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Macular thickness as a predictor of loss of visual sensitivity in ethambutol-induced optic neuropathy
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Macular thickness as a predictor of loss of visual sensitivity in ethambutol-induced optic neuropathy
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Macular thickness as a predictor of loss of visual sensitivity in ethambutol-induced optic neuropathy
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Journal Article
Macular thickness as a predictor of loss of visual sensitivity in ethambutol-induced optic neuropathy
2016
Overview
Ethambutol is a common cause of drug-related optic neuropathy.Prediction of the onset of ethambutol-induced optic neuropathy and consequent drug withdrawal may be an effective method to stop visual loss.Previous studies have shown that structural injury to the optic nerve occurred earlier than the damage to visual function.Therefore,we decided to detect structural biomarkers marking visual field loss in early stage ethambutol-induced optic neuropathy.The thickness of peripapillary retinal nerve fiber layer,macular thickness and visual sensitivity loss would be observed in 11 ethambutol-induced optic neuropathy patients（22 eyes） using optical coherence tomography.Twenty-four healthy age-and sex-matched participants（48 eyes） were used as controls.Results demonstrated that the temporal peripapillary retinal nerve fiber layer thickness and average macular thickness were thinner in patients with ethambutol-induced optic neuropathy compared with healthy controls.The average macular thickness was strongly positively correlated with central visual sensitivity loss（r2=0.878,P=0.000）.These findings suggest that optical coherence tomography can be used to efficiently screen patients.Macular thickness loss could be a potential factor for predicting the onset of ethambutol-induced optic neuropathy.
Publisher
Wolters Kluwer - Medknow Publications,Medknow Publications and Media Pvt. Ltd,Medknow Publications & Media Pvt. Ltd,Department of 0phthalmology, Chinese PLA General Hospital, Beijing, China,Medknow Publications & Media Pvt Ltd,Wolters Kluwer Medknow Publications
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