Vitamin A deficiency is one of the most common causes of night blindness. An insufficient amount of vitamin A in the body affects the production of rhodopsin, the necessary pigment for night vision. Night blindness is usually one of the first signs of a vitamin A deficiency.

What is the main cause of night blindness?

Possible Causes

Glaucoma medications that work by constricting the pupil. Cataracts. Retinitis pigmentosa. Vitamin A deficiency, especially in individuals who have undergone intestinal bypass surgery.

What is the main reason of night blindness in India?

Vitamin A deficiency (VAD) and Xerophthalmia: One of the most common causes for night blindness, especially in developing countries like India, is the deficiency of Vitamin A. Malnourishment and an imbalanced diet are at the root of night blindness in little children.