Seeing a change
Master Sgt. Timothy Vanderhoff conducts a near point reading test during his visit to the Optometry Clinic Nov. 19, 2009, Eielson Air Force Base, Alaska. The testing is to determine how well patients read small text. Sergeant Vanderhoff is a crew chief assigned to the 168th Aircraft Maintenance Squadron. (U.S. Air Force photo/Staff Sgt. Christopher Boitz)
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