Basically. There's a rangefinder in the frame, whatever you point your head at shifts the lens focus for your prescription, which means it can handle bi/tri/in

Basically. There's a rangefinder in the frame, whatever you point your head at shifts the lens focus for your prescription, which means it can handle bi/tri/infinite-focal with no problem. A more 'real' example would probably use eye tracking, but the demo is much more about the lens adjustment than auto-tracking (seems tacked on to make it more interesting / a more complete demo).