2nd company to do this, different technology. No batteries this time.
http://www.scienceblog.com/cms/node/6906
The Artificial Silicon RetinaTM (ASR) was invented by Dr. Alan Chow......
Some patients have experienced improvement in activities of daily living such as improved ambulation-not bumping into objects around the house, and reading the time on a clock."
Here are their competitors:
http://www.bostonretinalimplant.org/