Vitamin a deficiency(VAD) Vad is the leading cause of preventable blindness in children and raises the risk of disease and death from severe infections. In pregnant women Vad may increase the risk of maternal mortality VAD is a public health problem in 118 countries especially in africa and south -east asia Vitamin a is used for treatment of vadVitamin A deficiency (VAD) • VAD is the leading cause of preventable blindness in children and raises the risk of disease and death from severe infections. In pregnant women VAD may increase the risk of maternal mortality. • VAD is a public health problem in 118 countries, especially in Africa and South-east Asia. • Vitamin A is used for treatment of VAD