Purpose: We studied a case in which a patient had unilateral retinal infiltrates and a retinal vasculopathy resembling frosted branch angiitis. He later admitted to injecting cocaine intravenously.
Methods: The patient underwent a pars plana vitrectomy and received intravitreal and intravenous amphotericin B.
Results: The vitreous fluid grew Fusarium dimerium. There was rapid response to the treatment and full recovery of vision.
Conclusion: Fusarium species should be considered as a potential pathogen in intravenous drug abusers with endogenous endophthalmitis and in patients with unilateral frosted branch angiitis.