1. Optic glioma  (Trust Mark: Doctor-Reviewed)
Gliomas are tumors that grow in various parts of the brain. Optic gliomas can affect: One or both of the optic nerves, which carry visual information to the brain from each eye; The optic chiasm, the area where the optic nerves cross each other in f...• Reviewer: James R. Mason, MD, Oncologist, Director, Blood and Marrow Transplantation Program and Stem Cell Processing Lab, Scripps Clinic, Torrey Pines, California. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.