Glaucoma is an eye disease that has the potential to damage your optic nerve. The optic nerve supplies visual information to your brain from your eyes.
Glaucoma is usually, but not always, the result of abnormally high pressure inside your eye. Over time, the increased pressure can erode your optic nerve tissue, which may lead to vision loss or even blindness. If it's caught early, you may be able to prevent additional vision loss.
What Causes Glaucoma?The back side of your eye continuously makes a clear fluid known as aqueous humor. As this fluid is made, it fills the front part of your eye. Then, it vacates your eye through channels in your cornea and iris. If these channels are blocked or partially obstructed, the natural pressure in your eye, which is called the intraocular pressure (IOP), may increase. As your IOP increases, your optic nerve may become damaged. As damage to your nerve progresses, you may begin losing sight in your eye.
What causes the pressure in your eye to increase isn't always known. However, doctors believe one or more of these factors may play a role:
dilating eye dropsblocked or restricted drainage in your eyemedications, such as corticosteroidspoor or reduced blood flow to your optic nervehigh or elevated blood pressureThe stages of glaucoma, types of glaucoma, glaucoma in children and the effective means of preventing and treating glaucoma.