U.S. Army Master Sgt. Michael Stewart, optometry technician,

U.S. Army Master Sgt. Michael Stewart, optometry technician, tests a man's vision April 7, 2014, at the Chunox Roman Catholic Pre-School in Chunox, Belize. The care was provided as part of a medical training exercise, or MEDRETE, that offers U.S. and Canadian military doctors and nurses the opportunity to train and interact with their Belizean counterparts. Free care will also be available 9 a.m. to 4 p.m. April 14-17 at the Libertad Methodist School. (U.S. Air Force photo by Tech. Sgt. Kali L. Gradishar/Released)