disorders of nutrition
Vitamin A Deficiency
Symptoms ofVitamin ADeficiency
 deficiency is night blindness, which is caused by a disorder of the Overview of Retinal Disorders . Soon thereafter, the whites (conjunctiva) and corneas of the eyes may become dry and thick—a condition called The skin becomes dry and scaly, and the lining of the lungs, intestine, and urinary tract thicken and stiffen. The Overview of the Immune System does not function normally, making infections more likely, particularly in infants and children. Children’s growth and development may be slowed. More than half of children with severevitamin Adeficiency may die. 