Low vision is a form of vision loss that is described as having reduced visual function, which cannot be fully corrected with medications, glasses, surgery or contact lenses. Various other eye conditions, such as disfigured eyes, may be corrected with artificial irises for cosmetic purposes. Other types of eye issues, such as severe dry eyes, Graft versus Host disease, and irregular eyes, can be remedied with the use of Scleral lenses. Low vision can be managed through the use of visual aids and rehabilitation.

People with low vision experience blurry vision, loss of light sensitivity and contrast, poor light vision, and the loss of vision can make day-to-day activities, such as driving, watching TV, reading and writing, difficult or impossible. Low vision can be caused by: