This video looks at the causes of glaucoma, a group of diseases that damage the eye's optic nerve.
This disorder, also called "narrow angle" or "closed angle" glaucoma, is a buildup of pressure in your eye. It usually happens very quickly. It can damage your optic nerve. It can cause blindness.
This condition results from a buildup of pressure inside your eye. It develops slowly. Most people don't realize they have a problem until their vision is harmed.