PURPOSE: To report a successfully managed case of idiopathic Fusarium sclerouveitis in a healthy patient with no identifiable risk factors. METHODS: We describe a case of a 79-year-old man who presented with right-sided eye, facial, and head pain. Initial examination revealed temporal scleral thinning, inflammation, and anterior chamber cell/flare. Cultures were positive for Fusarium species. RESULTS: The patient was treated with sub-Tenon amphotericin, intrascleral voriconazole, surgical debridement, Rose Bengal photodynamic therapy, systemic voriconazole and posaconazole, and topical natamycin. The infection resolved and the patient's visual acuity improved to 20/40. CONCLUSIONS: Fusarium sclerouveitis can occur without clear risk factors. This case highlights the importance of an aggressive, multimodal treatment approach for successful management.