"Why do brown eyes see better in the sun than blue eyes?"
Erm... Now that's an interesting one to ponder. Personally, I'm a sucker for big brown puppy dog eyes, but I wouldn't have said they see any better than their baby blue counterparts.
Although, if this is a serious question, I'm sure science has a full and logical explanation. In my humble opinion, and putting aside colour, when it comes to some people, mentioning no gender, their eyes only see what they wanna see!