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Eye pressure is just one risk factor for developing glaucoma, but it’s possibly the most important risk factor, and the main one that can be modified.

A healthy eye must have some pressure within it. Without any pressure, it would collapse like a balloon with a puncture. The eye has a pump that produces a very small amount of fluid, which circulates from behind your iris to the drainage channels in front of it. The volume of fluid that can drain out of the eye determines the resulting eye pressure. Many studies have shown that as eye pressure rises, your risk of glaucoma is much greater. And many clinical studies have shown that reducing the eye pressure is very effective in controlling glaucoma damage.

However, the eye pressure level is not essential to a diagnosis of glaucoma. What eye pressure doesn’t tell you is whether the glaucoma damage to your optic nerve is stable or progressive. That can only be determined by assessing the optic nerve head or testing the visual field.

Click here to read a full article from February 2008 Eyelights:
Your Eye Examination Part 1: Your Eye Pressure

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