An accommodating intraocular lens is provided having optical parameters that are altered in-situ, wherein an optic portion of the lens includes a lens piston that alters the shape of a lens element of the lens to alter the optical power of the lens, responsive to forces applied to a haptic portion to...http://www.google.es/patents/US7261737?utm_source=gb-gplus-sharePatente US7261737 - Accommodating intraocular lens system and method
