A toddler was left blind in one eye and "in 24/7 pain" after he fell over and bumped his head while learning to walk at nursery.<br /><br />Levi Lithgow, three, had a minor bump when he was one.<br /><br />It seemed harmless but weeks on his eye became increasingly light sensitive - as the bump had dislodged his lens in his right eye.<br /><br />A year on, the lens was removed but it couldn't be replaced as Levi's eye kept filling with fluid, causing him more and more pain.
