Persistent dorsal ophthalmic artery
Citation, DOI & article data
The persistent dorsal ophthalmic artery is a rare anatomical variant of the ophthalmic artery. Instead of arising from the supraclinoid (C6) segment of the internal carotid artery, as is normally the case, the persistent dorsal ophthalmic artery arises from the lateral aspect of the cavernous (C4) segment (at or near the inferolateral trunk) and passes into the orbit via the superior orbital fissure (instead of the optic canal) 1,3 or occasionally a duplicated optic canal 2.
The term persistent dorsal ophthalmic artery may, in fact, be a misnomer as it may represent the persistence of the primitive maxillary artery, which is the only supply of the orbit from the internal carotid artery in the embryo 2. According to some authors, what is commonly referred to as the persistent dorsal ophthalmic artery should actually be known as the persistence of the lateral branch of the primitive maxillary artery 2.
- 1. Uchino A, Saito N, Takahashi M et al. Persistent Dorsal Ophthalmic Artery and Ophthalmic Artery Arising from the Middle Meningeal Artery Diagnosed by MR Angiography at 3 T. Surg Radiol Anat. 2013;35(9):775-82. doi:10.1007/s00276-013-1085-5 - Pubmed
- 2. Bertelli E, Regoli M, Bracco S. An Update on the Variations of the Orbital Blood Supply and Hemodynamic. Surg Radiol Anat. 2017;39(5):485-96. doi:10.1007/s00276-016-1776-9 - Pubmed
- 3. Agarwal N, Singh P, Karimi R, Gandhi C, Prestigiacomo C. Persistent Vestige of Dorsal Ophthalmic Artery: A Case Report. J NeuroIntervent Surg. 2012;5(4):e25. doi:10.1136/neurintsurg-2011-010196 - Pubmed