<unk>  optic neuropathy There are several causes of<unk>  optic neuropathy. Among these are: ingestion of methanol (wood alcohol), ethylene glycol (automotive antifreeze), disulfiram (used to treat chronic alcoholism), halogenated hydroquinolones (amebicidal medications), ethambutol and isoniazid (tuberculosis treatment), and antibiotics such as linezolid and chloramphenicol as well as chloroquine and the related hydroxychloroquine (for lupus and rheumatoid arthritis) where it is known as chloroquine retinopathy. Tobacco is also a major cause of<unk>  optic neuropathy.<unk>  optic neuropathy The predominant cause of<unk>  optic neuropathy is thought to be deficiency of B-complex vitamins, particularly thiamine (vitamin B1), cyanocobalamin (vitamin B12) and recently copper. Deficiency of pyridoxine (vitamin B6), niacin (vitamin B3), riboflavin (vitamin B2), and/or folic acid also seems to play a role. Those individuals who consume excessive amounts of alcohol and use tobacco are at greater risk because they tend to be malnourished. Those with pernicious anemia are also at risk due to an impaired ability to absorb vitamin B12 from the intestinal tract.
Toxic and nutritional optic neuropathy
Chronic relapsing inflammatory optic neuropathy
Autoimmune optic neuropathy
Arteritic anterior ischemic optic neuropathy
Ischemic optic neuropathy
Posterior ischemic optic neuropathy
Kjer's optic neuropathy
Late congenital syphilitic oculopathy