WHY MEASURE IOP?
IOP, intraocular pressure, is an indication of how much fluid pressure is inside the eye. If there is too much production of this fluid or if the fluid does not drain properly it will cause the IOP to increase. Elevated IOP is commonly associated with glaucoma. High IOP alone does not cause glaucoma but it is one of many risk factors. Not everyone with elevated IOP will develop glaucoma and some people with normal IOP will develop glaucoma. For this reason, doctors routinely measure IOP and in some cases several times a day.