Open-Angle Glaucoma: How It Works, Explained Simply

Video Transcript

Open-angle glaucoma is the most common form of glaucoma. In this type, the drainage angle where the iris meets the cornea stays open and looks normal. The problem is deeper in. The spongy drainage tissue slowly becomes less efficient, a little like a drain that is gradually clogging. Fluid keeps being made, but leaves too slowly, so pressure inside the eye can creep upward over years. That steady pressure gradually damages nerve fibers where the optic nerve leaves the eye. Because it happens so slowly and painlessly, many people have no idea anything is wrong until a good deal of side vision is already gone. An eye exam can find it early, by measuring the pressure, examining the optic nerve, and testing the field of vision. Treatment usually starts with daily eye drops that lower pressure. Laser and surgery are other options your doctor may discuss. This video is for general education only. It is not medical advice. Ask your eye doctor what's right for you.