Glaucoma Treatment

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Glaucoma is an eye disease that slowly and painlessly steals away your sight. Glaucoma is called the silent thief of sight because it has no symptoms. But it is the second leading cause of blindness in the United States, and half of the people who have glaucoma don’t know that they have the disease.

What Is Glaucoma?

Glaucoma refers to a group of diseases that cause irreversible optic nerve damage. There are many different types of glaucoma, but most types occur when fluid builds up inside of the eye, effectively raising the pressure inside of the eye to dangerous levels.
Glaucoma Diagram

Glaucoma Diagram

Glaucoma damages vision by destroying the optic nerve, which connects your eye to your brain, and carries visual information to your brain for processing. When the optic nerve is damaged by glaucoma, you lose your vision. Your peripheral vision (or side) vision is lost first. If glaucoma remains untreated, the vision loss creeps in toward the center, first causing tunnel vision, and eventually, blindness.

Glaucoma Risk Factors

The cause of glaucoma is unknown, but there are several risk factors that increase your risk of developing glaucoma. These include high eye pressure (called intraocular pressure, or IOP), older age, being African- American or Hispanic, and having a family history of glaucoma. Anyone with any of these risk factors should get regular eye examinations to look for glaucoma.

What Causes Glaucoma?

Happy Older CoupleThe cause of optic nerve damage in glaucoma is not known, but since most eyes with glaucoma have high IOP, it is likely that high IOP plays a role in damaging the nerve. IOP is a measure of the fluid pressure inside the eye. The eye is filled with clear fluid that flows in through a spigot and flows out through a drainage canal.

In patients with glaucoma, the drain of the eye gets plugged, and fluid coming into the eye cannot get out, raising the IOP. A thorough examination for glaucoma should include the measurement of IOP. But since some eyes can have glaucoma without high IOP, a careful examination of the optic nerve looking for glaucoma damage is also very important. If the IOP is high or the optic nerve looks damaged (or both), a special test called a visual field test should be performed. The visual field test shows whether or not you’ve lost any side vision to glaucoma.

Glaucoma Treatments

SLTIf you are diagnosed with glaucoma, treatment is available to save your remaining vision. The goal of glaucoma treatment is to lower IOP and stop the optic nerve damage. Glaucoma treatments, unfortunately, cannot restore any vision already lost as a result of glaucoma.

Several kinds of treatment are available to lower IOP. These include eye drops, laser therapy, and surgery. Eye drop medications lower IOP by either reducing the amount of fluid entering the eye or increasing the amount of fluid exiting the eye. There are several different kinds of glaucoma medications, and each differs in terms of both its ability to lower IOP and its potential side effects.

Laser therapy is often used when medications fail to successfully lower IOP and is also used for patients who cannot tolerate medications due to side effects. Recent advances in laser therapy have produced lasers so safe and effective that for some patients, laser therapy is used instead of medications. If medications and/or laser therapy fail to bring the IOP down to a safe range, surgery is available to lower IOP.

Sometimes, it takes some trial and error to find the treatment that works for you. Your doctor will work with you to develop a treatment plan that will safely lower your IOP.

Glaucoma Example

Example of Vision Loss from Glaucoma

If you have been diagnosed with glaucoma or you suspect you may have it, contact Family eye Physicians in Chicago to schedule your glaucoma screening. Remember to attend routine eye examinations so that you can be tested for glaucoma. Early diagnosis is key to saving your vision!

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