High-Speed Noninvasive Eye-Tracking System
From: NASA Tech Briefs Insider - 12/13/2007

NASA's Jet Propulsion Laboratory has developed a system of electronic
hardware that noninvasively tracks the direction of a person's gaze in real
time. The system operates at a frame rate of several kilohertz and thereby
offers enhanced capability for applications that involve human-computer
interactions. 

Read the entire article at:
http://www.techbriefs.com/content/view/2089/34/
