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Ocular hypertension is the presence of elevated fluid pressure inside the eye (intraocular pressure), usually with no optic nerve damage or visual field loss. [ 1 ] [ 2 ] For most individuals, the normal range of intraocular pressure is between 10 mmHg and 21 mmHg. [ 3 ]
Strongly modulated blood flow pulse in central and branch arteries can result from hypertension. Microangiography by laser Doppler imaging [3] may reveal altered hemodynamics non-invasively. Mild signs of hypertensive retinopathy can be seen quite frequently in normal people (3–14% of adult individuals aged ≥40 years), even without ...
Ocular hypertension (OHT) is defined by intraocular pressure being higher than normal, in the absence of optic nerve damage or visual field loss. [ 13 ] [ 14 ] Ocular hypotension, hypotony, or ocular hypotony , is typically defined as intraocular pressure equal to or less than 5 mmHg.
Polypoidal choroidal vasculopathy (PCV) is an eye disease primarily affecting the choroid. It may cause sudden blurring of vision or a scotoma in the central field of vision . Since Indocyanine green angiography gives better imaging of choroidal structures, it is more preferred in diagnosing PCV.
Ocular hypertension (IOP 30 - 70 mmHg) with open angle of anterior chamber and unilateral mild granulomatous anterior uveitis are hallmark signs of Posner–Schlossman syndrome. [2] On slit-lamp examination, conjunctival injections, epithelial corneal edema, [ 3 ] small to medium-sized fine keratitic precipitates, aqueous cells and flare may ...
Chronic intermittent hypoxia impairs endothelial function, reducing nitric oxide production, which leads to vasoconstriction and reduced blood flow to the optic nerve head. Additionally, fluctuations in pressure within the thoracic cavity during apnea episodes can alter intraocular pressure, affecting the blood supply to the optic nerve head .
Brimonidine is an α 2 agonist medication used to treat open-angle glaucoma, ocular hypertension, and rosacea. [4] [5] In rosacea it improves the redness. [5] It is used as eye drops or applied to the skin. [4] [5] It is also available in the fixed-dose combination medication brimonidine/timolol along with timolol maleate. [6]
Glaucoma is an eye disease often characterized by increased pressure within the eye or intraocular pressure (IOP). [61] Glaucoma causes visual field loss as well as severs the optic nerve. [62] Early diagnosis and treatment of glaucoma in patients is imperative because glaucoma is triggered by non-specific levels of IOP. [62]