Low vision is a vision impairment, which are not correctable by eyeglasses, contact lenses, surgery or medicine. It interferes with the people's ability to perform every activities. It can result from a variety of diseases, disorders, and injuries that affect the eye. Many people with low vision have age-related macular degeneration, cataract, glaucoma, or diabetic retinopathy. Age-related macular degeneration accounts for almost 45 percent of all cases of low vision.