An accommodating intraocular lens implant is provided that is shaped so as to be assemblable into an assembled state in situ in a capsular bag of a human eye, and includes an anterior floating lens unit, which comprises an anterior lens； a posterior lens unit, which comprises a posterior lens； an anterior rim； levers, arranged to move the anterior floating lens unit toward and away from the anterior rim, in an anterior-posterior direction； and a circumferential rim, which is attached to the levers. The lens implant is arranged such that in the assemble state: elastic potential energy is stored in the lens implant as a result of deformation of the lens implant during a transition from a fully-accommodated state to a fully-unaccommodated state, and at least 50% of the elastic potential energy stored in the lens implant as the result of the deformation is stored in the circumferential rim.
