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 ).
Increased intraocular pres-sure occurs when there is a defective drainage of aqueous humour from the eye. Decreased intraocular pressure is the result of either reduced production, or in case of injury, leakage through a defect in the globe wall.Tonometry Tonometry is the measurement of IOP. Tonometry is essential in the work-up of animals with ocular conditions.