"Glaucoma results from damage to the optic nerve. Usually the damage is from increased pressure in the eye. The damage to the eye is irreversible and glaucoma can lead to blindness. The most common form, open-angle glaucoma, generally appears in middle age and seems to have a genetic component. In this type of glaucoma, vision loss occurs very gradually. One eye is often worse than the other. Other types of glaucoma are closed-angle glaucoma (a medical emergency) and congenital glaucoma (present at birth). Secondary glaucoma is usually associated with another eye disease or disorder, such as a very mature cataract, uveitis, bleeding, eye tumor, or an eye injury.
Glaucoma Questions and Answers
If you or someone you love has been diagnosed with glaucoma, these questions and answers from the experts at WebMD can give you more information about the disease.
Glaucoma and Your Eyes
WebMD explains types, symptoms, risk factors, diagnosis, and treatment of glaucoma, a progressive vision condition that can lead to permanent blindness.
Occular Hypertension Basics
If monitored, intraocular pressure, or pressure inside the eye, may not lead to glaucoma. Learn more here about the causes, diagnosis, symptoms, and treatment of ocular hypertension.
Glaucoma Surgery: How to Save Your Eyesight
Surgery can be a treatment for glaucoma. How do you know if you’ll need it? What are the types? How will you recover?
Slideshows & Images
Slideshow: A Visual Guide to Glaucoma
Learn how glaucoma can affect your vision, and how your doctor diagnoses and treats it.
Slideshow: What Eye Problems Look Like
What do nearsightedness, farsightedness, or going blind look like? See these views and take an eye test in this slideshow from WebMD's medical editors.
Slideshow: Essential Screening Tests Every Man Needs
Pictures show men the health screenings a doctor may recommend based on age and personal risk factors.