This content has been downloaded from IOPscience. Please scroll down to see the full text. Download details: IP Address: 129.93.16.3 This content was downloaded on 06/11/2014 at 04:34 Please note that terms and conditions apply. Improved visual performance in letter perception through edge orientation encoding in a retinal prosthesis simulation View the table of contents for this issue, or go to the journal homepage for more 2014 J. Neural Eng. 11 066002 (http://iopscience.iop.org/1741-2552/11/6/066002) Home Search Collections Journals About Contact us My IOPscience