Founded in 1936, the Prevention of Blindness Society of Metropolitan Washington ® (POB), the largest local prevention of blindness agency in the United States, is dedicated to the improvement and preservation of sight by providing services, education, advocacy and innovation. POB screens more than 8,000 children annually for vision loss and strabismus, and 5,000 adults for glaucoma. POB also provides thousands of low-income and homeless persons with eyeglasses. POB sponsors the Aging Eye Network, the Macular Degeneration Network and Stargardt's Network that provide public programs and support groups.