Question

Night blindness is due to the deficiency of 

(A) Vitamin B₁₂ 

(B) Vitamin A 

(C) Vitamin C 

(D) Vitamin E

Answer 1

Correct option is: (B) Vitamin A 

Answer 2

Correct option is (B) Vitamin A 

Night blindness is a nutritional disorder in which person is not able to see at night or in poor light. It is mainly caused due to the deficiency of vitamin A. Vitamin A is retinol that helps in the formation of rhodopsin that helps in vision in low light and hence in the absence of retinol, this pigments will not form and a person will not be able to see in dim light.