Gaze-based technology has been around for years, but it could on the shelves sooner than you might imagine. A Danish firm, The Eye Tribe, has for about a year been trying to develop mobile devices that people can control with their eyes.
“You have infrared light that is projected toward your face,” Sune Alstrup Johansen, usability expert of the Gaze Group at the IT University of Copenhagen, explained in a National Public Radio report. “And the infrared light is then reflected in your pupil. And by seeing those reflections we can pretty easily—well, not easily—with our algorithms, we can easily calculate where you’re looking.”
The Eye Tribe has even created a variation on the gaming app Fruit Ninja, in which the user slices flying fruit with his eyes instead of a swipe of the touchscreen.