Author:

Abstract

Aim: To present a case of secondary exotropia following H₁N₁ viral infection (‘swine’ influenza).

Method: The case of a 27-year-old woman with optic atrophy and secondary exotropia with previous history of H₁N₁ viral infection is presented.

Result: H₁N₁ infection led to optic atrophy and secondary exotropia.

Conclusion: Optic atrophy is a common cause for secondary exotropia; however, the H₁N₁ virus is a very rare cause for such optic neuropathy. Recent worldwide pandemics and immunisation programmes may increase the chance of clinical presentation.

Keywords: H1N1, ‘Swine’ influenza, Optic atrophy, Optic neuropathy, Secondary exotropia, Vaccination