Role of Inferior Rectus Botulinum Toxin Injection in Vertical Strabismus Resulting from Orbital Pathology

Introduction: We describe the uses and efficacy of botulinum toxin injection to the inferior rectus muscle in vertical strabismus resulting from orbital pathology.Methods: A retrospective review of patients undergoing inferior rectus botulinum toxin injection between 1982 and 2006 for vertical strabismus due to orbital pathology.Results: There were 13 patients identified; 6 with idiopathic orbital inflammatory syndrome (IOIS) including myositis,...