Natural Eye Color
Each person has a different color and set of eyes to the next, no two sets of eyes are the same! As with skin color tones like light, dark or medium-colored, there are variations in natural eye colors.
The amount of the pigment melanin defines the color of the iris. The more the amount of melanin, the darker the eye, skin and hair color. If the amount of the pigment melanin is less, then the iris or eye color will be of a lighter shade like blue or gray eyes. If the amount of pigment is high, then the eye color will be dark like black eyes or brown eyes.
The darker our eyes then the less sensitive to the sun they are, compared to light colored eyes and need less eye care generally.
Natural Eye Colors
Blue: Blue is a common eye color among people born in countries like in North West Europe like the countries of Scandinavia. In places like Africa or Asia then blue eyes are very rare. As the production of melanin pigment generally increases during the first few years of life, blue eyes in some babies might darken with age.
Brown: This is one of the most common eye colors seen in people. It occurs due to large amounts of melanin within the iris stroma. People with dark brown eye color can give the appearance of having black colored eyes.
Hazel: Hazel colored eyes are also quite common, and are a result of a combination of Rayleigh scattering, and a modest amount of melanin in the front border of the iris. Hazel eye color has been observed as medium color between light brown and dark green.
Gray: Gray is considered to be a darker shade of blue. This eye color, means low melanin in the iris. Gray eyes have also been observed with small amounts of yellow and brown color in the iris. People belonging to countries like Russia, Baltic States and Finland, often, have gray eyes.
Rare Natural Eye Colors
Violet: Violet or purple eyes are mostly seen in albinos. The eyes of some albinos seem to be violet, due to the mixing of red and blue reflections. These shade of eyes are a form of blue eyes or due to a mutation.
Red: Red is probably the rarest eye color observed among human beings, again it can be seen in albino humans.
Green: Green is a very rare eye color, and very few percentage of people in the world are born with it. This occurs due to the moderate production of melanin.
Amber: Amber colored eyes have a strong golden and coppery tint. Amber eyes occur due to the deposition of lipochrome, which is the yellow pigment in the iris. It is a very rare eye color, and is also known as ‘wolf eyes’, because amber eyes are common in wolves.
Black: Black is a rare eye color, people who have high amount of melanin pigment have black eyes. In fact, people with very dark brown eyes give the appearance of black colored eyes.
These were the various natural eye colors. Many people will have two different colored eyes, for example one eye will be brown and other light green. This ocular condition is known as heterochromia. However, it is possible to change natural eye color, or correct such ocular condition or get rid of congenital defects of iris. This is done by intra-ocular implant which improves the appearance of the eye color.