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Green eyes: The most beautiful eye colour?

woman with green eyes

If you have green eyes, you have good reason to be happy about it.

Though the colour green often is associated with envy (even a character in Shakespeare's Othello refers to jealousy as "the green-ey'd monster"), many people consider green to be the most attractive eye colour.

In an online survey, AllAboutVision.com asked readers which eye colour they considered most attractive. Here are the preferences, from more than 66,000 responses:

  1. Green: 20.3%

  2. Light blue: 16.9%

  3. Hazel: 16.0%

  4. Dark blue: 15.2%

  5. Gray: 10.9%

  6. Honey: 7.9%

  7. Amethyst: 6.9%

  8. Brown: 5.9%

Part of the appeal of green eyes may be their rarity. Reliable statistics of the distribution of eye colours are difficult to find, but some sources put the worldwide prevalence of green eyes at only 2%.

However, the prevalence of green eyes varies significantly by geographical region and country, with the greatest concentration in Northern and Central Europe.

For example, in Edinburgh, Scotland, it's estimated that 29% of residents have green eyes (57% have blue eyes and only 14% have brown eyes).

In Iceland, a survey of the population revealed 89% of women and 87% of men have blue or green eye colour.

What causes green eyes?

Genetics play a role in determining eye colour, but it's nearly impossible to predict with 100% certainty the eye colour of a child simply by knowing the colour of his or her parents' eyes.

This is because many different genes are involved in the inheritance of eye colour, and different interactions and levels of expression of these genes can alter eye colour outcomes in children.

The structure within the eye that is responsible for eye colour is called the iris — the thin, circular structure that surrounds the pupil. In addition to controlling the size of the pupil and therefore the amount of light that enters the eye, the iris contains pigmented cells that determine eye colour.

But here's where it gets interesting: Though there are many different eye colours, there are surprisingly few types of eye pigments. In fact, nearly all eye colours are determined by how much brown-coloured pigment called melanin is contained in cells in the iris.

So how does a brown-coloured pigment create green eyes — or blue eyes, or hazel eyes, or any eye colour other than brown?

Differences in eye colour are the result of different amounts of melanin pigment granules within cells in the iris called melanocytes. These cells acquire their genetically determined amount of melanin in early childhood, and their melanin content usually remains relatively constant throughout life.

A person with less melanin in the melanocytes of his or her iris will have a lighter eye colour (blue or green, for example) than a person with a greater concentration of melanin, who will likely have brown eyes.

But an additional factor is involved in determining eye colour, especially different shades of green eyes and blue eyes. When light strikes the iris and the pigment-containing melanocytes within the iris, this light is scattered and reflected.

This phenomenon, called Rayleigh scattering, can produce different reflective colours, depending on the physical structure of the iris and the amount of melanocytes and density of melanin within the melanocytes.

Depending on these variables, Rayleigh scattering (which is the same phenomenon that makes a cloudless sky appear blue) can produce different shades of blue, green, hazel and so on.

It's also noteworthy that, depending on the structure of the iris and the distribution of melanocytes within it, some eye colours can be difficult to categorise.

For example, some "green" eyes may have a crown of hazel or brown near the pupil, making them appear hazel at times and green at other times, depending on lighting, makeup and the colour of clothing a person wears.

Celebrities with green eyes

Does the allure of green eyes help entertainers and other famous people get noticed? Maybe.

Here's a short list of actors, singers and other celebrities who might owe a small part of their appeal to their green eyes:

Adele, Adrien Brody, Daniel Day-Lewis, Katie Holmes, Terrence Howard, Kate Hudson, Scarlett Johansson, John Krasinski, Leona Lewis, Lindsay Lohan, Kate Middleton (Catherine, Duchess of Cambridge), Clive Owen, Joaquin Phoenix, Eddie Redmayne, Rihanna, Smokey Robinson, Paul Rudd, Kristen Stewart, Emma Stone, Tilda Swinton, Channing Tatum, Charlize Theron, Bruce Willis.

Enhancing your eye colour

If you really wish you had green eyes instead of the eye colour you were born with, one option is to wear colour contact lenses.

Several brands and shades of green contact lenses are available, including lenses without corrective power if you are lucky enough to have naturally perfect eyesight.

If you have naturally green eyes and you wear glasses, lenses with anti-reflective (AR) coating will help showcase your green eye colour. AR coating eliminates distracting reflections in your glasses, allowing others to see the beauty and expressiveness of your green eyes.

Whatever colour your eyes may be, they are truly unique and can never be replicated. Like snowflakes, the features of each and every eye are different and, therefore, magnificent — no matter what colour your eyes are.

Have routine eye exams

To keep your beautiful green eyes healthy and seeing clearly, have routine eye exams at least every two years.

WHEN WAS YOUR LAST EYE EXAM? Find an optician near you and schedule an appointment.

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