The retina is located in the innermost layer of the eye and senses light. Rod cells in the retina supply vision in low light, while cone cells in the retina supply color and detail to vision. Find more eye anatomy facts on this Chicago eye surgeon infographic.
The Great Migration -- "Lydia Monroe of Ringold, Louisiana, is a student nurse at Provident Hospital in Chicago, Illinois. Her father is a machinist at the Youngstown Sheet and Tube Company."Photo by Jack Delano, March, 1942