Glaucoma Normal Range Pressure

Eye pressure is measured in millimeters of mercury mm hg.

Glaucoma normal range pressure. Your doctor may call it low tension or normal pressure glaucoma. Normal levels of pressure range from 12 to 22 millimeters of mercury mm hg in your eye so anything above that range signals that not enough fluid is escaping. This measures the level of pressure inside your eye the telltale sign of glaucoma. Normal tension glaucoma ntg also known as low tension or normal pressure glaucoma is a form of glaucoma in which damage occurs to the optic nerve without eye pressure exceeding the normal range.

In normal tension glaucoma your optic nerve becomes damaged even though your eye pressure is within the normal range. In fact many published studies report that they were successful at treating glaucoma when the pressure was reduced below 21 millimeters of mercury the upper limit in persons who don t have glaucoma. Normal intraocular pressure which is measured in millimeters of mercury or mmhg should range between 11 and 21 mmhg if after two consecutive measurements this value is exceeded it is considered that the patient may suffer from high ocular tension. This type of test is usually done in almost every eye doctor visit.

But with normal tension glaucoma the optic nerve becomes damaged even though eye pressure stays within normal levels. You may have a sensitive optic nerve or you may have less blood being supplied to your optic nerve. By definition people with normal tension glaucoma have open normal appearing anterior chamber angles. In general a normal pressure range is between 12 22 mm hg.

According to the glaucoma research foundation the range for normal pressure is 12 22 mm hg. This was true whether the baseline pressure was 22 or 35. Population based studies show that most eye pressures fall within the range of 10 to 21 mm hg. That is why early diagnosis and treatment of glaucoma is the key to preventing vision loss.

No one knows the exact reason for this. This limited blood flow could be caused by atherosclerosis. When the pressure exceeds 22 mm hg that usually indicates an abnormal glaucoma test. People with pressure around 16 mm hg or higher may also be at risk for normal tension glaucoma.

Normal eye pressure ranges from 12 22 mm hg and eye pressure of greater than 22 mm hg is considered higher than normal.