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Ocular features of west nile virus infection in North America: a study of 14 eyes.
Chan Clement K, Limstrom Scott A, Tarasewicz Dariusz G, Lin Steven G
OphthalmologySep 200671 citationsCase Series
This study of 14 eyes found West Nile virus often causes multifocal chorioretinitis, typically benign. However, severe lesions like optic neuritis, more common in diabetics/elderly, can cause permanent vision loss.