StarCraft II is a game of some serious mouse clicking, but what if there was a way that you could play the games by just moving your eyeballs and pressing a single button? Well, Tobii has some very cool eye-tracking system that uses an infrared tracking camera and an infrared illuminator to pinpoint the precise location of your pupils.
Dvice are the ones behind the report, where they've said:
The thing to remember here is that all of these actions are entirely independent of the location of the mouse cursor. Effectively, you're getting a second cursor, controlled by wherever you look, to use at the same time as the mouse. For example, you can target a Psi Storm with your eyes while simultaneously using your mouse to select and move your High Templar to safety. And as Fredrik points out, when you move around the map with your gaze, your mouse never has to leave your units and your fingers never have to leave your hotkeys.