Abnormal dryness of membranes of the eye due to vitamin A deficiency; symptoms may begin in the form of night blindness, and they become progressively worse

Abnormal dryness and thickening of the surface of the conjunctiva and cornea due to a deficiency of vitamin A, local disease, or dehydration.

Excessive dryness of the cornea and conjunctiva due to a lack of vitamin A.

Abnormal dryness of the eyes.

Xerophthalmia (Greek for dry eyes) 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.