23.05.12
You be informed that you can control your laptop with your mouse, trackpad, and keyboard--and you may even know that you can control your laptop with your spokeswoman, and maybe elaborate gestures thanks to motion-tracking devices such as Microsoft's Kinect. But did you be familiar with that you can also control your laptop with your eyes?
Sweden-based Tobii Technology has developed eye-tracking technology that allows you to control your laptop and other devices using only your eyes. Critically, just your eyes--you don't even have to put on ugly glasses or a weird head thingamabob, all you have to do is sit down in front of the computer.
Tobii is built into the laptop, which is made by Lenovo, and is located below the screen. It's literally pretty simple (well, sort of). It works by shooting infrared lights into your eyes to case red-eye (sounds dangerous, I know, but they assure me it's perfectly safe). By doing this, Tobii is competent to create a 3D model of your eyeball and determine where your eye is relative to space. It then tracks the glint off of your eyeball to condition where your foveal vision, or sharp central vision, is, and, consequently, where you're looking.
Source: PCWorld