Capt. Lauren Pfendler, 2nd Aerospace Medical Squadron optometrist, analyzes a patient's retina on Barksdale Air Force Base, La., March 26, 2014. During an eye exam, the optometrist will take a photo of a patient's eye and look at the image to see if there are any vision or life threatening diseases. (U.S. Air Force photo/Senior Airman Benjamin Gonsier)
Airman 1st Class Phillip Scott, 20th Bomb Squadron aviation resource manager, looks at himself in a mirror while trying on a glasses frame on Barksdale Air Force Base, La., March 26, 2014. The Optometry Clinic offers a wide variety of frames for service members. (U.S. Air Force photo/Senior Airman Benjamin Gonsier)
Michael Hoskins, 2nd Aerospace Medicine Squadron paraoptometric technician, positions a patient's eye for a glaucoma test on Barksdale Air Force Base, La., March 26, 2014. To test for glaucoma, optometry technicians use a tonometer, which shoots a puff of air into the patient's eyes. The air is used to measure a patient's eye pressure. Glaucoma is the leading cause of blindness in America, which is why it is essential to catch it early. (U.S. Air Force photo/Senior Airman Benjamin Gonsier)
Michael Hoskins, 2nd Aerospace Medicine Squadron paraoptometric technician, performs an auto-refraction test on Airman 1st Class Jessica Bicy, 2nd Comptroller Squadron financial services technician, on Barksdale Air Force Base, La., March 26, 2014. The machine is used to obtain a baseline prescription for patients. (U.S. Air Force photo/Senior Airman Benjamin Gonsier)
Airman 1st Class Jessica Bicy, 2nd Comptroller Squadron financial services technician, looks through a phoropter during an eye exam on Barksdale Air Force Base, La., March 26, 2014. The phoropter contains different lenses for each eye, which helps the optometrist find the correct prescription for the patient. (U.S. Air Force photo/Senior Airman Benjamin Gonsier)
Capt. Lauren Pfendler, 2nd Aerospace Medical Squadron optometrist, looks at Airman 1st Class Jessica Bicy, 2nd Comptroller Squadron financial services technician, eye with a slit lens on Barksdale Air Force Base, La., March 26, 2014. The slit lens is used to get a close look at the eye. A standard eye exam will consist of a visual acuity check used to determine a change in vision and other procedures to ensure the patient's eyes are healthy and free of disease. (U.S. Air Force photo/Senior Airman Benjamin Gonsier)