<Li> / ˌzɪərɒfˈθælmiə / (listen) </Li> <Tr> <Th> Specialty </Th> <Td> Endocrinology </Td> </Tr> <P> Xerophthalmia (from Ancient Greek xērós (ξηρός) meaning dry and ophthalmos (οφθαλμός) meaning eye) is a medical condition in which the eye fails to produce tears . It may be caused by vitamin A deficiency, which is sometimes used to describe that condition, although there may be other causes . </P> <P> Xerophthalmia caused by a severe vitamin A deficiency is described by pathologic dryness of the conjunctiva and cornea . The conjunctiva becomes dry, thick and wrinkled . If untreated, it can lead to corneal ulceration and ultimately to blindness as a result of corneal damage . </P>

Xerophthalmia in human beings is caused due to deficiency of vitamin