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Glaucoma

If the drainage angle is blocked, excess fluid cannot flow out of the eye — causing the fluid pressure to increase.

If the drainage angle is blocked, excess fluid cannot flow out of the eye — causing the fluid pressure to increase.

Glaucoma and Diabetic Retinopathy are two of the leading causes of blindness as we age. Both conditions can be treated and controlled through preventive measures.

What is glaucoma?
Glaucoma is a disease of the optic nerve — the part of the eye that carries the images we see to the brain. The optic nerve is made up of many nerve fibers, like an electric cable containing numerous wires. When damage to the optic nerve fibers occurs, blind spots develop. These blind spots usually go undetected until the optic nerve is significantly damaged. If the entire nerve is destroyed, blindness results.

What causes glaucoma?
Clear liquid called aqueous humor circulates inside the front portion of the eye. To maintain a healthy level of pressure within the eye, a small amount of this fluid is produced constantly while an equal amount flows out of the eye through a microscopic drainage system. (This liquid is not part of the tears on the out surface of the eye.)

Because the eye is a closed structure, if the drainage area for aqueous humor — called the drainage angle — is blocked, the excess fluid cannot flow out of the eye. Fluid pressure within the eye increases, pushing against the optic nerve and causing damage.

Who is at risk for glaucoma?
Early detection and treatment by your ophthalmologist are the keys to preventing optic nerve damage and blindness from glaucoma. Glaucoma is a leading cause of blindness in the United States, especially for older people. But loss of sight from glaucoma can often be prevented with early treatment.

The most important risk factors include:

Taking your medications and having regular eye exams are the most important things you can do. Also, please bear in mind the following: