______ occurs when vitamin A deficiency progresses and leads to dryness of the cornea and eye membranes.Multiple choice question.XerophthalmiaMacular degenerationRicketsHyperkeratosis

______ is an early sign of vitamin A deficiency.Multiple choice question.Night blindnessScurvyXerophthalmiaHypercarotenemia

If vitamin A pools become depleted, the process of _______ is impaired.Multiple choice question.cataract formationxerophthalmiafollicular hyperkeratosisdark adaptation

An early symptom of vitamin A deficiency is ________.Multiple Choiceswollen tonguehair lossheadachesnight blindness

Vitamin D deficiency in adults is called _____.Multiple choice question.goiterosteomalaciahemolytic anemiarickets

The leading cause of preventable blindness in children is caused by a deficiency of which vitamin?Multiple choice question.AKDE