Visage|SDK provides real-time information on gaze direction, eye closure, and 3D and 2D coordinates of the eyes (pupils). Information is delivered through an easy-to-use API. It allows you to easily integrate proven eye and gaze tracking technology into any application. Eye and gaze tracking is fully automatic.
Furthermore, if a simple calibration is performed prior to a tracking session, results are available in form of screen-space gaze point. This is particularly useful for marketing research, user studies and other applications that benefit from knowing where (approximately) on the screen the user is looking.