An intraocular lens includes an optical portion (7 607 907 1107) of a transparent, deformable material, at least one haptic (5, 6 205, 206 405, 406, 706 806 905 1005 1105 1205) radially projecting from the optical portion for supporting the optical portion in a position parallel to and against an anterior iris surface plane (936 1136), and at least one aperture (13 213 713 913 1013 1113) bounded by the haptic. At least a stiff portion of the haptic has a higher stiffness against bending about an axis in the radial direction than the optical portion. furthermore, the stiff portion has a width (α) measured parallel to the plane and perpendicular to the radial direction, which is smaller than the size (b) of the optical portion in the direction of the width. An instrument and methods for preparing and carrying out insertion of such a lens are also described.
