The applications of eye-tracking devices are endless ... thus avoiding the need to be tethered to the computer under control . The horizontal position of the mouse pointer is controlled via ...
It is also currently planned to have both eye and face tracking, which is not only good for controlling the UI, but helps the likes of the PS VR2 run dynamic foveated rendering.
However, if Asus' headset also comes with face and eye-tracking hardware, like the Meta Quest Pro, we could see more of a premium gaming VR headset on our hands. While there's no word on a release ...