Eye Health Information Center

glaucoma

Glaucoma is a condition in which the passages that allow fluid in the eye to drain become clogged or blocked. The amount of fluid in the eye builds up and causes elevated pressure inside the eye. The elevated pressure damages the optic nerve, which connects the eye to the brain. The optic nerve is the main carrier of vision information to the brain. Damage to the optic nerve results in permanent loss of vision.

causes of glaucoma

Glaucoma is one of the leading causes of blindness in the U.S. It is not preventable and the exact cause is unknown. If glaucoma is detected at an early stage and treated promptly, glaucoma can usually be controlled with little or no further vision loss.

who is at risk

It is estimated that over 2 million Americans have glaucoma and this number is expected to rise with the aging of our population. Those at higher risk for developing glaucoma include:

• Individuals over 40 years of age
• African Americans
• Those with a family history of glaucoma
• Pain or redness in the eyes

types of glaucoma

Of the different types of glaucoma, primary open angle glaucoma often develops gradually and painlessly, without warning signs or symptoms. This type of glaucoma is more common among blacks than whites. Another type, acute angle-closure glaucoma, may be accompanied by:

• Blurred vision
• Appearance of halos around lights

detecting glaucoma

Regular eye exams are an important means of detecting glaucoma in its early stages and will include:

• Tonometry - a simple and painless measurement of the pressure in the eye
• Opthalmolscopy - an examination of the back of the eye to observe the health of the optic nerve
• Visual Field Test - a check for the development of abnormal blind spots

Glaucoma can usually be treated effectively by using eye drops or other medicines. In some cases surgery may be necessary. Early detection, prompt treatment and regular examinations can enable you to continue living in much the same way as you have always lived.

To schedule an eye exam or a FREE LASIK consultation, call 1-800-EYECARE (393-2273) for an exam at any of our Crown Vision Center locations.