Spc. William E. McMullan, 24th Medical Detachment, Fort Bragg, , calibrates a lensometer in the Ka'u optometry section before first patients arrive for Tropic Care 2016, 31 May 2016, Ka'u, Hawaii. The lensometer is used to verify prescriptions existing glasses prescriptions, and mark the optimal area of a new lens for cutting. ( Army photo by Sgt. Rachel S. Grothe.)

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Size: 4288px × 2848px
Photo credit: © AB Forces News Collection / Alamy / Afripics
License: Licensed
Model Released: No

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