What is Optic nerve?
The '''optic nerve''', also known as '''cranial nerve II''' or simply as '''CN II''', is one of twelve [[Cranium|cranial]] [[nerve]]s but is also considered to be part of the [[central nervous system]]. It sends information from the [[retina]] (the outermost part of the [[eye]]) to the [[brain]]. The brain forms a picture using the information so that you can see things. The retina sees the image upside-down and the optic nerve sends it to the brain so it turns it back into normal. <ref>{{cite web |last1=M.D |first1=Gregory H. Scimeca |title=Your Eyes See Upside Down and Reversed - Board Certified Eye Doctors {{!}} Burlington Bucks County Millville |url=https://bceye.com/retinal-image-inverted-reversed/ |accessdate=15 October 2023 |language=en |date=11 November 2019 |archive-date=15 October 2023 |archive-url=https://web.archive.org/web/20231015012137/https://bceye.com/retinal-image-inverted-reversed/ |url-status=dead }}</ref> ==References== {{reflist}} {{Cranial nerves}} [[Category:Anatomy of the nervous system]] [[Category:Eye anatomy]] [[Category:Optometry]] {{biology-stub}}