Cathy Pryor
The realisation that my son Lucien saw the world in a different light came slowly, but there were small clues along the way.
Once, when asked to describe the colour of a banana, he answered white, not yellow. (When you think about it, he could well be right: while the skin is yellow, the flesh is much paler than that.)
And then there was the endearing way he followed the squares on a rug when he was learning to walk.