Watching television does not cause any damage to your eyes, but it does strain your eyes. It may also cause headaches if someone watches television too much.
Myths say that sitting too close to a television or watching too much television can hurt your eyes. These are used as ways to detract people from excessively watching their favorite shows. When children sit too close to a television to watch it, it may indicate that they have predisposed vision problems and are unable to see clearly. If this happens frequently, the child should be taken to see an optometrist for an eye exam.