INTRAOCULAR LENSES

摘要

A refractive anterior chamber intraocular lens including an optic portion having an outer peripheral edge an two or more but preferably three or four haptic elements. Each haptic element is of like form. Each haptic element is also manufactured to have an inner portion and an outer portion for supporti ng the optic portion in a patient's eye. The inner portion of each haptic eleme nt is preferably permanently connected to the outer peripheral edge of the opti c portion. Each haptic element also includes a contact button and a central portion located between the contact button and the inner portion. Each hapti c is formed to have greater resistance to bending in a plane generally paralle l to an eye's optical axis than in a plane generally perpendicular to the eye' s optical axis. The intraocular lens is so designed to exhibit less than approximately 1.0 mm axial displacement of the optic portion along the eye's optical axis under a compression force suitable to effect a 1.0 mm in diamet er compression of the intraocular lens.