Adult Glaucoma Suspect (cont.)
U Fusun Cardakli, MD
Richard W Allinson, MD
Francisco Talavera, PharmD, PhD
Robert H Graham, MD
IN THIS ARTICLE
Adult Glaucoma Suspect Causes
The mechanisms that cause glaucoma are not fully understood. In most cases, a painless elevation of IOP occurs, which can lead to progressive vision loss and optic nerve damage.
High pressure inside the eye is caused by an imbalance in the production and drainage of fluid in the eye (called aqueous humor). The channels (called trabecular meshwork) that normally drain the fluid from inside the eye do not function properly. More fluid is continually being produced but cannot be drained because of the improperly functioning drainage channels. This results in an increased amount of fluid inside the eye, thus raising the pressure.
Another way to think of high pressure inside the eye is to imagine a water balloon. The more water that is put into the balloon, the higher the pressure inside the balloon. The same situation exists with too much fluid inside the eye—the more fluid, the higher the pressure. Also, just like a water balloon can burst if too much water is put into it, the optic nerve in the eye can be damaged by too high of a pressure. See Media files 1-2.
Certain risk factors are associated with the development of glaucomatous damage. The greater the number and the degree of risk factors, the greater the risk of developing glaucoma over time.
The following historical and demographic factors have shown a high association for the disease:
In addition to elevated IOP, the following eye conditions have been implicated as risk factors for developing glaucoma:
The following medical conditions have been associated as risk factors for developing glaucoma:
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Glaucoma is becoming an increasingly important cause of blindness as the world's population ages.
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