Brown eyes are the most common: Over half the people in the world have them, according to the AAO. In fact, about 10,000 years ago, all humans had brown eyes.
What is the rarest eye color? Green is the rarest eye color in the world, with only 2% of the world's population (and fewer than one out of ten Americans) sporting green peepers, according to the American Academy of Ophthalmology (AAO).
Australians of European ancestry have about 25 percent brown eyes while those of non-European descent almost all have brown eyes.
Of those four, green is the rarest. It shows up in about 9% of Americans but only 2% of the world's population. Hazel/amber is the next rarest of these. Blue is the second most common and brown tops the list with 45% of the U.S. population and possibly almost 80% worldwide.
Brown eyes are more resistant to problems because they have more melanin. It also helps to repair DNA damage and to keep the eyes moist. People with brown eyes are also less likely to develop certain types of eye diseases, such as age-related macular degeneration.
When broken down by gender, men ranked gray, blue, and green eyes as the most attractive, while women said they were most attracted to green, hazel, and gray eyes. Despite brown eyes ranking at the bottom of our perceived attraction scale, approximately 79% of the world's population sports melanin-rich brown eyes.
Green is considered by some to be the actual rarest eye color in the world, though others would say it's been dethroned by red, violet, and grey eyes.
People with brown eyes have a lower incidence of macular degeneration and diabetic retinopathy. Age-related macular degeneration (AMD) is an age-related condition in which a part of your retina, the macula, is damaged.
Fact: Two blue-eyed parents can have a child with brown eyes, although it's very rare. Likewise, two brown-eyed parents can have a child with blue eyes, although this is also uncommon.
The Australian Shepherd is one of a few dog breeds that commonly have two different colored eyes, called heterochromia. Aussies might have any combination of brown, blue, hazel, amber, or green eyes. Some Aussies even display more than one color within the same eye.
While more research is needed, darker irises are linked to a number of health benefits, including these: Reduced risk of macular degeneration.
As a side note, while there is a wide variability in eye color, colors other than brown only exist among individuals of European descent. African and Asian populations are typically brown-eyed.
One thing these survey results have in common is that light-colored eyes — green, gray, blue, and hazel — are named as the most attractive eye colors in the world. In one large survey of more than 66,000 people, green was chosen as the most attractive eye color. Green is also among the rarest eye colors.
The world of eye color rareness is a fascinating one, with green, amber, gray, hazel, and violet or red eyes being the rarest of them all. These unique colors are a result of a complex interplay between genetic factors and the presence of pigments like melanin or lipochrome in the iris.
In as much as 15 percent of the white population (or people who tend to have lighter eye colors), eye color changes with age. People who had deep brown eyes during their youth and adulthood may experience a lightening of their eye pigment as they enter middle age, giving them hazel eyes.
Eye color doesn't significantly affect the sharpness of your vision, but it can affect visual comfort in certain situations.
Ultimately, from these studies you can conclude that there is no significant difference between the eye's ability to see or affect reaction time. The only conclusive difference between blue eyes and brown eyes is that blue eyes are more sensitive to light since their isn't much pigment to absorb the light rays.
Even though light eyes are more sensitive to sunlight than dark eyes, everyone benefits from wearing high-quality sunglasses. While brown eyes contain more protective melanin pigment, they are still susceptible to eye sunburn and long-term damage.
Purple eyes are also commonly referred to as “violet eyes,” as they are typically a light shade. For most people, this striking eye color can only be achieved with the help of colored contacts. But the fact is that a small (albeit very small) percentage of people are indeed born with purple eyes.
Your iris (the colored part of your eye) may change through a virus or disease process, leading to a slightly different hue to your eyes. The color may lighten due to a loss of pigmentation in your iris or atrophy when the muscle in your iris grows thinner. Causes could include: Pigment dispersion syndrome.
Red and violet
Although the deep blue eyes of some people such as Elizabeth Taylor can appear purple or violet at certain times, "true" violet-colored eyes occur only due to albinism. Eyes that appear red or violet under certain conditions due to albinism are less than 1 percent of the world's population.
Folks with brown eyes might be at a higher risk for developing cataracts, which is a clouding of the lens of the eye that can lead to changes in vision as you get older. According to one study, "those with brown eyes were 1.59 to 2.5 times more likely to have cataracts than those with lighter eyes," Dr. Wang says.
That said, the researchers found this wasn't necessarily due to the eye color itself but rather the facial structure accompanying brown-eyed people. These researchers posit that the rounder and softer features of brown-eyed individuals make their faces appear more babylike and, thus, more innocent or trustworthy.
Brown is one of the most common eye colours, with approximately 55 percent of people having it. People with brown eyes are said to be independent, determined and self-confident. Yet, you never fail to remain humble. When people look at you, they get a sense of security and stability – you are known to be trustworthy.