U.S. Air Force Maj. Arthur Greenwood and Capt. Stuart Winkler, 633rd Surgical Operations Squadron obstetricians, use a 3-D scope and glasses while performing a hysterectomy at Langley Air Force Base, Va., June 14, 2016. The 3-D technology is new in the operating rooms at Langley and gives surgeon a better view of what is happening surgically. (U.S. Air Force photo by Staff Sgt. Ciara Gosier)