Ocular hypertension means the pressure in your eye, or your intraocular pressure (IOP), is higher than normal levels. Elevated IOP is also associated with glaucoma, which is a more serious condition that causes vision loss and optic nerve damage. By itself, however, ocular hypertension doesn’t damage your vision or eyes.
Studies suggest that 2% to 3% of the general population may have ocular hypertension.
During routine eye exams, a tonometer is used to measure your IOP. Your eye typically is numbed with eye drops, and a small probe gently rests against your eye’s surface. Other tonometers direct a puff of air onto your eye’s surface to indirectly measure IOP.