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Vitamin A Deficiency

A nutritional condition produced by a deficiency of VITAMIN A in the diet, characterized by NIGHT BLINDNESS and other ocular manifestations such as dryness of the conjunctiva and later of the cornea (XEROPHTHALMIA). Vitamin A deficiency is a very common problem worldwide, particularly in developing countries as a consequence of famine or shortages of vitamin A-rich foods. In the United States it is found among the urban poor, the elderly, alcoholics, and patients with malabsorption. (From Cecil Textbook of Medicine, 19th ed, p1179)

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Tree Number(s): C18.654.521.500.133.628

MeSH Unique ID: D014802

Entry Terms:

  • Deficiency, Vitamin A
  • Deficiencies, Vitamin A
  • Vitamin A Deficiencies

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