WebIntroduction. Optic disc pits (ODPs) are congenital anomalies of the optic nerve head, first described by Wiethe 1 in 1882 as black cavities on the optic nerve head observed in one eye of a 62-year-old woman. The prevalence of ODP is estimated to be one in every 11,000 patients. 2,3 In about 70% of cases, the ODPs are located on the temporal side of the disc … WebThe optic disc (OD), also termed as optic nerve head (ONH), is the point where the retinal vessels originate. OD carries much vital information related to glaucoma and proliferative …
Basic Histology of the Eye and Accessory Structures - EyeWiki
WebSep 28, 2024 · PATHOPHYSIOLOGY The most common pathologic basis for optic neuritis is inflammatory demyelination of the optic nerve. The pathology is similar to that of acute multiple sclerosis (MS) plaques in the brain, with perivascular cuffing, edema in the myelinated nerve sheaths, and myelin breakdown. WebMay 6, 2024 · Papilledema refers to optic disc edema due to increased intracranial pressure, while optic disc edema is the more general term that can be from any etiology. Pathology Etiology idiopathic intracranial hypertension (pseudotumor cerebri) intracranial masses primary CNS malignancies cerebral metastases hydrocephalus extra-axial fluid collection original baywatch movie cast
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WebMay 24, 2024 · Optic pathway gliomas (OPG) are low-grade neoplasms arising from the pre-cortical optic pathways. OPG can involve the optic nerve, optic chiasm, optic tracts, optic radiations, or the hypothalamus. … WebThis can be caused by: Inflammation of the arteries that supply blood to the optic nerve Narrowed arteries Decreased blood flow to the optic nerve A drop in blood pressure that … WebEyes with a Heidelberg Retina Tomograph II (HRT) examination, at least 5 visual field tests after the HRT in either eye, optic disc photographs, and <6 diopters of myopia were enrolled. beta-Zone PPA was defined as a region of chorioretinal atrophy with visible sclera and choroidal vessels adjacent to the optic disc. original bay rum after shave