"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 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?
What is Acute Angle Closure Glaucoma?
Severe eye pain can mean acute angle closure glaucoma. Learn about the causes, symptoms, and treatment for this serious eye condition.
What Is Open-Angle Glaucoma?
Open-angle glaucoma is by far the most common type of glaucoma and a top cause of blindness. Learn if you may be at risk for it, what to look for, and how to get treated.
Which Medicines Treat Glaucoma?
The goal of glaucoma treatment is to keep you from losing any vision. Your doctor will likely prescribe some of these things to help prevent problems with your eyes.
Slideshows & Images
A Visual Guide to Glaucoma
Learn how glaucoma can affect your vision, and how your doctor diagnoses and treats it.
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.
Essential Screening Tests Every Man Needs
Pictures show men the health screenings a doctor may recommend based on age and personal risk factors.