Launch Apps on Windows 8 By Just Looking at Them with Tobii Gaze

Tobii has created a new system called Gaze that allows users to look at tiles on Windows 8 to open them. It requires the click of a mouse but has the technology built in to know which tile you are looking at.

The system is able to emulate every swipe motion in Windows 8 (all seven of them). It works by using a tracking camera that connects up to the PC via a USB port. When connected the software is loaded up, configured and then your eyes can be tracked.
Take a look at the video below to see it in action: