Which vitamin deficiency causes night blindness and xerophthalmia

date：2026-03-23 17:08:46 author：admin browse： time View comments Add Collection

Which vitamin deficiency causes night blindness and xerophthalmia

Which vitamin deficiency causes night blindness and xerophthalmia?

A. Vitamin A

B. Vitamin B12

C. Vitamin C

D. Vitamin D

Answer: A

Explanation: Vitamin A deficiency impairs retinal function, causing night blindness and xerophthalmia (dry eyes).