Photovoltaic retinal prosthesis with high pixel density Mathieson, Keith ; Loudin, James ; Goetz, Georges ; Huie, Philip ; Wang, Lele ; Kamins, Theodore I. ; Galambos, Ludwig ; Smith, Richard ; Harris, James S. ; Sher, Alexander ; Palanker, Daniel Abstract Publication: Nature Photonics Pub Date: December 2012 DOI: 10.1038/nphoton.2012.327 Bibcode: 2012NaPho...6..872M