title: Putative non-uniting double central retinal artery system.
abstract: OBJECTIVE
  To report a case of probable non-uniting double retinal arterial circulation.
  
  
  METHODS
  Case report. A 66-year-old man suffered central retinal artery occlusion.
  
  
  RESULTS
  The medical findings and angiographic workup supported the existence of double central retinal circulation not uniting before entering the globe and independently branching in the retina.
  
  
  CONCLUSIONS
  In previously recognized unusual anatomic structures of the central retinal artery two parallel arteries were recognized, both of which united before entering the globe. We have described a rare anatomic variant in which those arteries remained separated after entering the globe, including while branching in the retina.
authors.affiliation: Department of Ophthalmology, Rambam Medical Center, Haifa, Israel.
authors.forename: I
authors.initials: I
authors.lastname: Beiran
authors.forename: Y
authors.initials: Y
authors.lastname: Gelfand
authors.forename: B
authors.initials: B
authors.lastname: Miller
mesh_terms: D000368:Aged; D001775:Blood Circulation; D005124:Eye Abnormalities / Q000175:diagnosis*; D005451:Fluorescein Angiography; D006801:Humans; D008297:Male; D012039:Regional Blood Flow; D012161:Retinal Artery / Q000002:abnormalities*; D015356:Retinal Artery Occlusion / Q000175:diagnosis*