Those with blue eyes have always been seen as beautiful because of its rarity. However, science says all eyes are actually brown. Blue-eyed gems should not worry though as they are still special.
The color seen in our eyes are caused by a pigment that is called melanin which is found in the iris of our eyes, says Dr. Gary Heiting, a licensed optometrist and senior editor of All About Vision. They are called melanocytes or miniature melanin cells which determine a person’s eye color. Melanin is also found in our skin and hair and apparently, there is only one “shade” for it which is brown.
How Can Blue Eyes Be Brown?
What makes people have other colors like blue, hazel, turquoise, green and whatnot is the combination of light and a number of melanocytes in your iris. Since melanin absorbs light, if you have more melanin, lesser light will be absorbed which is the case for brown-eyed people.
Meanwhile, blue-eyed people have lesser melanin which means it cannot absorb much light. Light is then is reflected back out from the eye. This process is called “Tyndall scattering” as light reflects back in shorter wavelengths. It also coincides with the blue end of the light color spectrum.
Green-eyed people goes the same way while they fall in the middle – neither too much melanin nor too little. That also explains why people with green eyes, like Harry Styles, is often told their eyes changes color since they are more responsive to light in the environment.
Babies Change Eye Color
Moreover, melanin is also the reason why babies appear to have blue or lighter-colored eyes from birth. But as they grow up, the eyes of some of these babies turn darker. Heiting says it is because a baby is still developing melanin. As they grow older, they will accumulate “more melanin in the iris.”
Now, each one of us can finally relate to Destiny’s Child and Van Morrison’s songs for people with brown eyes. But those with blue eyes are still very special as Tyndall scattering resembles the way light scatters around the sky, and they have their own little pieces of the sky in their eyes.
Photo source: Wikimedia Commons