Eye Exam Dr. Courtney Humphrey, an optometrist with the 633rd Aerospace Medicine Squadron, holds a lens used to look into a patient’s eye at Joint Base Langley-Eustis, Va., Jan. 27, 2020. SHARE: Download: Full Size (1.06 MB) Credit: Air Force Airman 1st Class Sarah Dowe VIRIN: 200124-F-PE983-1010C.JPG Photo Gallery