Do you see what I see? - A man with a pair of glasses on his head

Fireman Ethan Rooney undergoes a routine eye exam from Certified Ophthalmic Technician Johnny Knight Sr. Jan. 17 at Naval Health Clinic Charleston. The device being used is a Phoropter, which measures the refractive error to determine an individual's spectacle lens prescription. Rooney is a student at the Naval Nuclear Power Training Command at Joint Base Charleston-Weapons Station.