Two-piece intraocular lenses with shape-changing optic

A two-piece intraocular lens (IOL) having an optical axis extending in an anterior-posterior direction, an equator extending in a plane substantially perpendicular to the optical axis, an accommodated state, a dis-accommodated state, and states therebetween, the IOL comprising:

• a base comprising a plurality of actuating haptics, each having a lateral end, a medial end, and an intermediate section extending between the lateral end and the medial end;
• and
• an anterior shape-changing exchangeable optic comprising:
• an elastic anterior face located anterior to the equator and having a periphery;
• an attachment member located about the periphery or extending from the periphery and releasably connected to the medial end of at least some of the plurality of actuating haptics;
• a posterior face;
• an elastic side wall extending from the anterior face to the posterior face;
• and
• a chamber located between the anterior face and the posterior face and containing material.