The medical and surgical applications for VR and AR continue to expand. Telementoring, battlefield remote surgery, and medical education have been well described. Significant technical limitations still exist, such as the limited field-of-view with Microsoft’s Hololens (see a surgeon’s first hand perspective here). There will be many compelling advantages of this technology in the operating room, for example, see-through surgical navigation using reconstructed CT scans. In the not too distant future I will be able to see my patient’s oxygen saturation, blood pressure, and a myriad of other physiological parameters graphically displayed as a HUD while I am performing a difficult intubation, or emergently placing a central venous catheter.