Question

Night blindness is due to the deficiency of(a) vitamin A
(b) vitamin B(c) vitamin C
(d) vitamin D

Answer 1

Vitamin A is the answer

Answer 2

(a) Vitamin A.

Hypovitaminosis A or Vitamin A deficiency are lack of vitamin A in blood and tissues.

Vitamin A deficiency is common in poorer countries and rarely seen in the more developed countries.

Night blindness or Nyctalopia are first signs of VAD.

The VAD diminish ability to easily fight the infection so the children are not immunized.