Xerophthalmia

Xerophthalmia (i/ˌzɪərˌɒfˈθælmiːə/; Greek for dry eyes, from Ξηροφθαλμία = ξηρός, dry + οφθαλμός, eye) is a medical condition in which the eye fails to produce tears. It may be caused by a deficiency in vitamin A and is sometimes used to describe that lack, although there may be other causes.