منابع مشابه
Vitamin BI 2 absorption in tobacco amblyopia
It is well established that a proportion of patients with tobacco amblyopia have pernicious anaemia or some other demonstrable defect of vitamin B12 metabolism (Leishman, 195I; Heaton, McCormick, and Freeman, I958; Freeman and Heaton, I96I; Foulds, Chisholm, Bronte-Stewart, and Wilson, I968). We have examined 65 cases of tobacco amblyopia diagnosed according to the criteria of Heaton and others...
متن کاملTobacco-alcohol amblyopia: a diagnostic dilemma.
INTRODUCTION Tobacco alcohol amblyopia is an outdated term for a rare condition characterized by visual impairment due to tobacco and alcohol abuse usually associated with nutritional deficiencies. The more accurate term used now is Nutritional Optic Neuropathy. The visual impairment generally presents as a centrocecal scotoma. Its pathophysiology is poorly understood but it is generally attrib...
متن کاملVitamin B 12 absorption in tobacco amblyopia.
It is well established that a proportion of patients with tobacco amblyopia have pernicious anaemia or some other demonstrable defect of vitamin B12 metabolism (Leishman, 195I; Heaton, McCormick, and Freeman, I958; Freeman and Heaton, I96I; Foulds, Chisholm, Bronte-Stewart, and Wilson, I968). We have examined 65 cases of tobacco amblyopia diagnosed according to the criteria of Heaton and others...
متن کاملAbsorption of vitamin B12 in tobacco amblyopia.
In view of the evidence that some abnormality of the metabolism of vitamin B12 is present in tobacco amblyopia (Callender and Denborough, I957; Heaton, McCormick, and Freeman, I958; Chisholm, Bronte-Stewart, and Foulds, I967), it was thought possible that absorption of the vitamin might be reduced in patients with the disease. The patients studied were male pipe smokers with bilateral acquired ...
متن کاملThe Treatment of Tobacco Amblyopia by Acetyl-Choline
suffering from tobacco amblyopia have been treated at the Bristol Eye Hospital by the intramuscular ejection of " pragmoline," acetyl-choline bromide. This drug is available in two doses, dose A being 0'03 grammes, and dose B 0-125 grammes. Each patient first received two injections of dose A ^vith one clear day's interval between, and then a daily injection of dose B until no further treatment...
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ژورنال
عنوان ژورنال: The Lancet
سال: 1888
ISSN: 0140-6736
DOI: 10.1016/s0140-6736(02)26731-8