EYE EXAM Lt. Col. John Blackburn examines a Nicaraguan volunteer policeman's eyes March 19 at a makeshift optometry clinic at Collegio San Gregorio. Inside the local school, 836 Nicaraguan patients were given free medical, dental and optometry care during New Horizons-Nicaragua 2007. SHARE: Download: Full Size (0.02 MB) Credit: VIRIN: 824026-Z-PZD88-880.jpg Photo Gallery