I've wondered about the feasibility of doing something similar with scratch lottery tickets.
The way I envision it working is a customer wearing the magic glasses says they have superstitious beliefs and they need the convenience store clerk to spread the tickets out so that they can 'see the aura' or w.e. of the tickets so they can pick a winning one.
I'm curious if this is even illegal. I assume that somewhere it would be but I bet that in a lot of places it isn't and if you were subtle about it you could get away with it for years.
Of course this all relies on the idea that the sensor is something that fits in glasses, or can be discretely hidden in a broach or something they wear with the video feed displayed on their glasses.