Intraocular lens and method for making same

Details Intraocular lens and method for making same Intraocular lens and method for making same

1985-08-01

1987-06-30

Apley, Richard J.

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

Eye prosthesis

Intraocular lens

A61F 216

Patent

active

046767916

ABSTRACT:
A colored ringed or rimmed edge intraocular lens for implant in either the anterior chamber, the posterior chamber or the cornea of the eye. The lens has a colorless or clear central region of a material such as polymethylmethacrylate (PMMA) and a peripheral surrounding portion of a dark material such as blue PMMA. Polysulfone can also be utilized. The lens can be fabricated by passing a clear rod of optical quality PMMA through an extrusion orifice and coating the circumference of the rod with a layer of predetermined thickness of colored, preferably blue PMMA or other compatible material. Other methods of fabrication can include the introduction of a suitable dye into the outer regions of the rod, or joining the clear central region to a ring of colored material by thermal or adhesive bonding or other known processes.

REFERENCES:
patent: 4596578 (1986-06-01), Kelman
patent: 4605409 (1986-08-01), Kelman
American IOLLens Style Sheet (Dec. 29, 1981), 623-6.
Rayner & Heeler Catalogue Lens Style Sheet (7/31/1978), 623-6.

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