In the early 1980s, ISCAN pioneered the concept of using the eye point-of-regard as a way of quickly and intuitively interacting with computers, vehicles or other machinery. In many ways, user interface applications are the most difficult. The human oculomotor system is quite precise and people are adapted to using their eyes with great accuracy. A general purpose eye-based user interface must match this resolution and accuracy, and work seamlessly and flawlessly with virtually any human user, for a satisfactory experience. Eye tracking technologies that don’t meet these high standards will be turned off or discarded. While we continue to make progress toward these goals, ISCAN offers both head and remote mounted platforms which can be tailored for use by specific sub-populations (i.e. specific vehicle or machinery operation, people with particular disabilities, etc.) or used to develop eye point-of-regard based software applications and games.