Viral meningitis is common and contagious, but it is rarely serious or fatal and does not require antibiotics. The more serious meningococcal bacteria are the leading cause of meningitis in adolescents ages 11 to17, and while theyâre rare, they can be fatal.
Test Overview. A tonometry test measures the pressure inside your eye, which is called intraocular pressure (IOP). This test is used to check for glaucoma, an eye disease that can cause blindness by damaging the nerve in the back of the eye (optic nerve ).
Represents the minimal pressure in the left ventricle which can maintain its ejection phase. See also blood pressure. pressure gauge. a device attached to the outlet of gas tanks to measure internal pressure which indicates the quantity of gas remaining. pressure gradient. the rate of increase (or decrease) in the magnitude of the pressure being measured. intracranial pressure (ICP). see intracranial pressure. intraocular pressure (IOP). the pressure exerted against the outer coats by the contents of the eyeball.