Ethambutol Optic Neuropathy - EyeWiki
网页Central vision loss is the most common visual field defect, including central or cecocentral scotoma (intra-axial form) on formal visual field testing. However, other possible visual defects include bitemporal hemianopsia due to optic chiasm involvement and peripheral field constriction (extra-axial form). Pupil responses may be normal ...
The rare ethambutol-induced optic neuropathy - PMC
网页2017年1月13日 · Ethambutol-induced optic neuropathy (EON) is a well-known complication that results from the use of ethambutol. The ocular manifestations of EON include painless loss of central vision and cecocentral scotomas in the visual field.
Visual fields in neuro-ophthalmology - PMC - National Center for ...
网页2010年6月18日 · In a prospective study of 52 patients (104 eyes) treated with ethambutol for 2 months, Menon et al. detected visual field defects in eight eyes (7.7%) of four patients at 2 months in the form of peripheral isopter constriction on Goldmann visual fields. None of the patients had any subjective visual complaints or abnormalities of central vision ...
Visual electrophysiology in the assessment of toxicity and …
网页2021年7月21日 · Visual field defects attributed to ethambutol toxicity are typically central or centrocaecal, but can also be extensive with homonymous or bitemporal patterns, raising the possibility that...
Ethambutol toxicity: Expert panel consensus for the primary …
网页2021年11月26日 · The biomarkers that may help detect ethambutol toxicity at the subclinical stage include a change in average RNFL thickness, most pronounced in the temporal quadrant (initial increase followed by decrease) and GCC thinning on OCT, reduction in visual field index, presence of visual field defect on the pattern standard deviation plot, and ...
Ocular Ethambutol Toxicity - Mayo Clinic Proceedings
网页Visual fields typically show a cecocentral or bitemporal defect. Dyschromatopsia may be the earliest sign of toxicity, and blue-yellow color changes are the most common. 6,7 Internal medicine literature frequently suggests that the toxic effects of ethambutol are readily reversible, albeit after some time; however, recent ophthalmologic ...
Visual outcomes of toxic optic neuropathy secondary to Etham ... - LWW
网页Ethambutol (EMB) is one of the first-line drugs used for treating tuberculosis. Vision loss due to optic nerve toxicity is a well-known potential side effect of the drug. Our aim was to evaluate the clinical features and visual outcomes …
Potential underlying mechanisms of ethambutol induced optic …
网页2023年12月1日 · The signs and symptoms of ethambutol-induced optic neuropathy are a decrease in visual acuity, defects in the visual field and color vision, the reduction of electrophysiology of optic nerve function, and the decreased thickness of the retinal nerve fiber layer and ganglion cell complex, ultimately leading to optic nerve atrophy, as ...
Bitemporal visual field defects in ethambutol-induced optic
网页Bitemporal visual field defects are common in ethambutol-induced optic neuropathy. The pattern may mimic chiasmal compression, and neuroimaging is required. It may reflect susceptibility to toxicity of chiasmal crossing fibers.
The rare ethambutol-induced optic neuropathy - journals.lww.com
网页2016年8月30日 · Ethambutol-induced optic neuropathy (EON) is a well-known complication that results from the use of ethambutol. The ocular manifestations of EON include painless loss of central vision and cecocentral scotomas in the visual field.
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