Webpart of optic nerve head which is supplied by the short branch of posterior ciliary arteries [7-9]. Majority of patients suffering from NAION has small optic discs which measures less than 0.3 mm, which is referred to as crowded disc and prone for ganglion cell death [10-14]. The optic nerve head can autoregulate the blood flow [15]. WebThe diagnosis of ONH is typically made by the appearance of small/pale optic nerve during a dilated eye exam. There can be a surrounding halo of yellow tissue bordered by a ring which is known as the double-ring sign. The retinal vessels may appear tortuous or have fewer branches, and special imaging of the retina (optical coherence tomography ...
Superior segmental optic hypoplasia as a differential ... - PubMed
WebApr 7, 2024 · Optic disc atrophy typically shows focal, wedged-shaped temporal optic atrophy, however diffuse atrophy may be present. As the primary pathology is the papillomacular bundle, central, centrocecal and paracentral scotomas are the most common visual field defects. Color vision deficits are common. WebNov 18, 2011 · Optic disc pallor in excess of cupping. Various insults can occur to the optic nerve and manifest ophthalmoscopically as pallor, atrophy, cupping and notching. By far, the most common optic nerve … d2 witch queen investigation
Visual Outcome for Children with Optic Pathway Gliomas Treated …
WebJun 27, 2015 · Anterior ischemic optic neuropathy (AION) was first described in 1974. 1 It results from non-perfusion of the posterior ciliary blood supply to the optic nerve head. 2 Classic symptoms of anterior ischemic optic neuropathy include sudden, painless vision loss, mild to severe vision loss, inferior altitudinal field defect, and optic disc edema, … WebYoung age at diagnosis, the extent of the tumor, and the presence of optic nerve head pallor were associated with a poor visual outcome in this cohort study. 20. Fisher et al conducted a retrospective multicenter analysis of visual outcomes in 88 children treated with chemotherapy for NF1-OPG, vision changes were improved, worsened, and stable ... WebAug 14, 2007 · As optic nerve drusen enlarge, they can compress and compromise nerve fibers and the vascular supply, leading to multiple complications including visual field defects, vascular occlusion, and … d2 witchwild