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Papilledema or papilloedema is optic disc swelling that is caused by increased intracranial pressure due to any cause. [1] The swelling is usually bilateral and can occur over a period of hours to weeks. [2] Unilateral presentation is extremely rare. In intracranial hypertension, the optic disc swelling most commonly occurs bilaterally.
Unilateral or bilateral optic disc edema may occur. The exact etiology, pathogenesis and mechanism of the disc edema is unknown. [ 1 ] [ 2 ] Theories suggest that the dis edema is due to retinal vascular leakage into and surrounding the optic nerve and disruption of axoplasmic flow resulting from microvascular disease of the optic nerve head. [ 2 ]
The more common features of the disease are summarized in the acronym POEMS: Papilledema (swelling of the optic disc) often but not always due to increased intracranial pressure) is the most common ocular sign of POEMS syndrome, occurring in ≥29% of cases.
It is used to detect and evaluate symptoms of various retinal vascular diseases and eye diseases. In patients with headaches , the finding of swollen optic discs ( papilledema ) on ophthalmoscopy is a key sign indicating raised intracranial pressure , which may be due to conditions such as hydrocephalus , benign intracranial hypertension ...
If the papilledema has been longstanding, visual fields may be constricted and visual acuity may be decreased. Visual field testing by automated perimetry is recommended as other methods of testing may be less accurate. Longstanding papilledema leads to optic atrophy, in which the disc looks pale and visual loss tends to be advanced. [5] [9]
disc edema in the contralateral eye central scotoma (loss of vision in the middle of the visual fields) in the ipsilateral eye The presence of anosmia (loss of smell) ipsilateral to the eye demonstrating optic atrophy was historically associated with this syndrome, but is now understood to not strictly be associated with all cases.
In children, optic disc drusen are usually buried and undetectable by fundoscopy except for a mild or moderate elevation of the optic disc. With age, the overlying axons become atrophied and the drusen become exposed and more visible. They may become apparent with an ophthalmoscope and some visual field loss at the end of adolescence. [7]
Papilledema: "The underlying mechanism for visual obscurations in all of these patients appear to be transient ischemia of the optic nerve head consequent to increased tissue pressure. Axonal swelling, intraneural masses, and increased influx of interstitial fluid may all contribute to increases in tissue pressure in the optic nerve head. The ...
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262 Neil Avenue # 430, Columbus, Ohio · Directions · (614) 221-7464