Earlier this year Chinese PC maker Lenovo (unveiled) a prototype laptop that could tracker a user's eye movement, enabling them to move (cursors) and open folders just by looking at them.
It was equipped with built-in eye-tracking technology that (used )near infra-red light and image sensors to detect the position of the user's pupils.
It may be a couple of years before similar laptops are on the market, but there are no technical barriers to remote eye-tracking according to the (company) that pioneered the technology and worked with Lenovo on the prototype.
