*Controlling with HOW you see meshes nicely with augmenting WHAT you see.
http://www.technologyreview.com/view/428554/controlling-a-computer-with-your-eyes/
(...)
"...the Imperial College eye-tracking technology was created with off-the-shelf materials, bringing the cost of the system down to just £40.
"We have built a 3D eye tracking system hundreds of times cheaper than commercial systems and used it to build a real-time brain machine interface that allows patients to interact more smoothly and more quickly than existing invasive technologies that are tens of thousands of times more expensive,” Dr. Aldo Faisal, one of the researchers, said of the project. “This is frugal innovation; developing smarter software and piggy-backing existing hardware to create devices that can help people worldwide independent of their healthcare circumstances."
"The researchers demonstrated how people could play the game of Pong using just eye movements...."
