optic neuropathy


Also found in: Dictionary, Thesaurus, Encyclopedia, Wikipedia.
Related to optic neuropathy: optic neuritis, Ischemic optic neuropathy

optic neuropathy

Pathological injury to the optic nerves or the blood supply to them. Usually, only one eye is affected. Several forms have been described, including ischemic optic neuropathy, which, if prolonged, leads to blindness in the affected eye; optic neuritis due to acute demyelination of optic nerve fibers; infiltrative optic neuropathy, in which the optic nerve is compressed by a tumor or aneurysm; and optic neuropathy due to toxic nutritional factors, e.g., methanol or a combined nutritional and vitamin deficiency.
See also: neuropathy

neuropathy, optic

A non-inflammatory or degenerative disease of the optic nerve. See ophthalmopathy.
References in periodicals archive ?
Nutritional optic neuropathy is a dysfunction of the optic nerve which is important for vision.
"To get this nutrient-deficient to cause optic neuropathy is a bit shocking," she said.
Leber's hereditary optic neuropathy (LHON) is a heritable genetic disease causing profound vision loss and blindness.
The unilateral inflammation in the optic nerve head and peripapillary area coexisting with active juxtapapillary retinitis, the presence of a retinochoroiditis scar in the other eye, the positive Toxoplasma titers, the favorable response to appropriate anti-parasitic agents were highly suggestive for toxoplasmic anterior optic neuropathy.
Ethambutol-induced toxic optic neuropathy (20.69%) was characterized by a bilateral visual loss in the majority, visual field defects, and normal fundus examinations.
The ocular manifestations of anaemia are dry eye, conjunctival haemorrhage, lid haematoma, orbital haemorrhage, retinal haemorrhage, subhyaloid haemorrhage, central retinal vein occlusion, vitreous haemorrhage, optic disc oedema and optic neuropathy.
It defined POAG as a 'chronic and progressive optic neuropathy for which pathologically elevated IOP is an important risk factor.
Leber's hereditary optic neuropathy causes the rapid disintegration of the optic nerve, "like a TV cord that's been chewed on by a mouse," according to the United Mitochondrial Disease Foundation.
The most common cause of Optic Neuropathy is poor blood flow, which is called Ischemic Optic Neuropathy and most often affects elderly people.
Detailed investigation revealed that his optic neuropathy was associated with Toxocara infection confirmed with Western blot technique.
Collaboratively written by Traci Medford-Rosow and Kevin Coughlin, "Unblinded: One Man's Courageous Journey through Darkness to Sight" is the true story of Kevin Coughlin, a resident New Yorker who became blind at age thirty-six due to a rare genetic disorder known as Leber's Hereditary Optic Neuropathy. Twenty years later, without medical intervention, Kevin's sight miraculously started to return.