Optometry
MINOT AIR FORCE BASE, N.D. -- Capt. Caitlyn Woods, 5th Medical Operations Squadron chief of optometry services, uses a phoropter on Staff Sgt. Catherine Martin, 5th Medical Group alternate personnel reliability program monitor, to check her vision and determine the correct prescription for her glasses March 11. Regular eye exams can detect the beginning stages of degenerative eye disease and can restore or prolong vision for some incurable cases. (U.S. Air Force photo by Staff Sgt. Keith Ballard)