The Argus II artificial retina implant helps patients distinguish light from dark, and is hopefully on a path to restoring full vision.
Read more about this amazing technology in the following article written by Corie Lok on nature.com: http://www.nature.com/news/curing-blindness-vision-quest-1.15875
This college student invented a vibrating vest that can warn the blind whenever they come too close to an obstacle! Might become a good alternative to canes and guide dogs! Visit this article for more details: http://www.i24news.tv/en/mobile#content/41979