Posterior chamber intraocular lens

Details Posterior chamber intraocular lens Posterior chamber intraocular lens

1989-02-09

1990-08-21

Frinks, Ronald

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

Eye prosthesis

Intraocular lens

A61F 216

Patent

active

049502905

ABSTRACT:
A one-piece, polymethylmethacrylate (PMMA) posterior chamber intraocular lens (IOL) for reducing posterior capsular opacification (PCO) and optic decentration includes a biconvex optic disc and a single, flexible, generally circular-shaped loop which extends around the periphery of the disc. The loop is radially compressible, i.e., tightens like a spring coil to achieve substantially 360.degree. contact with the peripheral zone of the posterior capsule with the optic disc centered substantially on the visual axis.

REFERENCES:
patent: 4494254 (1985-01-01), Lopez
patent: 4601721 (1986-07-01), Kamerling
patent: 4880427 (1989-11-01), Anis
Cilco Lens Style Sheet, SK-4 Lens, May 1983.
S. O. Hansen, "Posterior Capsular Opacification and Intraocular Lens Decentration", Journal of Cataract and Refractive Surgery, vol. 14, No. 6, pp. 605-623 (Nov. 1988).
"Animal Studies Back Search for Optimal IOL", Ocular Surgery News, vol. 6, No. 23 (Dec. 1, 1988).

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