ARHeadsetKit
Using $5 Google Cardboard to replicate Hololens
... Go popularized AR, overlaying virtual characters on a map of the world. Beyond that, AR has only played a minor role in the average person’s life, being used for a few occasional tasks such as measuring objects or testing out furniture. By interacting with detailed 3D models of the human body, surgeons can run through the steps of surgery and learn from mistakes in an environment that will not endanger a patient’s life.