Doctors could see what they're dissecting using heads-up displays that overlay CT scans onto the organ in question.

FORBES: Robo-docs

Fateh notes that over the years researchers have documented problems associated with heads-up displays, including those used by military pilots.

FORBES: Could Google Glass Hurt Your Eyes? A Harvard Vision Scientist And Project Glass Advisor Responds

Sina Fateh, an ophthalmologist and entrepreneur who has filed at least thirty patents related to heads-up displays, says there is reason to be concerned.

FORBES: Could Google Glass Hurt Your Eyes? A Harvard Vision Scientist And Project Glass Advisor Responds

RealD's cutting-edge 3D technologies have been used for applications such as piloting the Mars Rover, heads-up displays for military jets and robotic medical procedures.

ENGADGET: PopBox licenses RealD's side by side frame compatible 3D format

Steven Troughton-Smith suggests developers can use it to try out more complicated apps than Google currently allows, including always-on heads-up displays or camera apps.

ENGADGET

Drones could tend to gardens and farms while people control telepresence robots on the other side of the world via heads-up displays like Google Glass.

CNN: Why robots are ready for takeoff