These 13 Shocking Facts About Your Eye Color Will Leave You Speechless
Eye colour in humans varies from shades of black, brown, to blues, greens and even red in some extreme cases. A phenotypical trait, the eye colour of an individual depends on the concentration of melanin and the thickness of the stroma (a fibrovascular layer of tissue) in the iris. The stroma causes scattering of light and thus its thickness contributes significantly in the hue of one’s iris. The following are some of the most shocking facts about the human eye colour that will leave you speechless.
1. Brown Is Common
Studies have revealed that brown is the most popular eye colour on the planet. There is a high probability that the person standing next to you in the Subway has brown eyes.
2. What’s Melanin Got To Do With My Eyes?
The colour of one’s iris depends on the concentration of melanin that is a black or brown pigment. So the abundance of the pigment results in brown eyes.
3. The Iris Is Important
Not only is the iris essential for vision in humans, the structure is the pivot in deciding one’s eye color. As we have mentioned earlier it is the concentration of melanin and the thickness of the layer of fibrovascular tissue, known as stroma, that impart color to one’s eyes.
4. Green Eyes Are Beautiful
In popular lore, it is believed that people who have green irises are more open-hearted and live life to the fullest.
5. Melanin Again
An exceptionally high concentration of melanin in the iris can lead to complete black eyes in individuals.
6. Blue Dominates Europe
More than 70% of the population, in northern and eastern parts of the European continent has blue eyes.
The two-eye colored symptom known as Heterochromia is a result of genetic anomalies. The condition, where an individual has two different eye colours, is extremely rare and afflicts approximately six out of every 1000 people.
8. Hazel eyes
Hazel or even blue and green irises are a result of lesser melanin concentration and Tyndall scattering of light occurring in the stroma of the iris.
9. Purple/Violet Eyes
People suffering from albinism, a skin disorder caused by absence of melanin, the eyes are generally blue in colour. But in some rare cases they might appear purple depending on the lighting conditions.
10. The Vampire Eyes
With only one in a million people having red irises, it is quite possible that you never encounter someone in your lifetime. Very low concentration of melanin results in vampire like eyes.
11. Amber Eyes
It is not only the amount of melanin but also the location of the pigment in the iris is responsible for the colour of one’s eyes. A distinctive combination of the two at times leads to Amber irises.
12. The Eye Color Might Change With Time
At birth most babies have lighter irises and it keeps changing colour for up to one year of age.
13. Green & Blue Rock Britain
While close to two-thirds population in parts of Europe have blue eye colour, most people in Ireland and Scotland feature green or blue irises.