Ocular Hypertension

Ocular hypertension is the presence of elevated fluid pressure inside the eye, known as intraocular pressure, usually with no accompanying optic nerve damage or visual field loss; the normal range for most people is between 10 and 21 millimeters of mercury. An estimated 2 to 3 percent of people aged 52 to 89 have ocular hypertension with pressure at or above 25 millimeters of mercury, and 3.5 percent of people 49 and older have pressure at or above 21 millimeters of mercury, and elevated intraocular pressure is an important risk factor for developing glaucoma.