Staff Sgt. Jonghwan Kim and Tech. Sgt. Cristian Martinez, 374th Aerospace Medicine Squadron, display the capabilities of the ATLAS topographer at Yokota Air Base, Japan, Dec. 11, 2013. Corneal topography is a non-invasive medical imaging technique for mapping the surface curvature of the cornea, the outer structure of the eye, which determines vision quality. (U.S. Air Force photo by Airman 1st Class David Danford/Released)
Airman 1st Class David Danford
Taken on 11 December 2013
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