Over the past decade, Sweden’s Tobii has been working on adding eye-tracking technology to a mix of user inputs that includes keyboards, mice and touchpads and screens. After demonstrating its GAZE UI for Windows 8 at last year’s CES, the company is set to showcase its first eye-tracking consumer peripheral device which brings the GAZE functionality to any Windows 8 PC at CES 2013. By tracking their eye movements, the Tobii REX allows Windows 8 users to scroll, zoom, navigate and select using their peepers in conjunction with a mouse or touchpad.
http://www.gizmag.com/tobii-rex-eye-tracking/25616/