"Professor, please explain the evolution of sight and how the eye, optic nerve, and sight center of the brain all conveniently developed at the same time, even though none of them had any use without the other two."
That is a creationist red herring. If you learn about evolution, you will learn why your question doesn't make sense.
From PH's list of links:
http://www.don-lindsay-archive.org/creation/eye.html