Augmented reality is a little different than virtual reality in that it superimposes images over reality rather than only generating images that track your head movement within a digital world. Its like looking through glasses that gives the impression that something is there, that is really only on the lens.
Some VR can do 'pass- through' which uses a camera to show images in real time but so far don't add anything to those images. Microsoft's new HoloLens looks to be pushing us even further into the future. Imagine drawing lessons in real time with a digital instructor that you can just trace over. Or seeing arrows pointing the way to your destination or by our guides that only you can see - or .. Or.. The possibilities are verging on magic.