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To the Editor.–During recent years, we, along with the collaboration of Dr A. Neetens, were interested in the vascularization of the optic nerve. We thought, on the one hand, that there was nearly always an axial vascular system of the optic nerve, which in 25% of the cases was represented by an individualized central artery, and on the other hand, that the central retinal artery gave no or only one or two branches inside the optic nerve.
With the collaboration of Dr A. Fryczkowski, we examined a new series of 40 optic nerves to serve as a control for our previous assumptions. These are probably not completely correct. Indeed, in 85% of the cases of this new series, the central retinal artery gave off 1 to 11 intraneural branches for the blood supply of the optic nerve. These branches might leave the artery at any part of its course
Francois J. Vascularization of the Optic Nerve. Arch Ophthalmol. 1977;95(3):520. doi:10.1001/archopht.1977.04450030162028