A device (10) for implanting an intraocular lens in the lens capsule of an eye, the device comprising: a tubular envelope (15) having a primary axis extending between the front and rear ends of the envelope； a plunger (32) disposed longitudinally within the envelope and having first and second ends, the first end being disposed toward the front end of the envelope； an electric drive system (38) disposed within the enclosure, the electric drive system including an electric motor (42) and configured to cause longitudinal translation of the plunger along the primary axis of the envelope； a cartridge mount (18) at or near the front end of the envelope and configured to accommodate a detachable insert cartridge (20) aligned with the plunger so that an intraocular lens disposed in the insert cartridge is displaced from insert cartridge when the plunger moves towards the front end of the envelope； characterized in that the device further comprises a control circuit (100), electrically connected to the electric motor and configured to perform the steps of: advancing (220) the plunger (32) to a critical point where an axial compression force on the lens increases suddenly； retract (230) the plunger from the critical point to a sufficient distance for the intraocular lens material to relax； pause (240) after the plunger retracts to allow the intraocular lens material to relax； advance the piston (250) to the critical point a second time； and continue (260) the advance of the plunger beyond the critical point to implant the intraocular lens.Un dispositivo (10) para implantar una lente intraocular en la cápsula de lente de un ojo, el dispositivo que comprende: una envolvente (15) tubular que tiene un eje primario que se extiende entre los extremos delantero y trasero de la envolvente； un émbolo (32) dispuesto longitudinalmente dentro de la envolvente y que tiene unos primero y segundo extremos, estando dispuesto el primer extremo hacia el extremo delantero de la envolvente ； un
