Weather watches and warnings are issued when potentially hazardous weather is occurring or is forecast for the short term period. Some of those bulletins have been changed on April 8, 2014 and below is a list and definitions of the up-to-date watch and warning.
Measuring Eye Pressure. Eye pressure is measured in millimeters of mercury (mm Hg). Normal eye pressure ranges from 12-22 mm Hg, and eye pressure of greater than 22 mm Hg is considered higher than normal.When the IOP is higher than normal but the person does not show signs of glaucoma, this is referred to as ocular hypertension.High eye pressure alone does not cause glaucoma. However, it is a significant risk factor.hen the IOP is higher than normal but the person does not show signs of glaucoma, this is referred to as ocular hypertension. High eye pressure alone does not cause glaucoma. However, it is a significant risk factor.
Intraocular pressure (IOP) is the fluid pressure inside the eye. Tonometry is the method eye care professionals use to determine this. IOP is an important aspect in the evaluation of patients at risk from glaucoma.Most tonometers are calibrated to measure pressure in millimeters of mercury (mmHg).urrent consensus among ophthalmologists and optometrists define normal intraocular pressure as that between 10 mmHg and 20 mmHg. The average value of intraocular pressure is 15.5 mmHg with fluctuations of about 2.75 mmHg.