Eye gaze is a way of controlling a computer in which a camera tracks a person's eyes and where they look controls the curser. People are able to click by either blinking or looking at the same area for a certain amout of time.
I designed and printed super simple hooks which attach an eye gaze device to a microsoft surface pro. Before these hooks, Occupational Therapists needed to find a different, haphazard way of attaching these two devices, such as tape. Here is the onshape file.