A root canal is the space within the root of a tooth. A root canal is a treatment used to repair and save a tooth that is badly decayed or becomes infected. Many of the viruses, bacteria, parasites, and fungi that can invade the human body are also capable of attacking the surface or interior of the eye. So root canal is possible to cause eye infection. When eye infection occurs, you'd better pay attention to your personal hygiene. Because eye infection are most commonly due to bacteria and virtues enter eyes. While hands and face are the best place for germs to live. When you get eye infection, pay attention to it, or other eye problems may occur.