optic nerve

Either of the second pair of cranial nerves that arise from the retina and carry visual information to the thalamus and other parts of the brain.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

optic nerve

(Physiology) the second cranial nerve, which provides a sensory pathway from the retina to the brain

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

op′tic nerve′

either of a pair of cranial nerves consisting of sensory fibers that conduct impulses from the retina to the brain.

[1605–15]

optic nerve

The nerve that carries sensory information on vision from the retina of the eye to the brain. The optic nerve is a cranial nerve.

The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

ThesaurusAntonymsRelated WordsSynonymsLegend:

Noun

optic nerve - the cranial nerve that serves the retina

nervus opticus, optic tract, second cranial nerve

visual system - the sensory system for vision

cranial nerve - any of the 12 paired nerves that originate in the brain stem

betweenbrain, diencephalon, interbrain, thalmencephalon - the posterior division of the forebrain; connects the cerebral hemispheres with the mesencephalon

Translations

Sehnerv

nervo ottico

optic nerve

n → Sehnerv m

Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007

Mentioned in

References in classic literature

There's no tint of pain, real pain, in the sensations of the optic nerve. If you wound the optic nerve, you merely see flashes of light,-- just as disease of the auditory nerve merely means a humming in our ears.

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In the Articulata we can commence a series with an optic nerve merely coated with pigment, and without any other mechanism; and from this low stage, numerous gradations of structure, branching off in two fundamentally different lines, can be shown to exist, until we reach a moderately high stage of perfection.

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Just as a photographic plate receives a different impression of a cluster of stars when a telescope is part of the intervening medium, so a brain receives a different impression when an eye and an optic nerve are part of the intervening medium.

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In the common mole the eye is extraordinarily small but perfect, though many anatomists doubt whether it is connected with the true optic nerve; its vision must certainly be imperfect, though probably useful to the animal when it leaves its burrow.

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The light from it had beat upon his sealed lids, and the eyes and the optic nerves had pulsated to little, sparklike flashes, warm-coloured and strangely pleasing.

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And it seemed to me that his eyes were strange, not only the expression, but the physical seeming, as though the optic nerves and supporting muscles had suffered strain and slightly twisted the eyeballs.

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[USA], Aug 24 (ANI): Researchers found new mechanisms that enables the regeneration of nerve fibers, which could open up new treatment approaches for the brain, optic nerve, and spinal cord injuries.

Study finds mechanism to heal injured nerve fibers: Study

They do this by stimulating the optic nerve with a new type of intraneural electrode called OpticSELINE.

Optic Nerve Stimulation to Aid Blind

ENPNewswire-August 20, 2019--EPFL: Optic nerve stimulation to aid the blind

EPFL: Optic nerve stimulation to aid the blind

Fact.MR has announced the addition of the "Optic Nerve Disorders Drugs Market Forecast, Trend Analysis & Competition Tracking - Global Market Insights 2018 to 2026"report to their offering.

New Research Report on Wireless Optic Nerve Disorders Drugs Market 2018 to 2026

Summary: Optic nerve disorder, commonly known as optic neuropathy, is a medical condition indicating degeneration of the optic nerve.

Optic Nerve Disorders Drugs Market Growth Focusing on Trends & Innovations during the Period Until 2

It discusses comparison to fluorescein angiography, terminology, and interpretation of inner and outer retinal disorders, including diseases of the optic nerve head, along with case studies of inner retinal pathology, outer retinal disease, diseases of the choroid, and optic nerve disease.

Optical Coherence Tomography Angiography Atlas: A Case Study Approach