An accommodating intraocular lens (10) , for use in an eye (40) , is made from flexible,optionally elastic, bio-compatible lens body material surrounding a closedand sealed lens cavity (30) which is filled with bio-compatible optical liquid(38) , optionally a gel. The optical liquid (38) has a refractive index sufficientlyhigh to, in cooperation with the ciliary muscle (50) , focus light, incident onthe eye, on the retina, and to provide accommodation. The curvature of the frontsurface of the lens (12) is deformable, by the pressure expressed by the ciliarybody during the accommodative effort, thus to change the radius of curvatureof the anterior body member (16) and/or the posterior body member (18) , thus providingsmooth focusing, including from far distance in the relaxed state to near distanceof less than 50 centimeters in the accommodative state .
