While the human eye was evolving, what kept humans from being eaten by one-eyed lions over the millions of years the sun was hitting human freckles spaced pefectly between the evolving nose, that eventually became perfect human eyes? You don't read much on the subject, do you? Eyes were around a long time before human beings arose. Maybe your question was meant as hyperbole, but it came off sounding at best uneducated and at worst willfully ignorant.