An artificial retinal prosthesis is disclosed, which comprises a plurality of pixel group units to output a spatiotemporal electrical stimulation for inducing color perception. Each of the pixel group units comprises a main pixel unit and at least one surrounding pixel unit. The main pixel unit and the surrounding pixel unit respectively outputs an electrical stimulation waveform according to a first stimulation cycle and a second stimulation cycle. Both of the first stimulation cycle and the second stimulation cycle have a first-half duration and a second-half duration. The first-half duration of the first stimulation cycle has inactive period greater than 20% and less than 80% and the rest of the first stimulation cycle is active period. The second-half duration of the first stimulation cycle is inactive period. The first-half duration of the second stimulation cycle is active period and the second-half duration of the second stimulation cycle is inactive period.
ARTIFICIAL RETINAL PROSTHESIS FOR PROVIDING COLOR VISUAL PERCEPTION