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Diseases of the eye in which the optic nerve is damaged, usually slowly but progressively, by a level of pressure in the eye which interferes with the normal blood flow to the nerve. Most cases are called chronic simple glaucoma.

This glaucoma is usually painless, and the vision loss is very subtly progressive so that a person with it is unaware of any problem without an eye exam.

The vision loss is permanent so it is vital that eye exams be regular in adults. Eye exams by an ophthalmologist for glaucoma include pressure measurement, evaluation of the optic nerve, and peripheral visual field checkup. Treatment is usually quite successful with drops, laser or surgery.

Glaucoma and Pain - A type of glaucoma called narrow angle glaucoma can cause intense pain with a sudden pressure rise. Such pain is uncomfortable but may be a helpful warning that a serious condition exists. This "attack" can usually be broken and then be treated with a laser for long term protection.

Other sites for information on glaucoma:
WEbMD Health
The Glaucoma Research Foundation
The Glaucoma Foundation

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