I've never heard of this color - preference thinger before, this thread inspired me to do a very, very quick search on the subject. Also, I'm very bored at work. Didn't find much, other than this:
http://en.wikipedia.org/wiki/Photopsin
Seems to me that it's possible that different people can have different levels of these proteins in their retinas, causing them to "see" certain colors better than others. If that's what this is all about, then I'm willing to bet that it's possible to have different qualities of night-vision from eye to eye, as well, if each eye has different levels of the "visual-purple" pigment.
True? False? Waste of time? Anyone know an optometrist?
Anyone know the name for this? A search for "eye color - preference thinger" turned up squat for me. Wonder why. :P