The optic nerve is one of twelve, paired cranial nerves; it is also sometimes referred to as the cranial nerve II. The optic nerve conducts images seen by the eyes to the visual cortex where the brain interprets them. Each eyeball has its own optic nerve, but they split at a structure in the brain called the optic chiasm with half of the nerve signals from each eye swapping sides. This feature of neurology allows doctors to diagnose damage from traumatic brain injuries or disease affecting the optical nerve from the pattern of vision loss or disturbance experienced by the patient.
Bright Hub has collected together the most relevant and popular articles concerning the optic nerve and the other cranial nerves and placed them together in this convenient guide.
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