You see it all the time on these CSI type shows, zoom in on the glasses and enhance it to see the reflection.
It’s real. Sort of. We had this photo taken recently by our friend Luke from Luke Munro Photography, and I noticed a slight reflection on the lens.
You won’t be able to identify them in any way, and this is a 10Mb high resolution shot taken with a Canon EOD 5D Mark II. It’s not going to happen with an iPhone photo or a surveillance camera, but I think it’s pretty cool!