: Xerophthalmia is an eye disease caused by a deficiency of vitamin A. Prolonged vitamin A deficiency can damage the cornea of the eye and cause a dry layer on the cornea. As a result, the eyes become dry and the eyelids become swollen. In this condition the eyes cannot tolerate light. At this time the cornea may be injured due to bacterial attack in the eye Early eye treatment can be the solution to this problem. But if the treatment is delayed, the eyes may become blind.