Smoking among intense users of hand held electronic devices increases the risk of blindness by two-threefold
According to a professor Wu Chia-cheng of the Department of Chemistry at the Taiwan Normal University, intense long-term staring at the screens of hand held electronic devices increases the risk of blindness by two-threefold as a result of drusen, dry macular degeneration, wet macular degeneration. Drusen are yellow deposits under the retina. They increase the risk of age related macular degeneration. Optic disc drusen occur in children and will cause a loss of peripheral vision.