Recurrent chikungunya retinitis

Chikungunya is a systemic viral disease transmitted to humans by infected mosquitoes in endemic areas of Africa, Asia and more recently in the Americas. Chikungunya infection produces a sudden onset of fever, joint pains and erythematous skin eruption. A plethora of ocular manifestations have been described ranging from a non-specific conjunctivitis to exudative retinal detachment. Ocular chikungunya seems to respond well to corticosteroid therapy, and outcomes are usually better if treated early. Our patient acquired this infection on a travel to Mexico jungle. This was confirmed by ReverseTranscriptase-PCR test once she returned to the UK. The peculiarity of the case is the inordinate delay of almost a year in the onset of eye symptoms, from acquiring the viral infection. The ocular inflammation responded to systemic corticosteroid therapy with a favourable visual outcome. She developed a recurrence many months later which again responded well to a course of oral steroids.