Active retinal implant

The invention relates to an active retinal implant for implantation in an eye, comprising an array of stimulation electrodes (17) that produce the stimulation signals to cells of the retina. There is at least one signal generator (31) is provided which generates at least a continuous sinusoidal stimulation signal that includes at least one adjustable signal parameters, and that the at least one signal generator (31) electrically connected to at least one stimulation electrode (17) is in communication.