130725-Z-HC784-027 – Senior Airman Aalona Chandler, a member of the 127th Medical Group, records the results of an Airman’s vision test at Selfridge Air National Guard Base, July 25, 2013. The 127th Medical Group is charged with maintaining the medical readiness of nearly 1,700 Citizen-Airmen in the Michigan Air National Guard. (U.S. Air National Guard photo by John S. Swanson/Released)