Lt. Col. Jonathan Ellis (center), Ophthalmology Branch manager of the Aeromedical Consultation Service, Dr. Steven Wright (right), optometrist and Scott Humphrey, cornea imaging technician, demonstrate their Pentacam cornea topography device used in pilot screenings and waiver recommendation cases. The device measures the entire cornea with precision, without contact in only a few seconds. (U.S. Air Force photo/John Harrington)
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