What is the effect of Vitamin A deficiency in children?

Vitamin A deficiency in children primarily leads to vision problems, particularly night blindness and an increased risk of xerophthalmia, which is a severe dryness of the eyes. Vitamin A plays a critical role in the formation of rhodopsin, a pigment in the retina that is essential for low-light (scotopic) vision. When there is insufficient Vitamin A, the eyes are unable to adapt well to darkness, making it difficult to see in low-light conditions. Additionally, severe Vitamin A deficiency can lead to damage to the cornea and even total blindness. This impact on vision is significant, especially for children, as proper vision is crucial for their overall development and learning.

While skin rashes, digestive issues, and cognitive function can be influenced by various nutrient deficiencies or health conditions, they are not the primary concerns associated with Vitamin A deficiency.