Accomodative intraocular lens

An apparatus comprising an accommodating intraocular lens implant, which comprises:

• an anterior floating lens unit, which comprises (a) an anterior lens, (b) an anterior lens ring, which has a diameter greater than that of the anterior lens, and (c) rim-connector elements, which are distributed around the anterior lens ring at respective connector sites, and connect the anterior lens ring to the anterior lens such that the anterior lens ring does not directly contact the anterior lens;
• a posterior lens unit, which comprises a posterior lens;
• an anterior rim complex;
• and
• between three and eight levers, which are (a) (i) in jointed connection with the anterior lens ring of the anterior floating lens unit at respective first longitudinal sites along the levers, (ii) in pivotable connection with the anterior rim complex at respective second longitudinal sites along the levers, and (iii) in pivotable contact with the posterior lens unit at respective third longitudinal sites along the levers, and (b) arranged to move the anterior floating lens unit toward and away from the anterior rim complex, in an anterior-posterior direction,
• wherein the accommodating intraocular lens implant is configured such that the anterior lens ring deforms during a transition of the accommodating intraocular lens implant between a fully-accommodated state and a fully-unaccommodated state,
• wherein the lens implant is configured such that the levers move the anterior floating lens unit by a first anterior-posterior distance with respect to the posterior lens unit when the anterior rim complex moves a second anterior-posterior distance with respect to the posterior lens unit, the first distance greater than the second distance,
• wherein the levers are connected to respective lever-ring sites around the anterior lens ring, at the respective first longitudinal sites along the levers, and
• wherein the connector sites and the lever-ring sites are circumferentially offset from one another and alternate with one another around the anterior lens ring.