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Intraocular pressure (IOP) is the fluid pressure inside the eye. ... [11] The average value of intraocular pressure is 15.5 mmHg with fluctuations of about 2.75 mmHg.
Ocular hypertension is the presence of elevated fluid pressure inside the eye (intraocular pressure), usually with no optic nerve damage or visual field loss. [1] [2]For most individuals, the normal range of intraocular pressure is between 10 mmHg and 21 mmHg. [3]
Most tonometers are calibrated to measure pressure in millimeters of mercury , with the normal eye pressure range between 10 and 21 mmHg (13–28 ... [15] Non-corneal ...
Intra-ocular pressure ISNT: Inferior, Superior, Nasal, Temporal ... Visual acuity with eye chart at Near 15.7 inches (400 mm) and without (sc: Latin sine correctore ...
Ocular hypotony is divided into statistical and clinical types. If intraocular pressure is low (less than 6.5 mm Hg) it is called statistical hypotony, and if the reduced IOP causes a decrease in vision, it is called clinical. [4]
For eye pressures, a value of 28 hPa (21 mmHg) above atmospheric pressure 1,010 hPa (760 mmHg) is often used, with higher pressures leading to a greater risk. [2] [26] However, some may have high eye pressure for years and never develop damage. [2] Conversely, optic nerve damage may occur with normal pressure, known as normal-tension glaucoma. [27]