While not technically VR, Augmented Reality (AR) equipment lets you see the real world, but through it, you’ll see extra virtual things being included into your view. This enhances your viewing experience of the real world instead of taking you out of it altogether. While it’s unlike holograms in the truest sense of the word, it allows the wearer of these glasses to see holograms being overlayed on real life.
Microsoft’s HoloLens is one such thing. While most of us may not see it in use much, NASA has partnered with Microsoft to have it used by astronauts as a Sidekick, up at the International Space Station. The goal of Sidekick is to provide station crews with assistance when and where they need it, reducing training requirements and increase the efficiency at which astronauts can work in space.
Another example of AR glasses is the seemingly failed Google Glass. The idea was pretty much the same; that you can have a number of virtual functions added to your field of view, letting you access menus on your phone and such. The idea didn’t take off at the scale Google wanted, which is probably why they are going for enterprise level applications with the Google Glass 2, perhaps hoping for HoloLens levels of usefulness.