There's a lot of research to help the spinal cord or stroke-injured become more self-sufficient, but it often takes some exotic paraphernalia. To buck that trend, scientists from Imperial College London showed that subjects could perform relatively hard tasks like writing messages and playing Pong using eye movement - with a mere $35-worth of parts. They even showed how well the system worked, with subjects scoring within 20 percent of an able-bodied person after a scant 10 minutes of practice.
Engadget , Researchers use off-the-shelf parts to let you write emails with your eyes (video), Researchers use off-the-shelf parts to let you write emails with your eyes (video)
