The video discusses the top 10 rarest eye colors in the world. The list includes:
10. Hazelnut: a color between green and brown, with no clear genetic explanation
9. Blue: caused by a genetic mutation, with only 8% of the population having blue eyes
8. Amber: a yellowish-golden color, found in European countries and associated with albinism
7. Green: found in 2% of the population, with females more likely to have green eyes
6. Silver: a rare color caused by a thin layer of melamine in the iris
5. Violet: a rare color associated with albinism and found in people with a lack of melamine
4. Black: an uncommon color, with 1% of the population having black eyes
3. Red: found in albinos, with their white skin highlighting the red eyes
2. Heterochromia: a condition where one eye has different colors, affecting 11 in every 1000 people
1. Central Heterochromia: a rare condition where the iris has different colors, with an interior and exterior ring.
The video also discusses the genetic explanations and associations behind each eye color, as well as some celebrities who have rare eye conditions.
Here are the key facts extracted from the text:
1. The eyes are the first thing people notice about someone.
2. Hazelnut eye color is a rare tone between green and brown.
3. 50% of the population has brown eyes.
4. Blue eyes were caused by a genetic mutation between 6,000 and 10,000 years ago.
5. Only 8% of the population, or 600 million people, have blue eyes.
6. Blue eyes don't have pigmentation and are more sensitive to the sun.
7. Amber eye color is also known as "wolf eyes" due to its similarity to a wolf's iris.
8. The pigment that produces the amber color is also present in green eyes, giving them a yellowish tint.
9. Only 2% of the population has green eyes, and they are more common in females.
10. Green eyes are caused by low levels of melamine and excess lipochrome, which gives a yellowish tone.
11. Silver eyes are a result of a thin layer of melamine in the iris that doesn't allow light to totally get in.
12. The oca2 gene determines the blue color in silver eyes.
13. Violet eyes are an uncommon color, and one legend attributes it to a mysterious light impacting a person's eyes.
14. Violet eyes are common in people with albinism due to a lack of melamine.
15. Elizabeth Taylor had violet eyes.
16. Black eyes are characterized by a dark iris almost impossible to differentiate from the pupil.
17. Approximately 1% of the population has black eyes.
18. Red eyes are rare, and approximately 0.3% of the population has an iris of this color.
19. People with albinism tend to have pink or violet eyes due to the composition of the iris.
20. Red eyes are a result of the lack of melamine and the mixture of red and blue tones.
21. People with albinism tend to suffer from photophobia, squint, myopia, and astigmatism.
22. Heterochromia is a rare condition where one person has eyes of different colors.
23. Only 11 in every 1000 people in the United States suffer from heterochromia.
24. There are two kinds of heterochromia: essential and acquired.
25. Essential heterochromia is present since birth, while acquired heterochromia happens due to an external factor.
26. Heterochromia only affects one eye and doesn't put the person's life in danger.
27. Celebrities with heterochromia include David Bowie, Henry Cavill, and Jane Seymour.
28. Central heterochromia is a kind of heterochromia also known as "cat eyes."