Diseases

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)

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

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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Synonyms

3 entry terms
  • Deficiency, Vitamin A
  • Deficiencies, Vitamin A
  • Vitamin A Deficiencies

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Aspects Covered

35 allowable subheadings

Indexed with the subheadings blood, cerebrospinal fluid, chemically induced, classification, complications, congenital, diagnosis, diagnostic imaging, diet therapy, drug therapy, economics, embryology, enzymology, epidemiology, ethnology, etiology, genetics, history, immunology, metabolism, microbiology, mortality, nursing, parasitology, pathology, physiopathology, prevention & control, psychology, radiotherapy, rehabilitation, surgery, therapy, urine, veterinary, virology.

MeSH Hierarchy

Tree Number

  1. C18.654w.521w.500.133w.628w

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NLM Classification

QU 167

AMA Style

References

  1. National Library of Medicine. Vitamin A Deficiency. Medical Subject Headings (MeSH). 2026. Unique ID D014802. http://id.nlm.nih.gov/mesh/2026/D014802
  2. Vitamin A Deficiency. In: Wikipedia. https://en.wikipedia.org/wiki/Vitamin_A_deficiency
  3. Vitamin A Deficiency. In: Wikidata. https://www.wikidata.org/wiki/Q2655893