A transgenic food crop, which may help in solving the problem of night blindness in developing countries is
Vitamin-A deficiency causes night blindness among children. Vitamin-A deficiency often occurs where rice is the staple food since rice grains do not contain β-carotene. Golden rice is a GM crop variety that produces Vitamin A due to the presence of a gene that helps in the making of β-carotene. This supplements β-carotene in the diet of the individuals thereby keeping blindness at bay.