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.
Normal intraocular pressures average between 12-22 mm Hg. The âmm Hgâ refers to millimeters of mercury, which is a scale for recording the eye pressure.Eye pressure can vary hourly, daily and weekly. Many factors can affect the up and down changes in a person's intraocular pressure.ome optic nerves develop glaucoma even at low pressures (this is called normal-tension glaucoma) so it is important to have the optic nerve examined no matter what the pressure may be.