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QUESTION
Q5) Xerophthalmia in children and night blindness in adults is caused by the deficiency of ..[J.K.C.M.E.E. 2000 ]

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Xerophthalmia is a medical condition in which the eye fails to produce tears. It may be caused by vitamin A deficiency. Night blindness, also called nyctalopia, means a person cannot see well at night or in poor light. It may cause by vitamin A deficiency. Answer : (a)