Visual prosthesis system to display video images and text data

System visual prosthesis, comprising: - a retinal implant (1) configured to at least partially dispose inside the ojode a patient, the retinal implant (1) comprising a set (3, 23) microcontactosadaptado to contact with lymph the retinal tissue of the patient, - a processing unit data (7, 31) with an interface for receiving an external signal deuna external signal source (32, 34, 36, 46, 54), the unit being adapted of procesamientode data (7, 31) to convert the external signal into data corresponding stimulation elimplante retinas (1), - a wireless transmission unit adapted to transmit data alimplante stimulation retina (1) through a transmission wireless, - the retinal implant (1) being adapted to receive stimulation data and stimulate losmicrocontactos according to stimulation data, including the processing unit data a character recognition unit, adaptadapara recognize characters in a bitmap image provided by the external signals, and to convert the bitmap image into text data.