U.S. Air Force Senior Master Sgt. Monica Alvarado, 633d Medical Group Optometry flight chief, receives a retinal scan during an eye exam at Joint Base Langley-Eustis, Virginia, Sept. 13, 2022. Retinal scans are an important portion of eye exams as they aid doctors in detecting eye conditions such as diabetic retinopathy, glaucoma, age macular degeneration and detached retina. (U.S. Air Force photo by Senior Airman Chloe Shanes)