Dr. Mahmoud Messerer is Associate Professor in Department of neurosurgery at Paris Sud University, France. He is also working as a Neurosurgeon in Department of neurosurgery, Centre Hospitalier Universitaire Vaudois, Suisse. He completed his training at the CHUV. He is also a founding member of a research unit on the diameter of the optic nerve and its relationship with intracranial hypertension. His research interests includes endoscopic surgery of the base of the skull, neurosurgery.