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  • Title: Vitamin A deficiency in patients with a remote history of intestinal surgery.
    Author: Chae T, Foroozan R.
    Journal: Br J Ophthalmol; 2006 Aug; 90(8):955-6. PubMed ID: 16774959.
    Abstract:
    BACKGROUND/AIMS: Vitamin A deficiency, often presenting with nyctalopia, has been described in a number of patients with malabsorption as a result of intestinal bypass surgery and, more recently, bariatric surgery. In these reports vitamin A deficiency developed within several years of gastric or intestinal surgery. Three patients who developed decreased vision from vitamin A deficiency more than 18 years after their intestinal surgery are reported. METHODS: A retrospective review of the clinical findings of all patients diagnosed with vitamin A deficiency, as confirmed by serological testing, over the past year in a single neuro-ophthalmic practice. RESULTS: Four patients with vitamin A deficiency were seen, three of whom had intestinal surgery more than 18 years before the development of visual symptoms. CONCLUSION: The authors suggest that vitamin A deficiency should be suspected in patients with unexplained decreased vision and a history of intestinal surgery, regardless of the timing of the surgical procedure.
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