Abstract
A 42-year-old man who developed severe night blindness 15 years following jejunoileal bypass surgery for morbid obesity is described. Ophthamological testing, including dark adaptation, electroretinography and serum vitamin A levels, confirmed a diagnosis of vitamin A deficiency. Oral vitamin A 25,000 iu/day for two months resulted in a full recovery of visual deficits. Nutritional vitamin A deficiency is discussed in the context of intestinal bypass surgery.
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