Patent ID: 6786928
Filing Date: 2004-09-07
Classification: A61F

Abstract:
An intraocular Lens, comprising:an optical portion having a first optical surface, wherein the optical portion is constructed of a material which is biologically compatible with a tissue of an eye, the optical portion having a predetermined maximum thickness under which the material may be rolled without exceeding the elastic limit of the material, said optical portion having a predetermined minimum thickness above which the material retains a normal shape, wherein the intraocular lens is capable of deforming for passage through an incision having a length smaller than about 1.5 millimeters so that the intraocular lens is placed into the eye; the optical portion having a second optical surface, wherein the second optical surface comprises a central disk which is radially surrounded by a series of annular rings, the central disk and the series of annular rings forming a series of radial steps along the second optical surface so that a focal length from an annular ring is adjusted to focus at a same point as a prime meridian of the lens, wherein the second optical surface and the first optical surface have a minimum separation of 0.025 mm and a maximum separation of 0.45 mm; and an anchoring portion attached to the optical portion, wherein the anchoring portion is constructed of a material, which is biologically compatible with a tissue of an eye, wherein the anchoring portion is capable of biasing against a support structure of the eye.