Abstract: The diaphragm consists of essentially rigid planar elements that are divided on at least one fold line (14). The division is bridged with an elastic material that enters into an adhesive connection with the planar elements, that allows the diaphragm to be folded in half elastically, and the latter is suitable for unfolding back into its original position by means of its inherent elasticity. Thus, the diaphragm has shape memory and an elastic shape stability.

Abstract: Diaphragms that can be implanted in the anterior section of a human eye, individually or combined with one another, in order to create an artificial pupil opening, are part of a modular iris prosthesis system. At least one diaphragm that can be implanted in endocapsulary manner, at least one diaphragm that can be implanted in sulcus-positioned manner, and at least one diaphragm that can be implanted in iris-enclaved and/or sclera-fixed manner are provided.

Abstract: The fixation ring has a flat annular body that has a central circular aperture (10). Two haptic stirrups (18) that lie opposite one another are attached to the annular body, which are angled upward from the ring plane, and outwards parallel to it. The annular body can be folded in half, and thereby reduced in its outside dimensions. It is suitable for unfolding into its flat original position again by means of its inherent elasticity.

Abstract: The diaphragm (10, 12) for creating an artificial pupil aperture is functionally decoupled from a capsule bracing ring. Together with an artificial lens, it can be implanted substantially without stress in the lens capsule sac of an eye.