Eye tracking has been actively discussed by technology enthusiasts throughout these years, but it’s really challenging to implement. But Eye Tribe actually did this. Eye tracking can be used in a wide variety of applications typically categorized as active or passive. Active applications involve device control, for example aiming in games, eye activated login or hands-free typing. Passive applications include performance analysis of design, layout and advertising. Other examples are vehicle safety, medical diagnostics and academic research.They successfully created the technology to allow you to control your tablet, play flight simulator, and even slice fruits in Fruit Ninja only with your eye movements.