Optic Nerve Pathway. The optic tract is the intracranial continuation of the optic nerve. Like CN II, the optic tract is paired. Each is made up from temporal fibers arising from the retina of the ipsilateral eye, as well as nasal fibers originating from the retina of the contralateral eye.What is an abnormal optic nerve?
Optic nerve atrophy is damage to the optic nerve. The optic nerve carries images of what the eye sees to the brain. There are many causes of optic atrophy. The most common is poor blood flow. This is called ischemic optic neuropathy. The problem most often affects older adults.What is the origin of the optic nerve?
In terms of its embryonic development, the optic nerve is a part of the central nervous system (CNS) rather than a peripheral nerve. The word "optic" comes from the Greek "optikos", pertaining to sight.