Jerald A Bell, MD
Richard W Allinson, MD
Francisco Talavera, PharmD, PhD
Robert H Graham, MD
Ocular Hypertension Overview
The term ocular hypertension usually refers to any situation in which the pressure inside the eye, called intraocular pressure, is higher than normal. Eye pressure is measured in millimeters of mercury (mm Hg). Normal eye pressure ranges from 10-21 mm Hg. Ocular hypertension is an eye pressure of greater than 21 mm Hg.
Although its definition has evolved through the years, ocular hypertension is commonly defined as a condition with the following criteria:
As mentioned above, increased intraocular pressure can result from other eye conditions. However, within this article, ocular hypertension primarily refers to increased intraocular pressure but without any optic nerve damage or vision loss. Glaucoma occurs when increased intraocular pressure, optic nerve damage, and vision loss are present.
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