Use Dwell Control on Apple Vision Pro
Dwell Control makes it easier to perform actions by navigating visionOS exclusively with your eyes. Dwell Control lets you interact with controls when you keep your eyes on them for a selected amount of time.
Go to Settings
> Accessibility > Interaction > AssistiveTouch, then turn on Dwell Control.Adjust any of the following:
Target: Change whether Dwell follows the trackpad or system pointer.
Movement Tolerance: Adjust the distance the cursor can move while dwelling on an item.
Time needed to initiate a dwell action: Tap
or .Highlight Control: Turn on to show an outline around the control that will be pressed after the dwell timer elapses.