Method and system for facilitating surgery using an augmented reality system

A method for facilitating surgery using a display device worn on the head of a first user, comprising:

• the display device receiving patient data relating to a surgical procedure on a patient;
• the display device tracking a head pose of a first user relative to a physical location;
• the display device rendering virtual content comprising a virtual three-dimensional (3D) anatomical model based on the received patient data and the tracked head pose of the first user;
• and
• the display device displaying the virtual content while worn on the head of the first user such that the virtual 3D anatomical model, when viewed by the first user, appears to be fixed at the physical location, whereby the virtual 3D anatomical model may be viewed by the first user from any angle or orientation merely by walking around the physical location.