During Ars' review playthrough of the latest adventure in the Deus Ex series, I spied a curious option tucked into its Windows menus: "Tobii eye-tracking." None of Square Enix's press materials mentioned such a thing, which seemed strange for a series that revolves around human augmentation and sci-fi upgrades. Eye-tracking in an FPS? Sounds like some futuristic stealth-spy stuff!
The word "Tobii" perked up my coworkers' ears, as they'd tested simple prototypes of the eye-tracking doodad at various Consumer Electronics Shows. Deus Ex presented a great opportunity to test the add-on's full potential, and Tobii was kind enough to send loaner hardware. We wanted to find out: Just what does an eye-tracking sensor do for computer users—how does it translate the gaze of your eyes to real-world computer use—and does it work well enough to earn a $140 price tag?
from Augmenting the FPS: How well does Tobii track your gaze in a video game?