1. A computer-operated system comprising: a visual prosthesis including a video processing unit and a plurality of electrodes suitable to stimulate visual neurons; a computer with a display component, the display component having a graphical user interface providing for control of a video configuration file, by a video configuration file editor; a video configuration file downloadable to or from the video processing unit, the video configuration file defining spatial mapping of a video signal captured from a camera of the visual prosthesis to an electrical signal for one or more electrodes of the plurality of electrodes.