Wow. That's cool. I was once told by an iridologist that my eyes were really blue and not green and the reason was because I was so congested that yellow had appeared around my pupils, creating the appearnce of green eyes. I took it with a grain of salt at the time, I figured it was all a hustle to get me to buy her expensive herbs.
Now I'll have to keep an eye on my eyes! Thanks for the info!