Pressure, intraocular
The pressure created by the continual renewal of fluids within the eye. The intraocular pressure is increased in glaucoma. In acute angle-closure glaucoma, the intraocular pressure rises because the canal into which the fluid in the front part of the eye normally drains is suddenly blocked. In chronic glaucoma, there is a gradual imbalance between the production and removal (resorption) of the fluid in the back part of the eye (with supply exceeding demand).

Medical dictionary. 2011.

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  • Intraocular pressure — (IOP) is the fluid pressure inside the eye. Physiology and measurementIntraocular pressure is mainly determined by the coupling of the production of aqueous humor from the eye s ciliary body and its drainage through the trabecular meshwork and… …   Wikipedia

  • intraocular — [in΄trə äk′yo͞o lər] adj. located within, or surgically implanted into, an eyeball [intraocular pressure, intraocular lens] …   English World dictionary

  • Intraocular hemorrhage — (sometimes hemophthalmos or hemophthalmia) is bleeding (hemorrhage) into the eyeball ( oculus in Latin. It may be the result of physical trauma (direct injury to the eye) and/or medical illness. Severe hemorrhage, particularly when leading to… …   Wikipedia

  • intraocular pressure — pressure within the eye caused by fluid in the orbit …   English contemporary dictionary

  • Intraocular pressure — The pressure created by the continual renewal of fluids within the eye. The intraocular pressure is increased in glaucoma. In acute angle closure glaucoma, the intraocular pressure rises because the canal into which the fluid in the front part of …   Medical dictionary

  • Intraocular lens — An intraocular lens (IOL) is an implanted lens in the eye, usually replacing the existing crystalline lens because it has been clouded over by a cataract, or as a form of refractive surgery to change the eye s optical power. It usually consists… …   Wikipedia

  • Intraocular — In the eye. The intraocular pressure is the pressure within the eye. * * * Within the eyeball. * * * in·tra·oc·u·lar .in trə äk yə lər, (.)trä adj implanted in, occurring within, or administered by entering the eyeball <intraocular… …   Medical dictionary

  • intraocular pressure — noun pressure exerted by the fluids inside the eyeball; regulated by resistance to the outward flow of aqueous humor glaucoma can result from increased intraocular pressure • Syn: ↑IOP • Hypernyms: ↑pressure, ↑pressure level, ↑force per unit area …   Useful english dictionary

  • Intraocular tension — The pressure within the eye. See: Intraocular pressure. * * * see under pressure. Symbol T …   Medical dictionary

  • pressure — 1. A stress or force acting in any direction against resistance. 2. (P, frequently followed by a subscript indicating location)In physics and physiology, the force per unit area exerted by a gas or liquid against the walls of its container or… …   Medical dictionary

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