A retinal prosthesis system according to an embodiment includes a converter, a retinal prosthesis, and a transmitter. The converter is placed in an eye, and transmits part of light incident on the eye therethrough while converting the energy of the other part of the light into electrical energy. The retinal prosthesis is placed in the eye and includes a photoelectric conversion element array configured to operate with the electrical energy received from the converter to detect the light having transmitted through the converter to generate an electrical signal. The transmitter is used to send the electrical signal generated by the retinal prosthesis to the visual cortex of the brain.
