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optic nerve
noun
- either one of the second pair of cranial nerves, consisting of sensory fibers that conduct impulses from the retina to the brain.
optic nerve
noun
- the second cranial nerve, which provides a sensory pathway from the retina to the brain
optic nerve
- Either of the second pair of cranial nerves, which carry sensory information relating to vision from the retina of the eye to the brain. Disease or injury of the optic nerve can result in partial or total blindness.
Word History and Origins
Origin of optic nerve1
Example Sentences
Light falls on the retina, goes through various layers of neurons, is sent down the optic nerve across the brain, and then all the way to the back of the brain where the visual cortex resides.
Light still streams into the eye through the unaffected lens, and that light could still make its way to the brain via the optic nerve.
They will also examine the optic nerve and retina after dilating your eyes with drops, and look inside your eyes with a microscope.
When you see a word, your retina and optic nerve send that information to the visual cortex, which creates the image you see.
Also the tender points of the fibres of the optic nerve would soon become blunted and the eye of course useless.
There are no colors; there is no light,—there is nothing but the ether waves, which cause a vibration of the optic nerve.
A diminution or total loss of sight, arising from paralysis of the retina or optic nerve.
Two people see a thing: put scientifically, the result of this is that each experiences a stimulation of the optic nerve.
Tell me how the optic nerve transmits to the thinking brain the perception of outward objects.
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