NASA Spinoff: Seeing Is Communicating Eye-tracking technology makes 'talking' possible for people who can’t

Eyegaze Edge measures several eye features, making it possible for the tracker to work even when less of the pupil is visible. The company employs clinical specialists who can troubleshoot issues that could prevent customers from using the system — eye conditions like cataracts, dry eyes, and eyelids that droop, partly covering the pupil.