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Glaucoma is a disease that damages the eye’s optic nerve. The optic nerve is connected to the retina and is made up of many nerve fibers.  It is the optic nerve that sends signals from your retina to your brain, where these signals are interpreted as the images you see.  In the healthy eye, a clear fluid called aqueous humor circulates inside the front portion of your eye. If you have glaucoma, the aqueous humor does not flow out of the eye properly. Fluid pressure in the eye builds up and, over time, causes damage to the optic nerve fibers.  Glaucoma can cause blindness if it is left untreated.

There are several types of glaucoma:

         Open-angle glaucoma

         Normal-tension glaucoma

         Closed-angle glaucoma (or Narrow-angle glaucoma or Angle-closure glaucoma)

         Congenital glaucoma

                     Secondary glaucoma

symptoms include:

         Severe eye or brow pain

         Redness of the eye

         Decreased or blurred vision

         Seeing colored rainbows or halos




Risk factors for glaucoma include:


         Family history of glaucoma

         African or Hispanic ancestry

         Farsightedness or nearsightedness

         Elevated eye pressure

         Past eye injury

         Having a thinner central cornea (the clear, front part of the eye covering the pupil and colored           iris)

         Not having eye examinations when they are recommended

         Conditions that affect blood flow, such as migraines, diabetes and low blood pressure