An update on ocular complications of Ebola virus disease

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Purpose of reviewThis review provides a summary of our current understanding of the ophthalmic manifestations of Ebola virus disease (EVD), pathogenesis, treatment options and directions for future study. The individual, public health and global health implications of eye disease in EVD survivors are discussed.Recent findingsThe West Africa EVD outbreak was of unprecedented magnitude, leading to the largest survivor cohort since the first documented EVD outbreak in 1976. Because of the magnitude of the recent outbreak, thousands of survivors are at-risk of systemic and ophthalmic sequelae termed the ‘post Ebola virus disease syndrome’. Uveitis is the most common finding during EVD convalescence and may lead to severe vision impairment or blindness in 40% of affected individuals. Ocular complications leading to vision loss include cataract, retinal scarring, optic neuropathy, hypotony and phthisis bulbi. The pathogenesis of eye disease in EVD survivors likely involves Ebola virus persistence, severe inflammation and tissue edema, which present as acute, rapidly progressive disease or chronic, smoldering disease. Further studies into disease pathogenesis including mechanisms of viral persistence may provide guidance into therapies for uveitis secondary to EVD.SummaryUveitis is the most common ophthalmic finding in EVD survivors and can lead to vision loss. Further studies into the clinical manifestations and mechanisms of disease are needed to improve therapies for EVD survivors who often have limited access to ophthalmic medical and surgical care.

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