A tech-savvy hospital in Boston developed a custom information-retrieval system for Google Glass, which lets ER doctors scan a QR code on the wall of each room to call up information about patients. Dr. John Halamka, CIO of Beth Israel Deaconess Medical Center, described the system today in his blog (a cached version is here as the original link seems to be having problems): “In the Emergency Department, we’ve developed a prototype of a new information system using Google Glass, a high tech pair of glasses that includes a video camera, video screen, speaker, microphone, touch pad, and motion sensor. Here’s how it works. When a clinician walks into an emergency department room, he or she looks at [a] bar code (a QR or Quick Response code) placed on the wall. Google Glass immediately recognizes the room and then the ED Dashboard sends information about the patient in that room to the glasses, appearing in the clinician’s field of vision.”