It is a leading cause of severe visual impairment in adults older than 65. (scicasts.com)
The World Health Organization estimates that there are 285 million people with severe visual impairment around the world, of whom 39 million are completely blind. (goodereader.com)
Maria Lev, who performed the study as a part of her doctoral thesis, said one young subject had experienced significant limitations in school for years and had been unable to obtain a driver's license due to severe visual impairment from foveal crowding. (sciencedaily.com)