Q. Deficiency of Vitamin A causes
Solution:
- Vitamin A deficiency (VAD) or hypovitaminosis A is a lack of vitamin A in blood and tissues
- Nyctalopia (night blindness) is one of the first signs of VAD.
- Xerophthalmia, keratomalacia, and completeblindness can also occur since vitamin A has a major role in phototransduction.
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