![]() Richard, a United States Army veteran, suffers from optic nerve damage. It is also responsible for transmitting visual information such as brightness perception, color perception, visual acuity, neurological reflexes, light reflex, and the accommodation reflex of the eye. The optic nerve is also a part of the central nervous system of the human body. Damage to these nerve fibers can cause severe impairment to a person’s vision. The nerve fibers in the eye help transmit visual signals from the retina to the brain. Each optic nerve contains more than a million nerve fibers. The optic nerve is one of these cranial nerves and is made up of retinal ganglion cells. Twelve cranial nerves emerge directly from the brain and are composed of a network of neurons. Diseases of the central nervous system or the brain can also result in optic nerve damage. This can occur due to eye diseases, trauma, injury, shock, toxins, and even radiation. Like other parts of the body, the optic nerve too can be damaged. This process is carried out by electric impulses. The job of the optic nerve is to transmit visual information of the outside world to the brain for processing. ![]() Also known as the second Cranial Nerve or Cranial Nerve II (CN II), the optic nerve is located at the very back of the eye.
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