Introduction. Night blindness is one of the early warning signs of a deficiency in Vitamin A. Each year, between 250,000 and 500,000 children lose their sight because they do not consume enough Vitamin A, and half of those will die within twelve months of losing their sight. Also, many pregnant women in developing countries suffer from night blindness as a symptom of Vitamin A deficiency, a problem compounded by mortality during pregnancy and childbirth, as well as difficulties in birth and in performing lactation (Rahi, et al., 1995, p. 332). In addition to night blindness, Vitamin A deficiency can impair ...
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