All prepapillary arterial loops are not alike.
Parsa
C F
CF
Hoyt
W F
WF
D006801:Humans; D009898:Optic Disk / Q000098:blood supply*; D012161:Retinal Artery / Q000473:pathology*; D015356:Retinal Artery Occlusion / Q000150:complications*; D012164:Retinal Diseases / Q000209:etiology* / Q000473:pathology