Hazel eyes are eyes that have a combination of green, gold, and brown coloring, which sets them apart from most other eyes, which are a solid color. The amount of each color can vary among different people with hazel eyes, which can cause hazel green eyes or hazel brown eyes. How common are hazel eyes? Hazel eyes are fairly rare, and only about 5% of the population has them.  Hazel is not an eye color but rather a condition where several eye colors are present. Now the question is why. This is an area which needs to be explored further. Similar to the high frequencies of red and reddish hair among Rh(D) negative individuals. What is the reason? While usually people … Continue reading Why are hazel eyes so frequent in Rh(D) negative individuals?