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Glaucoma FAQs (cont.)

Are There Different Types of Glaucoma?

The two main types of glaucoma are open-angle glaucoma and angle-closure glaucoma. In angle-closure glaucoma, the normal drainage canals within the eye are physically blocked. Angle-closure glaucoma can be acute (sudden in onset) or chronic (lasting a long time), while open-angle glaucoma is usually chronic. In open-angle glaucoma, the drainage system itself is open but microscopic abnormalities within it prevent normal outflow of fluid. Both angle-closure glaucoma and open-angle glaucoma may cause optic nerve damage and vision loss with or without symptoms. Glaucoma is either primary (occurring without an underlying other cause or other eye disease) or secondary (related to other reasons, such as trauma, inflammation or medication). Subtypes of glaucoma include, among others, congenital glaucoma, childhood glaucoma, and normal (or low) tension glaucoma.

Medically Reviewed by a Doctor on 10/19/2012

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Read What Your Physician is Reading on Medscape

Glaucoma, Primary Congenital »

By definition, primary congenital glaucoma is present at birth; however, its manifestations may not be recognized until infancy or early childhood.

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