Researchers at the Fraunhofer Institute have developed bidirectional OLED microdisplay eye-controlled data glasses.  Users can view the real world while browsing a large amount of virtual information and turn pages with their eyes.
Integrated camera sensors register the direction of the wearer’s eye movements and an image processing program calculates the exact position of their pupils in real time.  An infrared light source in the glass frame produces accurate positioning results even in low light.
The glasses can enable elderly and disabled people to attract attention in emergencies using nothing but their eyes – or simply provide a way to change the TV channel using specific eye movements." Read more