A pigment called melanin is responsible for that color - the same pigment that determines the color of our skin.
Surrounding each pupil, the colored portion of our eyes is called the iris. Just how rare are green eyes? Fewer than one out of every 10 Americans (9%) has them. In addition to being the rarest eye color among Americans, green eyes are the most attractive, according to 66,000 people who voted in our survey. The results are listed below, ordered from most rare to most common. The American Academy of Ophthalmology (AAO) conducted a survey to determine the eye color percentage of people across America. It can be hard to even imagine what you’d look like with a different eye color. The color of our eyes tends to play a big part in our self image and, in some cases, can be a genetic throwback to your family tree. That certainly isn’t the case any longer. Once upon a time, every human in existence had brown eyes. Other colors like gray or hazel are less common. Outside of a few exceptions, nearly everyone has eyes that are brown, blue, green or somewhere in between. Green is the rarest eye color of the more common colors.
