Low vision is a level of vision that is 20/70 or worse and cannot be fully corrected by eye glasses. Low vision usually interferes with daily activities like driving or reading. People with low vision are sometimes unable to recognize images at a distance and near or to differentiate colors of similiar tones. Although low vision frequently occurs to the elderly, it is not a natural part of aging. Low vision is usually caused by eye diseases. When it is caught early on, treatment can be more effective. To treat low vision, people can use optical devices, (like magnifiers, telescopes or closed circuit televisions) as well as nonoptical devices, (like large-print books and audio devices). Additionally, techniques are given to help utilize remaining vision and environmental modifications are applied to maximize remaining vision. your left.