Unusual manifestation of vitamin A deficiency presenting with generalized xerosis without night blindness
نویسندگان
چکیده
منابع مشابه
Night blindness and conjunctival xerosis caused by vitamin A deficiency in patients with cystic fibrosis.
Forty three patients with cystic fibrosis, aged 8-44 years (median 16 years), were examined for evidence of vitamin A deficiency. Eight patients had abnormal dark adaptation tests and three had conjunctival xerosis. Serum vitamin A and retinol binding protein concentrations were significantly lower in the affected patients who were also more likely to have abnormal liver function tests. Five pa...
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N ight blindness—the inability to see after dusk or at night—is the most common ocular manifestation of moderate to severe vitamin A deficiency. Poor dark adaptation leading to night blindness occurs when there is decreased production of a vitamin A–dependent photosensitive pigment, rhodopsin, in the retinal receptors responsible for seeing under low levels of illumination (rods). Normally, whe...
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Dear Sir, W e write to present a rare case of night blindness caused by vitamin A deficiency secondary to resected adenocarcinoma of the pancreas. To our knowledge this is the first reported case of this association. A 62 year-old man presented to the eye clinic with a 12mo history of worsening nyctalopia and colour perception. Three and a half years previously, he underwent a Whipple's procedu...
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The present report highlights an unusual presentation of vitamin B12 deficiency--recurrent seizures in a 26-year-old man. His symptoms responded to parenteral vitamin B12 therapy. The relevant literature is reviewed.
متن کاملHistorical and practical uses of assessing night blindness as an indicator for vitamin A deficiency
n The assessment of vitamin A status is critical for the planning, implementation, monitoring and evaluation of vitamin A deficiency prevention and treatment programmes. Determination of night blindness is one of the traditional methods of assessing vitamin A deficiency. A variety of subjective and objective methods have been used, however, reported night blindness, the most common method to as...
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ژورنال
عنوان ژورنال: Clinical Case Reports
سال: 2018
ISSN: 2050-0904
DOI: 10.1002/ccr3.1475