4243 Multiform electrophysiological ocular pictures in alcohol-tobacco amblyopia
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چکیده
منابع مشابه
4243 Multiform electrophysiological ocular pictures in alcohol-tobacco amblyopia
The pattern VEP is frequently abnormal in multiple sclerosis. In this disease the VEP latency is prolonged and the amplitude is reduced. The use of the VEP amplitude in diagnosis is limited because of the large interand intrasubject variability and low signal-to-noise ratio (SNR). Goal of this project is to improve the SNR of VEP’s with alternative averaging procedures, and to investigate wheth...
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INTRODUCTION Tobacco alcohol amblyopia is an outdated term for a rare condition characterized by visual impairment due to tobacco and alcohol abuse usually associated with nutritional deficiencies.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 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 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 ...
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ژورنال
عنوان ژورنال: Vision Research
سال: 1995
ISSN: 0042-6989
DOI: 10.1016/0042-6989(95)90411-5