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. Author manuscript; available in PMC: 2017 Jan 1.

Published in final edited form as: Prog Retin Eye Res. 2016 Jan;50:108–144. doi: 10.1016/j.preteyeres.2015.10.001

Fig. 9 — (A) Longitudinal section of the right optic nerve shows the atrophic patches in the lower part of the optic nerve (arrows) around the site of entry of the central retinal vessels, caused by cautery burn.

(B,C) Optic discs with raised CSF pressure show optic disc edema in the entire left optic disc (B), but only in the upper half of the right disc, and none in the lower atrophic half (C). (D,E) A section through the upper part of the right optic disc shows edema (D), but lower part of the optic disc in the same section shows optic atrophy (E). (A-E Reproduced from Hayreh SS. l968)

Fig. 9 — (A) Longitudinal section of the right optic nerve shows the atrophic patches in the lower part of the optic nerve (arrows) around the site of entry of the central retinal vessels, caused by cautery burn.

(B,C) Optic discs with raised CSF pressure show optic disc edema in the entire left optic disc (B), but only in the upper half of the right disc, and none in the lower atrophic half (C). (D,E) A section through the upper part of the right optic disc shows edema (D), but lower part of the optic disc in the same section shows optic atrophy (E). (A-E Reproduced from Hayreh SS. l968)