Question

Deficiency diseases causing blindness

Answer 1

Causes. In addition to dietary problems, other causes of VAD are known. ... Other causes of vitamin A deficiency are inadequate intake, fat malabsorption, or liver disorders.Deficiency impairs immunity and hematopoiesis and causesrashes and typical ocular effects (e.g., xerophthalmia, nightblindness).

Answer 2

1.Vitamin A deficiency (V A D) is the leading cause of preventable blindness in children and increases the risk of disease and death from severe infections. In pregnant women V A D causes night blindness and may increase the risk of maternal mortality.