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An optometry technician from the U.S. Air Force points to an E Chart to properly measure a Vietnamese child's visual acuity during Operation Pacific Angel 2013 in Dong Hoi, Quang Binh Province, Vietnam, June 10, 2013. Thousands of people have benefited from assistance given through PACANGEL operations that have taken place in the Asia-Pacific region over the course of six years. Operation PACANGEL is a joint and combined humanitarian assistance exercise held in various countries several times a year and includes medical, dental, optometry, engineering programs and a variety of subject-matter expert exchanges. (U.S. Air Force photo by Staff Sgt. Sara Csurilla)
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