I think you're delving into semantics. Christians define God as Love as in "God is Love". Does love exist?
These questions wouldn't exist without humans. Right?
For those interested: This was published 2 months ago http://adsabs.harvard.edu/abs/2010PhRvL.104o8102L
It seems the human eye wasn't an 'evolutionary flaw' after all as some proclaimed. Quote: "The retina is revealed as an optimal structure designed for improving the sharpness of images."
Basically: The blood vessels can act as wave guides for the incoming light. Cool!
Ultimately, there is no Truth, just levels of certainty
Never tell people how to do things. Tell them WHAT to do and they will surprise you with their ingenuity. -- Gen. George S. Patton, Jr.