Eye control
Point with your eyes. Look, Hand control's third mode, moves the pointer to where you look through your webcam; a small head turn places it and a held blink clicks.
Look
Look is Hand control's third mode, beside Air and Desk: your webcam watches your eyes and the pointer goes where you look, anywhere on your screen.
- Move: look where you want the pointer. It jumps there and holds still while your eyes rest.
- Fine-tune: keep looking and turn your head a little. A webcam reads where you look to within a couple of centimetres on the screen, so the last stretch is your head's.
- Click: close your eyes for about half a second, then open them. A normal blink never clicks or moves the pointer.
Turn it on
Choose Look in the Hand control preview, or search Look to point in ⌘K ("eye", "gaze" or "eye tracking" find it too).
The first time, dots appear across your screen. Look at each one until its ring closes; it takes about 20 seconds. Aden then tells you how accurate it came out, with Redo and Done.
Calibrate again
If the pointer lands off, press the target button in the preview: five dots correct it in a few seconds. Calibrate eyes in ⌘K runs the full set again. Calibrate again after you move your laptop or the light changes a lot.
Esc cancels a calibration. The picture never leaves your computer.