Supernumerary Abducens Nerves: A Comprehensive Review

Branching and/or replication of the abducens nerve is not an uncommon occurrence. Although numerous variations have been documented, the rarest forms are duplicated or triplicated nerves, where multiple nerve roots originate from the brainstem, travel intracranially, and attach to the lateral rectus as separate entities. We conducted a systematic literature search on the topic of supernumerary abducens nerve, using PubMed and Google Scholar....