Organization The Army, as one of the three military departments (Army, Navy and Air Force) reporting to the Department of Defense, is composed of two distinct and equally important components: the active component and the reserve components. The reserve components are the United States Army Reserve and the Army National Guard.
A common cause of this condition is a brain tumor, especially on the frontal lobe, in which force is applied to the skull. Another is an increase in the cerebrospinal fluid which is present between your brain and skull. These are the only causes that would make optic nerve inflammation to be called Papilledema.
Thus, if there is a question of papilledema on fundoscopic examination or if the optic disc cannot be adequately visualized, ultrasound can be used to rapidly assess for increased intracranial pressure and help direct further evaluation and intervention. Unilateral papilledema can suggest a disease in the eye itself, such as an optic nerve glioma