I disagree, that biological eyes and ccd cameras work the same in this regard. I think the opposite is the case, if you want to get Photo/Eye realistic, you should make up your mind about which one of the two you want to have. For example I have never observed those beautiful lens flares you get from multi lens cameras with my single lens eyes.
Photo realism has the great benefit that you can .. well .. take pictures of it. :-)
In case you are interested in "eye realism" take a look at this paper. They try to model what is actually going on in biological eyes. And the results actually look the way the world looks to me when I'm drunk, so they can't be that far off ^^