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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. 38.

Fig. 38

Deeper region of the nerve fiber layer shows accumulation of tracer material in interstitial space (black and white arrows). Horseradish peroxidase-reaction product is entirely confined within its lumen (L). Horseradish peroxidase also infiltrates basement membrane of endothelial cells and pericytes (black arrows) (original magnification x 6,700). (Reproduced from Tso and Hayreh. 1977a)