572886 (1971-03-01), Cupertino et al.
patent: 3673616 (1972-07-01), Fedorov et al.
patent: 4010496 (1977-03-01), Neefe
"Artiphakia and Aniseikonia" by R. C. Troutman, American Journal of Ophthalmology, vol. 56, No. 2, Oct. 1963 pp. 602-639, 3-13.

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