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Normal eye pressure is between 10mmHg and 20mmHg. Eye pressure that’s typically associated with glaucoma is above 21mmHg, but eye damage can develop at a lower or higher pressure for...
An acceptable eye pressure is that which prevents vision loss. This pressure level depends on how severe and how stable the glaucoma damage is, at what pressure level glaucoma damage developed or worsened, and life expectancy. Some doctors set a “target pressure” for each patient.
You may have heard your eye doctor mention measuring your eye pressure, but what does that mean, and what does it have to do with glaucoma? Normal intraocular pressures average from 10-21 mm Hg. The “mm Hg” refers to millimeters of mercury, a scale for recording eye pressure.
If someone has normal-tension or normal-pressure glaucoma, their eye pressure has never been recorded above 21 mmHg, yet they still have optic nerve damage. Does this mean that their eye pressure has never been greater than 21 mmHg?
Eye pressure that’s too high can lead to glaucoma. With early diagnosis and treatment, normal eye pressure can be achieved and maintained, minimizing the effects of glaucoma.
Whether you develop glaucoma depends on the amount of pressure your optic nerve can handle — and this amount is different for each person. For most people, eye pressure above 21 is higher than normal. Getting regular dilated eye exams can help your eye doctor figure out what level of eye pressure is normal for you.
Eye pressure check: Intraocular (eye) pressure greater than 22 mmHg (millimeters of Mercury). Optic nerve imaging: Unusual findings like swelling or buckling of the optic nerve or a bumpy retina. Visual field test: The presence of specific spots where your vision goes blank or gets blurry.