Orbital supratrochlear fistula secondary to anaesthetic block in cataract surgery

Abstract A case is described of a woman with history of right peribulbar nerve block prior to cataract surgery that, within a few days, presented with a trochlear intraorbital arteriovenous fistula (IAVF). This was resolved without sequelae after three months by performing intermittent homolateral carotid massages. This is the first case of supratrochlear IAVF. There are only 8 cases reported of traumatic IAVF, and only one was with post-peribulbar anaesthesia.