The ViewPoint EyeTracker provides a complete eye movement evaluation environment including integrated stimulus presentation, eye movement monitoring, pupil diameter monitoring, and a Software Developer's Kit (SDK) for communicating with other applications. ViewPoint EyeTracker TM incorporates several methods that a user can select from to optimize the system for a particular application. It provides three methods of mapping position signals extracted from the segmented video image in EyeSpace TM coordinates to the participant's point of regard in GazeSpace TM coordinates.