For most people, Google Glass still seems like little more than a gimmick. But in health care, doctors are already finding uses for the technology that could one day save your life. Five years down the line, don't be surprised if surgeons are wearing Google Glass in the operating room. In fact, some surgeons--in San Francisco, naturally--are early adopters of the technology already. At Rock Health's recent Health Innovation Summit, Dr. Pierre Theodore, a cardiothoracic surgeon at UCSF Medical Center, described his experience wearing Google Glass while performing surgery, using the glasses to compare the patient's CAT scan images with what he was seeing in front of him.