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Example REMAINING) Many people have some type of visual problem at some point in their lives. Some can no longer see objects far away. Others have problems reading small print. These types of conditions are often easily treated with eyeglasses or contact lenses. But when one or more parts of the eye or brain that are needed to process images become diseased or damaged, severe or total loss of vision can occur. In these cases, vision can’t be fully restored with medical treatment, surgery, or corrective lenses like glasses or contacts.The American Foundation for the Blind estimates that 10 million people in the United States are visually impaired. Visual impairment is a term experts use to describe any kind of vision loss, whether it’s someone who cannot see at all or someone who has partial vision loss. Some people are completely blind, but many others have what’s called legal blindness and they feel alone. + ++ axon ending + ++ 01 02 03 What is low vision? Basically, “low vision” describes significant visual impairment that can’t be corrected fully with glasses, contact lenses, medication or eye surgery. It includes:Loss of best-corrected visual acuity (BVCA) to worse than 20/70 in the better eye. Significant visual field loss. Tunnel vision (lack of vision in the periphery) and blind spots are examples of visual field loss. More Low Vision Articles Buyer’s guide to low vision magnifiers. potential Legal blindness. In North America this is 20/200 or less central visual acuity in the better eye with best possible correction, or a visual field of 20 degrees or less. Almost total blindness. In 2010 the prevalence of visual disability in the United States was 2.1 percent. This includes both low vision and total blindness. + + + + axon ending + + + + Children as well as adults can be visually impaired, sometimes because of a birth defect or an injury. Children with low vision may have problems in learning concepts, and they need special instruction from their earliest years on. They also need additional help with socialization among other children and adults. But low vision more commonly affects adults and seniors. Their vision loss can be very traumatic, leading to frustration and depression. Losing the ability to drive safely, read quickly, watch television or view a computer screen can cause people with low vision to feel shut off from the world. They may be unable to get around town independently or shop for food and other necessities. 16