The present invention relates to a redundant light suppression subretinal prosthetic device and a signal generating method. More particularly, the present invention relates to a subretinal prosthetic device and a signal generating method for preventing an overcurrent from interfering with a user's vision due to redundant light which enters from the surroundings when a prosthetic retina receives light and generates a signal. The redundant light suppression subretinal prosthetic device comprises: a light receiving unit for recognizing light and generating currents of different magnitudes according to the intensity of the light; a light receiving array in which a plurality of the light receiving units are arranged for each pixel; a comparison unit for checking a minimum magnitude current value among currents generated in the plurality of light receiving units; and an adjustment unit for reducing each current generated by all of the light receiving units of the light receiving array by the minimum magnitude current value.
REDUNDANT LIGHT SUPPRESSION SUBRETINAL PROSTHETIC DEVICE AND SIGNAL GENERATION METHOD