Secondary exotropia following H1N1 viral infection (‘swine’ influenza)

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