Is there a potential defect in the blood-retinal barrier at the choroidal level of the optic nerve canal?
D000818:Animals; D001369:Axons; D001485:Basement Membrane / Q000166:cytology; D001692:Biological Transport; D001769:Blood; D002196:Capillaries / Q000166:cytology; D002415:Cats; D002829:Choroid / Q000098:blood supply* / Q000166:cytology; D003239:Connective Tissue Cells; D004847:Epithelial Cells; D000882:Haplorhini; D006801:Humans; D008251:Macaca; D008566:Membranes / Q000166:cytology; D008854:Microscopy, Electron; D009457:Neuroglia; D009900:Optic Nerve / Q000166:cytology; D012160:Retina / Q000166:cytology