Intraocular pressure (IOP) is the fluid pressure inside the eye. IOP is an important aspect in the evaluation of patients at risk from having Glaucoma. Tonometry is the method eye care professionals use to determine this.
Our human eye will normally have an eye pressure ranges from 10-20 mm Hg. Ocular hypertension means that eye pressure is greater than 21 mm Hg. Ocular hypertension is an important risk factor for people having glaucoma.
Glaucoma is usually, but not always, associated with elevated pressure in the eye. Glaucoma can also be considered as a condition of the optic nerve, or optic neuropathy.
Hence, in general the vision loss in glaucoma usually occurs both eyes. As in many other disease states, vision loss may not be symmetric, that is, one eye may be worse than the other.
Vision loss due to glaucoma often begins with a subtle decrease in peripheral vision. If the glaucoma is not diagnosed and treated, it may progress to loss of central vision and blindness.
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