Warfighter Eye Center
A Zeiss Humphrey topographer takes a topographic map of a patient’s cornea, at Joint Base Andrews, Md. This imaging is used for mapping the surface curvature of the cornea.(U.S. Air Force photo by Staff Sgt. Perry Aston)

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Photo by: Staff Sgt. Perry Aston |  VIRIN: 130225-F-MG591-004.JPG