Fig. 24: Diagrammatic representation of blood supply of the various parts of the optic nerve, and location of the Circle of Haller and Zinn (CZ), as seen from above. (Reproduced from Hayreh 1963 [5])
Ant. Sup. Hyp. Art. = anterior superior hypophyseal artery; CAR = central retinal artery; Col. Br. = Collateral branches; CZ = circle of Zinn and Haller; ICA = internal carotid artery; LPCA = lateral posterior ciliary artery; Med. Mus. = medial muscular artery; MPCA = medial posterior ciliary artery; OA = ophthalmic artery; Rec. Br. CZ = recurrent pial branches from peripapillary choroid/CZ.
