Sudden bilateral vision loss: a case report of frosted branch angiitis following pentavalent vaccination in a 2-year-old boy

This case highlights the potential association between pentavalent vaccination and the onset of idiopathic FBA. The pathophysiology behind this association remains speculative, with potential mechanisms including immune dysregulation and molecular mimicry. Prompt recognition and treatment with systemic steroids can lead to favorable outcomes, emphasizing the importance of monitoring visual symptoms in pediatric patients following vaccination.