The normal range for intraocular pressure is 10 to 20 millimeters of mercury (mm Hg). Ocular hypertension is considered to be higher than 21 mm Hg. Eye pressure below 10 mm Hg, is considered hypotony.

even when IOP remained normal. Overall, the two pressures must be kept at normal levels for axonal transport through the optic nerve to flow freely. When these pressure levels are differentiated ...

Purpose: The goal of this study was to identify the early postoperative intraocular pressure (IOP) that predicts low pressure control after a trabeculectomy with mitomycin C. Materials and Methods ...

Increased intraocular pressure (lOP ... will have progressive cupping even though the lOPs remain within the normal range, suggesting that mechanical compression is unlikely to be the sole ...