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Updated: Aug 16, 2026

The Rodent Model of Nonarteritic Anterior Ischemic Optic Neuropathy (rNAION)
Published on: November 20, 2016
Anterior ischemic optic neuropathy associated with rickettsia conorii infection
Moncef Khairallah1, Sonia Zaouali, Salim Ben Yahia
1Department of Ophthalmology, Fattouma Bourguiba University Hospital, Monastir, Tunisia. moncef.khairallah@rns.tn
Abstract:
A 43-year-old man with fever, headache, and skin rash developed unilateral acute anterior ischemic optic neuropathy. The indirect immunofluorescence test was positive for Rickettsia conorii. Although retinal lesions have been described in Rickettsia conorii infection, this is the first reported case of ischemic optic neuropathy. This infection should be considered in a patient with nonarteritic anterior ischemic optic neuropathy with high fever or skin rash who inhabits or travels from an endemic area.
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