Also called low-tension or normal-pressure glaucoma, in normal-tension glaucoma the optic nerve is damaged even though the pressure in the eye is not very high. Doctors do not know why some peoples optic nerves are damaged even though they have almost normal pressure levels.
Does eye pressure always mean glaucoma?
If you know a bit about glaucoma, you know that the number one risk factor is elevated eye pressure. But elevated eye pressure does not necessarily mean you have glaucoma.
Can you have normal eye pressure and still have glaucoma?
But with normal-tension glaucoma, the optic nerve becomes damaged even though eye pressure stays within normal levels. Your doctor may call it low-tension or normal-pressure glaucoma.
Can you have glaucoma if your eye pressure is low?
While elevated IOP normally characterizes glaucoma, low-pressure glaucoma patients have an IOP consistently below 22 mm Hg and will show glaucomatous optic disk or visual field changes. When treating any glaucoma, Quinn advocates aggressive therapy to preserve optic nerve function.
Is normal pressure glaucoma rare?
In fact, the features of normal-tension glaucoma are similar to primary open-angle glaucoma (POAG), the most common form of glaucoma. In the United States, roughly half of all glaucoma patients have normal-tension glaucoma, with eye pressures below 22, according to the Baltimore Eye Study.
What is a good eye pressure for someone with 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 general, a normal pressure range is between 12-22 mm Hg.