Figure 1.

Canine optic nerve head and cells expressed myocilin protein. A: Sagittal section of H&E stained beagle optic nerve showing normal morphology. Dark pink shows central vessels, light blue indicates nuclei of glial columns, light pink stains nerve bundles, dark blue stains pigmented layers. Original magnification 10X. B: Canine optic nerve head glia migrating from explanted optic nerve head (lower right). Original magnification 20X. C: Canine optic nerve head cells after passage. Original magnification 40X.