Vitamin A

Vitamin A are a group of fat-soluble vitamers (the retinoids) required for many physiological functions, mainly vision, reproduction and epithelial maintenance. In the retina, a specific retinoid, 11-cis-retinal, is formed by photoisomerisation within the rods and cones. The retinoids are hematinics.

Related pathology

Pathological manifestations can occur with both excess and deficiency:


Article information

rID: 2275
Section: Pathology
Tag: refs, refs
Synonyms or Alternate Spellings:
  • Vitamin A related abnormality
  • Vitamin A associated abnormalities
  • Vitamin A
  • Retinoid
  • Retinoids

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