ASL has been a pioneer in the examination of human eye movement and pupil dynamics for over 30 years. Founded by M.I.T. scientists in 1962, ASL developed the first video based eye tracker in 1974. ASL is the first company to develop head mounted optics, eye/head integration, parallax free optics, magnetic head tracking, assisted remote optics and many features that are now industry standard. Our innovative spirit continues to flourish. ASL offers the broadest and most comprehensive line of video based