Optic Nerve Injuries

**Definition:** Injuries to the optic nerve induced by a trauma to the face or head. These may occur with closed or penetrating injuries. Relatively minor compression of the superior aspect of orbit may also result in trauma to the optic nerve. Clinical manifestations may include visual loss, PAPILLEDEMA, and an afferent pupillary defect.

**Tree numbers:** - C10.292.200.750 - C10.292.700.475 - C10.900.300.218.550 - C11.640.530 - C26.915.300.400.650

**Synonyms:** - Optic Nerve Trauma - Optic Neuropathy, Traumatic - Second Cranial Nerve Trauma - Cranial Nerve II Injuries - Second Cranial Nerve Injuries - Trauma, Second Cranial Nerve