Multi-focal intra-ocular implant

Details Multi-focal intra-ocular implant Multi-focal intra-ocular implant

1993-03-09

1994-09-06

Green, Randal L.

Prosthesis (i.e., artificial body members), parts thereof, or ai

Eye prosthesis

Intraocular lens

351161, A61F 216

Patent

active

053444485

ABSTRACT:
A snap-together arrangement for a multi-focal lens is provided for use as an artificial lens implant in an eye from which the cataractous natural lens has been removed. The lens includes concentric lens portions secured together by an engagement arrangement to engage adjacent lens portions. Haptic members are provided to secure the lens in the eye.

REFERENCES:
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patent: 3270099 (1966-08-01), Camp
patent: 4010496 (1977-03-01), Neefe
patent: 4402579 (1983-09-01), Poler
patent: 4435856 (1984-03-01), L'Esperance
patent: 4451938 (1984-06-01), Kelman
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patent: 4619657 (1986-10-01), Keates et al.
patent: 4636210 (1987-01-01), Hoffer
patent: 4636211 (1987-01-01), Nielsen et al.
patent: 5026396 (1991-06-01), Darin
patent: 5089024 (1992-02-01), Christie et al.
Publication entitled "Ultrafocal.RTM. Bifocal Contact Lens", by Claud A. Kendall, pp. 31-35, dated Jan. 1976. Labelled Exhibit "A".

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