This is presentation I wrote last year for Sensory Software. I posted the video element of it previously but this is the full presentation. There are a couple of technical wobbles but bear with it. It's about 20 minutes long so is primarily intended for anyone considering eyegaze and it includes information regarding the implementation of the system with the stages of development involved. I appreciate that the Windows control section of the video is, on the face of it, rather tedious but try to remember EVERYTHING is done using eye control and nothing else.