Multifocal intraocular lenses

Details Multifocal intraocular lenses Multifocal intraocular lenses

1990-10-12

1992-05-12

Frinks, Ronald

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

Eye prosthesis

Intraocular lens

351161, 351168, 351169, A61F 216, G02C 704, G02C 706

Patent

active

051123517

ABSTRACT:
A multifocal intraocular lens is produced which comprises a lens body having a plurality of optical zones which comprises an aspheric optical zone between each add and base power zone thereby providing a gradual transition in the curvature of the optic surface and avoiding abrupt changes in the curvature of the optic.

REFERENCES:
patent: 4769033 (1988-09-01), Nordan
patent: 4830481 (1989-05-01), Futhey et al.
patent: 4898461 (1990-02-01), Portney
patent: 4917681 (1990-04-01), Nordan
Article Published in Journal of Cataract and Refractive Surgery Jan. 1988 (pp. 17-24), author Jack T. Holladay, M.D.

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