DEFORMABLE INTRAOCULAR MULTI-FOCUS LENS

Title:

DEFORMABLE INTRAOCULAR MULTI-FOCUS LENS

Document Type and Number:

WIPO Patent Application WO2003034949

Kind Code:

A3

Abstract:

An intraocular corrective lens (8), comprising an optical portion (9) having a normal shape constructed of a material which is biologically compatible with the natural lens of the eye and for positioning anterior thereof, or in replacement thereof; said optical portion also having an anterior convex lenticular surface (10) and a posterior surface (20), wherein said posterior surface comprises a central disk (21) which is radially surrounded by a series of annular rings (22), said central disk and said series of annular rings forming a series of radial steps along said posterior surface; wherein said posterior surface and said anterior lenticular surface have a minimum separation of 0.025 mm and a maximum separation of 0.1 mm; the central disk being of one diopter power and at least one annular ring is of a second diopter power; and at least one anchor attached to said optical portion.

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Inventors:

CALLAHAN WAYNE B
CALLAHAN JEFFERY SCOTT

Application Number:

PCT/US2002/033784

Publication Date:

February 26, 2004

Filing Date:

October 22, 2002

Export Citation:

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Assignee:

THINOPTX INC (US)

International Classes:

A61F2/16; (IPC1-7): A61F2/16

Foreign References:

US6277146B1	2001-08-21
US5800532A	1998-09-01
US4923296A	1990-05-08
US5019098A	1991-05-28

Other References: