Types of Glaucoma.

Open Angle Glaucoma

Ninety percent of glaucoma cases are open angle glaucoma. It is also known as primary open angle glaucoma or chronic glaucoma. This occurs due to the blockage of the trabecular meshwork. In this type of glaucoma, the fluid build up occurs slowly. As a result, it takes considerable time for the sufferer to recognize the symptoms of the disease.

Closed angle glaucoma

Also known as angle closure glaucoma or acute glaucoma, it occurs in nearly 9 percent of glaucoma patients. This occurs when the drainage of the aqueous humor is blocked by the narrowing of the opening between the cornea and iris. The type of glaucoma develops rapidly.

Secondary glaucoma

This form of glaucoma occurs because of eye injury, advanced stage of cataract, inflammation or eye tumor or diabetes.

Normal tension glaucoma

In this form of glaucoma, the optic nerve is damaged even when the intraocular pressure remains in the normal range.

Congenital glaucoma

This occurs due to incorrect development of the drainage systems of the eye in the prenatal period.