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Glaucoma is a disease of the eyes that if not dected and treated, could lead to Blindness. Glaucome happens when the eye’s drainage canals become clogged over time.

Bottom Line: Blindness

The front part of the eye is filled with a clear fluid called aqueous humor. This fluid is always being made behind the colored part of the eye (the iris). It leaves the eye through channels in the front of the eye in an area called the anterior chamber angle, or simply the angle.

Anything that slows or blocks the flow of this fluid out of the eye will cause pressure to build up in the eye. This pressure is called Intraocular Pressure (IOP).

There are four types of Glaucoma:

Open-angle (chronic) Glaucoma
Open-angle (chronic) glaucoma is the most common type of glaucoma. The cause is unknown. An increase in eye pressure occurs slowly over time. The pressure pushes on the optic nerve.

Open-angle glaucoma tends to run in families. Your risk is higher if you have a parent or grandparent with open-angle glaucoma. People of African descent are at particularly high risk for this disease.

Angle-closure (acute) Glaucoma
Angle-closure (acute) glaucoma occurs when the exit of the aqueous humor fluid is suddenly blocked. This causes a quick, severe, and painful rise in the pressure in the eye. Angle-closure glaucoma is an emergency. This is very different from open-angle glaucoma, which painlessly and slowly damages vision.

If you have had acute glaucoma in one eye, you are at risk for an attack in the second eye, and your doctor is likely to recommend preventive treatment. Dilating eye drops and certain medications may trigger an acute glaucoma attack.

Congenital Glaucoma
Congenital glaucoma is seen in babies. It often runs in families (is inherited). It is present at birth. It is caused by abnormal eye development.

Secondary Glaucoma
Caused by: Drugs such as Corticosteroids Eye Diseases such as Uveitis Systemic Diseases Trauma.