Patent ID: 6110202
Filing Date: 2000-08-29
Classification: A61F

Abstract:
A posterior-chamber intraocular implant for correcting short-sightedness in a phakic eye, having a natural lens, said implant comprising:a substantially circular optical portion comprising a front dioptric surface and a rear dioptric surface and having a periphery and an optical axis;at least two extensions having an inner edge connected to the periphery of the optical portion and an outer edge, a maximum distance between the outer edges of the extensions being greater than a diameter of a dilated pupil, each extension having a front surface and a rear surface, the front surface of each extension comprising a toroidal portion joined to the front dioptric surface for allowing a posterior face of an iris of an eye to slide on said implant, the rear surface of each extension comprising a toroidal portion connected to the rear dioptric surface, the toroidal portion of the rear surface being structured to engage a periphery of a lens of an eye, and a connecting portion for connecting the toroidal portion with the outer edge of the extension, the connecting portions of the at least two extensions being contained in a common surface, the rear dioptric surface and the toroidal portions of the rear surfaces of said extensions defining a recess with respect to the common surface for allowing a free altering of a curvature of a front surface of a natural lens of an eye; andat least two attachment portions distinct from the at least two extensions, each attachment portion having a first end connected to the outer edge of an associated extension and a second end being structured to be in contact with an inner wall of a posterior chamber of an eye.