Think back to when you were very young and someone first explained blindness to you. If you were me, it was a menopausal primary school teacher telling you to stand up and close your eyes. “That is what it is to be blind,” she said, fanning herself. “Your eyes don’t work, so you can’t see anything. I want you to think about how much harder your life would be if you were blind.”
Wow! Indeed, we all thought and, deciding we would much rather see than not, popped our eyes back open.