Earlier quoted context omitted.
Pretty sure that augmented reality glasses, and things in the category of the meta glasses with built-in camera are already banned in most academic test environments, by a blanket policy prohibiting the use of any camera in the room.
Right, they're easy to detect today, that's not going to last long. The whole point is to prevent cheating, well, cheats aren't going to follow the rules. Written tests/in person tests aren't a complete answer to this.
If we get to the point where even that doesn’t work then we’ll be at the point where a camera in the room with an AI analyzing eye movements should be able to detect it. And no matter how advanced they get they’ll still need to radiate heat, so a thermal camera should work. If that fails, industrial CT scanners are getting cheaper and cheaper.
Heck if it gets too bad there’s always mm wave body scanners and a set of cheap glasses kept at school.