Acute optic neuritis following infection with chikungunya virus in southern rural India.

Objectives: To define acute optic neuritis following infection with chikungunya virus (CHIKV) and to determine the efficacy of treatment with corticosteroids of acute optic neuritis.

Methods: This was an observational study involving 10 patients, who were confirmed cases of infection with CHIKV with acute optic neuritis in one or both eyes. A complete ophthalmic examination was performed in all cases.