Method of forming single-piece intraocular lens and core member

Details Method of forming single-piece intraocular lens and core member Method of forming single-piece intraocular lens and core member

1987-04-03

1989-03-21

Frinks, Ronald L.

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

Eye prosthesis

Intraocular lens

623901, 264 17, A61F 216, B29D 1100

Patent

active

048139564

ABSTRACT:
A method of forming single-piece intraocular lenses comprising the steps of forming a thin sheet of colored polymethyl methacrylate, coring the sheet to form holes therein, filling the holes with a clear or differently colored PMMA material, polymerizing the colored and clear or differently colored PMMA material comprising the sheet and filled holes, cutting core members from the polymerized sheet each having an inner circular region of PMMA material and an outer region of colored PMMA material and machining a single-piece intraocular lens from a core member to have a central lens body of PMMA material and colored PMMA positioning loops extending from and integral with the central lens body.

REFERENCES:
patent: 3034403 (1962-05-01), Neefe
patent: 4102567 (1978-07-01), Cuffe et al.
patent: 4676791 (1987-06-01), LeMaster et al.
patent: 4687485 (1987-08-01), Lim et al.

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