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optic nerve
optic nerve The optic nerve connects the retina to the visual cortex in the back of the brain. Increased intracranial pressure, tumours, and increased vascular pressure in the eye are possible mechanisms by which the optic nerve can become damaged, impairing vision.

optic neuritis

pathology
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Written by
Daniel M. Albert
Professor of Ophthalmology, University of Wisconsin at Madison. Professor of Ophthalmology, Wisconsin Alumni Research Foundation.
Daniel M. Albert,
David M. Gamm
Assistant Professor of Ophthalmology and Visual Sciences at the University of Wisconsin Eye Research Institute, Waisman Center.
David M. Gamm•All
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optic neuritis, inflammation of the optic nerve (the second cranial nerve). The inflammation causes a fairly rapid loss of vision in the affected eye, a new blind spot (a scotoma, usually in or near the centre of the visual field), pain in the eyeball (often occurring with eye movement), abnormal colour vision, and unusual flashes of light. The condition affects young to middle-aged people and affects women more often than men. The optic nerve carries visual data from the retina of the eye to a relay station in the centre of the brain (the lateral geniculate nucleus) for transmission to ...(100 of 285 words)

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