title: Central retinal artery originating from the temporal short posterior ciliary artery associated with intraorbital external-to-internal carotid arterial anastomoses.
abstract: Although variations in the peripapillary division pattern of the central retinal artery (CRA) are common, variations in the origin of this artery are seldom reported in the literature. Herein, the authors report a variant of the CRA that originated from the temporal short posterior ciliary artery. Two intraorbital anastomoses were also noted between the internal and external carotid arterial systems: one through the lacrimal artery-middle meningeal artery to the ophthalmic artery and the other through supraorbital artery-recurrent meningeal artery to the ophthalmic artery. A brief review of CRA variations and potential clinical significances of the observed variant are discussed.
authors.affiliation: Department of Ophthalmology, Ocular Vascular Research Center, Glaucoma Research and Diagnostic Center, Eugene and Marilyn Glick Eye Institute, Indiana University School of Medicine, Indianapolis, IN 46202, USA. shoja.m@gmail.com
authors.forename: Mohammadali M
authors.initials: MM
authors.lastname: Shoja
authors.forename: Alon
authors.initials: A
authors.lastname: Harris
authors.forename: Yochai
authors.initials: Y
authors.lastname: Shoshani
authors.forename: Brent
authors.initials: B
authors.lastname: Siesky
authors.forename: Sally
authors.initials: S
authors.lastname: Primus
authors.forename: Marios
authors.initials: M
authors.lastname: Loukas
authors.forename: R Shane
authors.initials: RS
authors.lastname: Tubbs
mesh_terms: D000015:Abnormalities, Multiple / Q000175:diagnosis*; D000792:Angiography / Q000379:methods; D002102:Cadaver; D002342:Carotid Artery, External / Q000002:abnormalities* / Q000601:surgery; D002343:Carotid Artery, Internal / Q000002:abnormalities* / Q000601:surgery; D019842:Ciliary Arteries / Q000002:abnormalities*; D004210:Dissection; D005123:Eye / Q000033:anatomy & histology / Q000098:blood supply; D006801:Humans; D012161:Retinal Artery / Q000002:abnormalities*; D054079:Vascular Malformations / Q000175:diagnosis*