Fig. 21: Photograph of inferior surface of the intraorbital part of the optic nerve (ON) and adjacent eyeball (EB) showing ophthalmic artery (OA) with its lateral (LPCA) and medial (MPCA) posterior ciliary arteries and central retinal artery (CRA). Note a common trunk of origin of MPCA and CRA from the ophthalmic artery. (click on image for enlargement) (Reproduced from Hayreh, 2009 [74])
