1 Categories of training needed are determined by the job duties.  Employees who work in a shop environment (electrical, carpenter, plumbing shops, etc.) should check with their supervisor to determine additional training requirements.
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).ntraocular 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.
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.