Q:

The MOST characteristic lesion of vitamin A deficiency is

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The MOST characteristic lesion of vitamin A deficiency is


  1. xerophthalmia
  2. corneal ulcers
  3. Bitot spots
  4. keratomalacia
  5. keratoconus

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(A). In early vitamin A deficiency, the cornea keratinizes, becomes opaque, is susceptible to infection, and forms dry, scaly layers of cells (xerophthalmia)

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