[gwurldz]

This seems like it would fit

https://thinksmartbox.com/products/eye-gaze/

I once interviewed at this company. Unfortunately didn't get the job but very impressed nonetheless.

[ankaAr]

I work for them.., they have their ins and outs. The stack is very impressive but there is a loooot to improve yet

[Verath]

I was part of developing the Lumin-i variant of this (working for Smart Eye)! Working with the Smartbox team was a pleasure :).

The solution actually works pretty well, especially when calibrated to a single individual.