Fig. 2.

a Histology: HE staining of the optic nerve at ×50 magnification. b HE. ×16 (resection specimen). c HE. ×200 (resection specimen).

a Histology: HE staining of the optic nerve at ×50 magnification. b HE. ×16 (resection specimen). c HE. ×200 (resection specimen).