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    J Ocul Pharmacol Ther. 2005 Aug;21(4):315-7.

    Case report: association of combined nonarteritic anterior ischemic optic neuropathy (NAION) and obstruction of cilioretinal artery with overdose of Viagra.

    Akash R, Hrishikesh D, Amith P, Sabah S.

    Department of Ophthalmology, Chesterfield Royal Hospital, Calow, Chesterfield, United Kingdom. doc_akash2002@yahoo.co.uk

    AIMS: We report on a case of combined nonarteritic anterior ischemic optic neuropathy (NAAION) and cilioretinal artery occlusion resulting from misuse of sildenafil citrate (Viagra Pfizer Pharmaceuticals, New York, NY). DESIGN: This is an observational case report. METHODS: A 54-year-old white man developed blindness in his left eye after an overdose of Viagra. He was examined and fully evaluated. RESULTS: Ocular examinations revealed a left relative afferent pupillary defect and a left combined NAAION and obstruction of the ipsilateral cilioretinal artery. CONCLUSIONS: Although ocular side-effects of Viagra are rare, they are potentially blinding. Patients should be warned about the side-effects and against misuse of this agent.

    PMID: 16117695 [PubMed - indexed for MEDLINE]

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