Tobii's Rex Turns Your Eyes Into a Mouse

LAS VEGAS - We had the mouse. Then we had the trackpad. Then we had the touchscreen. And now we've got the eye. OK, we always had the eye, but a company named Tobii has figured out a way to use your eyes as the navigation tool on computers.
Here at CES 2013 the company announced the Rex, a computer accessory about the length of a straw that attaches to any computer display. It then brings eye-tracking to that computer, allowing you to open a document by just looking at it or scroll down the page just by looking down. It's pretty amazing stuff. After a short calibration process, look at a slide in a PowerPoint, press the spacebar as you are looking at it and it opens. Look at a location on Google Maps, use your mouse to zoom and it will zoom right in on that location - not somewhere to the east or west, which happens more often than not.