Patent ID: 6926744

Claim:
A single-piece intraocular implant for a capsular bag, said implant comprising: a circular optical portion having an optical axis, a periphery having at least one connection zone extending over a significant part thereof, an anterior optical surface, a cylindrical peripheral surface having a diameter, and being disposed parallel to said optical axis, said cylindrical peripheral surface having a length h measured parallel to said optical axis, said cylindrical peripheral surface being free of any other portion of the implant except in said connection zone, and a posterior optical surface defined by a spherical cap; at least one haptic element, each said haptic element having a posterior face and a connection end for connection to a respective one of said connection zones of said periphery of said optical portion; and at least one radial extension disposed completely within each said connection zone between the circular optical portion and the haptic element and projecting out of said cylindrical peripheral surface, each said radial extension having an anterior face, a side face disposed on a ruled surface having a diameter D2, said diameter D2 being greater than said diameter of said cylindrical peripheral surface, said side face having a length h′ measured parallel to said optical axis and being substantially equal to said length h of the cylindrical peripheral surface, and a posterior face disposed in said spherical cap; wherein said connection end of each said haptic element is connected to said periphery of said optical portion via said anterior face of a corresponding one of said radial extensions outside said anterior optical surface of said circular optical portion; and whereby each said radial extension constitutes a step formed by the offset between said posterior optical surface of said circular optical portion and said posterior face of each said haptic element, and said side face of each said radial extension forms a square-edged portion with said posterior face of said radial extension.