WebNonarteritic anterior ischemic optic neuropathy (NAION) is the most common cause of unilateral optic neuropathy in adults over the age of 50, and is commonly associated with vascular risk factors such as diabetes or hypertension.22Other risk factors include a crowded optic nerve head (small cup to disc ratio) and nocturnal hypotension, possibly … WebNov 13, 2024 · Based on initial histopathological studies, the optic nerve cupping in glaucoma was thought to result from the loss of ganglion cell axon fibers and thinning and the posterior displacement of the lamina cribrosa. 1 – 3 When intraocular pressure is high, diagnosis of glaucoma is relatively easy.
Vogt-Koyanagi-Harada Disease - EyeWiki
WebOct 1, 2024 · Papilledema occurs when increased brain pressure caused by tumors or other problems results in swelling of the optic nerve. Swelling of the optic disk, usually in … WebAug 15, 2024 · Diagnosis. Based upon the history of abrupt painless vision loss, an inferiorly located visual field defect, a hyperemic edematous optic disc and a classic “disc at risk” … how big can a cashier\u0027s check be
Clinical and Optic Disc Characteristics of Patients …
WebSuperior Segmental Optic Nerve Hypoplasia (SSONH), also termed “topless optic disc,” is a congenital condition characterized by reduced numbers of regional ganglion cells (RGCs) in the superior optic disc. This condition may feature four characteristic findings: a superior entrance of the central retinal artery, pallor of the superior optic disc, superior peripapillary … WebSwelling of the nerve fiber layer, which blurs the disc margins and the peripapillary vessels, is a hallmark of papilledema. 1 Buried drusen also produce elevation of the disc and blurring … WebPapilledema is a term that is exclusively used when a disc swelling is secondary to increased intracranial pressure (ICP). It must be distinguished from optic disc swelling … how big can a carry on be for jet blue