Glaucoma is a condition that causes damage to your eye’s optic nerve and gets worse over time. It’s often linked to a buildup of pressure inside your eye. Glaucoma tends to be inherited and may not show up until later in life.
The increased pressure, called intraocular pressure, can damage the optic nerve, which transmits images to your brain. If the damage continues, glaucoma can lead to permanent vision loss. Without treatment, glaucoma can cause total permanent blindness within a few years.
Most people with glaucoma have no early symptoms or pain. You need to see your eye doctor regularly so he can diagnose and treat glaucoma before long-term visual loss happens.
If you’re over age 40 and have a family history of the disease, you should get a complete eye exam from an eye doctor every 1 to 2 years. If you have health problems like diabetes or a family history of glaucoma or are at risk for other eye diseases, you may need to go more often.
What Are the Types of Glaucoma?
There are two main kinds:
Open-angle glaucoma. It’s the most common type. Your doctor may also call it wide-angle glaucoma. The drain structure in your eye — it’s called the trabecular meshwork — looks normal, but fluid doesn’t flow out like it should.
Angle-closure glaucoma. It’s less common in the West than in Asia. You may also hear it called acute or chronic angle-closure or narrow-angle glaucoma. Your eye doesn’t drain right because the angle between your iris and cornea is too narrow. Your iris is in the way. This can cause a sudden buildup of pressure in your eye. It’s also linked to farsightedness and cataracts, a clouding of the lens inside your eye.
How Is Glaucoma Treated?
Your doctor may use prescription eye drops, laser surgery, or microsurgery.
Eye drops. These either reduce the formation of fluid in the eye or increase its outflow. Side effects may include allergies, redness, stinging, blurred vision, and irritated eyes. Some glaucoma drugs may affect your heart and lungs. Be sure to tell your doctor about any other medications you’re taking or are allergic to.
