"Scientists at University College Dublin, Ireland, have
identified a genetic alteration which causes a child to be born with no
eyes – a condition called anophthalmia," according to a Health Canal post. "According to the findings published in the current issue (December 2011) of Human Mutation, a child’s eyes will not develop fully in the womb if the child has alterations in both copies of its STRA6 gene which is responsible for transporting vitamin A into the cells." Read more.