U.S. Air Force Capt. Christy Barton performs a cataract test on a Ghanaian woman in Tamale, Ghana, during Exercise Med Flag 2006, Sept. 12, 2006. Med Flag is a medical-training exercise in which medical personnel from U.S. Air Forces in Europe are treating residents and training local health care workers. U.S. Air Force Capt. Christy Barton performs a cataract test on a Ghanaian woman in Tamale, Ghana, during Exercise Med Flag 2006, Sept. 12, 2006. Med Flag is a medical-training exercise in which medical personnel from U.S. Air Forces in Europe are treating residents and training local health care workers. SHARE: Download: Full Size (0.76 MB) Tags: Photo Essays Credit: VIRIN: 203723-P-AMG83-815.jpg Photo Gallery