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/

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High-Speed Non-Invasive Eye-Tracking System
From: NASA Tech Briefs Insider - 03/20/2008

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

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

Links:
Ashit Talukder
http://www-hsc.usc.edu/~talukder/