R. Williamson

Visual Perception in Blind Subjects with Microelectronic Retinal Prosthesis

Manjunatha Mahadevappa, D. Yanai, Robert J. Greenberg, 2003 .

Visual perception in a blind subject with a chronic microelectronic retinal prosthesis

Gislin Dagnelie, James D. Weiland, Richard Williamson, 2003, Vision Research.

Visual task performance in blind humans with retinal prosthetic implants

M.S. Humayun, M. Mahadevappa, D. Yanai, 2004, The 26th Annual International Conference of the IEEE Engineering in Medicine and Biology Society.