A device (10) for implanting an intraocular lens in the lens capsule of an eye, the device (10) comprising: a tubular envelope (15) having a primary axis extending between the front and rear ends of the envelope (fifteen)； a plunger (32) disposed longitudinally within the envelope (15) and having first and second ends, the first end being disposed toward the front end of the envelope (15)； an electric drive system (38) disposed within the enclosure (15), the electric drive system (38) including an electric motor (42) and configured to cause the longitudinal translation of the piston (32) along the primary axis of the envelope (15)； a cartridge mount (18) at or near the front end of the envelope (15) and configured to accommodate a detachable insert cartridge (20) aligned with the plunger (32) such that an intraocular lens disposed in the insert cartridge (20) is displaced from insertion cartridge (20) when the piston (32) is moved towards the front end of the envelope (15)； and a control circuit (100), electrically connected to the electric motor (42) and configured to initiate translation of: the piston (32) in response to the user input, characterized in that the control circuit (100) is configured to detect at least one fault condition based on a counter-electric force produced by the electric motor (42), and to stop the translation of the piston (32) in response to the fault condition detected, and the control circuit (100) It is configured to follow the longitudinal position of the piston (32) based on the counter-electric force produced by the electric motor (42) and to detect the at least one fault condition based on the longitudinal tracking position.Un dispositivo (10) para implantar una lente intraocular en la cápsula de lente de un ojo, el dispositivo (10) que comprende: una envolvente (15) tubular que tiene un eje primario que se extiende entre los extremos delantero y trasero de la envolvente (15)； un émbolo (32) dispuesto longitudinalmente dentro de la
