Deficiency of vitamin (b) A causes keratomalacia. Keratomalacia is a severe condition characterized by the softening and degeneration of the cornea, leading to visual impairment and potentially irreversible blindness. Vitamin A plays a crucial role in maintaining the health of the cornea and promoting vision. Its deficiency can result from inadequate dietary intake, malabsorption disorders, or conditions that increase demand, such as pregnancy. To prevent keratomalacia and other vitamin A deficiency-related conditions, ensuring an adequate intake of foods rich in vitamin A, such as liver, dairy products, eggs, and orange-colored fruits and vegetables, is essential for overall eye health.