Such tech has been around a long time. There are plenty of research papers and other systems out already. That future is already here.
Have you all heard about eye gazing technology?? I just read an article about how it could eliminate touch screens. I read it here: http://www.web2carz.com/tech/everything-else/1640/gaze-based-interaction-could-eliminate-touch-screen-tech
So I would be able to control my computer with my eyes? This seems very futuristic.