Purpose: To characterize evolution of deferoxamine-related retinal toxicity in a patient exposed to supratherapeutic doses of deferoxamine and progression despite dose reduction and cessation.
Methods: Observational clinical case Report.
Results: A 59-year-old female with history of beta thalassemia requiring biweekly blood transfusions developed peripheral visual field loss and nyctalopia after taking supratherapeutic dosage of deferoxamine. She demonstrated progressive RPE thickening and photoreceptor loss despite reduction in dosage as she was unable to initially discontinue the medication, as vision decreased from 20/25 and 20/30 to 20/60 and 20/50. This report highlights the ocular toxicities linked with deferoxamine and examines whether dosage decrease reverses its effects.
Conclusion: Deferoxamine use can precipitate RPE changes, thickening, and photoreceptor loss that can progress despite dose-reduction and cessation.
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