Only 2 percent of the population on earth have naturally born green eyes

Only 2 percent of the population on earth have naturally born green eyes.

Green eyes have always captivated and intrigued people, holding a certain allure that sets them apart from other eye colors. They are considered rare and coveted, with only a small portion of the global population blessed with this unique trait. Studies estimate that only 2 percent of people worldwide have naturally born green eyes^{1^}. So, what makes green eyes so special, and why are they so uncommon?

To understand the rarity of green eyes, we must first comprehend the factors contributing to eye color. Eye color is determined by the amount and distribution of melanin, a pigment responsible for the coloration of our skin, hair, and eyes. Melanin comes in two main forms: eumelanin, which produces brown and black colors, and pheomelanin, which yields red and yellow tones^{1^}. The combination and concentration of these pigments give rise to the various eye colors we see.

The prevalence of green eyes is mainly influenced by genetics and the amount of melanin in the iris. It is believed that green eye color is a result of low melanin levels combined with light scattering and Rayleigh scattering^{1^}. This scattering effect alters the way light rays reflect off the eye, creating the distinctive green appearance. Individuals with green eyes often have a hint of yellow or blue around the pupil^{1^}.

Throughout history, green-eyed individuals have been viewed with fascination and attributed to mystical characteristics. They are often associated with uniqueness, mystery, and a dash of enchantment. This inherent allure of green eyes has permeated literature, art, and cultural perceptions.

As we explore the distribution of eye colors on a global scale, it becomes evident that green eyes are indeed a rare gem. A study conducted by researchers at the Netherlands Institute for Neurosciences analyzed the eye color of over 13,000 people from different parts of the world^{1^}. The study concluded that approximately 2 percent of the global population has green eyes, making it one of the scarcest eye colors worldwide.

It’s important to note that the prevalence of green eyes varies across regions and populations. Some areas show a higher concentration of green-eyed individuals, while others have an even smaller percentage. For instance, Ireland and Scotland have a relatively higher percentage of people with green eyes, with estimates ranging from 10 to 20 percent^{1^}. Meanwhile, countries in Asia, Africa, and South America have significantly lower percentages of green-eyed individuals^{1^}.

The rarity of green eyes is further highlighted when considering the exponential growth of the global population. According to the United Nations, the world population is projected to reach 9.7 billion by 2050^{1^}. When comparing this growth with the mere 2 percent of individuals with green eyes, their distinctiveness becomes more apparent.

In conclusion, green eyes are undeniably a rare and captivating trait. Only 2 percent of the global population is naturally blessed with this unique eye color, making it highly sought after and intriguing. The combination of low melanin levels, light scattering, and genetic factors contribute to the distinctive appearance of green eyes. As the world population continues to expand, the rarity of green eyes becomes even more apparent. So, if you are among the privileged few with naturally born green eyes, embrace their beauty and cherish their uniqueness.

Source:

• Uptown Eye Care