Even a blind man's eye prove an intelligent Creator.
Let us now turn our thoughts to the instrument of sight.

The optic nerve is the part of the eye which conveys visions to the mind.

Suppose, instead of being where you observe it, at the back part of the eye, it had been brought out to the front, and that reflections from objects had fallen directly upon it.

It is obvious that it would have been exposed to injury from every floating particle of dust, and you would always have felt such a sensation as is caused by a burn or scald when the skin peels off, and leaves the ends of the nerves exposed to the air.

The tender points of the fibers of the optic nerve, too, would soon become blunted and broken, and the eye, of course, useless.