Few eye colours draw as much attention as green. Whether it’s a bright emerald or a soft olive with a hint of brown, green-toned eyes make people look twice. But what makes an eye green? How rare is it? And what should people with lighter eyes know about caring for them?
Green Eyes: The Rare Beauty
True green eyes are rare. Studies commonly estimate that only about 2% of people worldwide have them, making green one of the least common natural eye colours.
Green eyes often show golden or amber flecks around the pupil, which give them depth and a slight shimmer in different light.
Olive Eyes: Green Meets Brown
Olive eyes are a greenish-brown blend. They sit between green and brown, and are sometimes grouped under hazel. Depending on the light, olive eyes can look more green, more golden, or more brown, which is why many people with olive eyes describe their eyes as “changing colour.”
So What Actually Gives Eyes Their Colour?
The colour of your eyes comes from the iris, the coloured ring around the pupil. Three things work together:
- Melanin, the natural pigment in the iris. More melanin gives darker eyes, such as brown. Less melanin gives lighter eyes.
- A small amount of yellowish pigment, which combines with scattered light to produce the green tone.
- The way light scatters in the iris, which affects how blue, green or hazel the eye appears.
There is no actual “green pigment” in the eye. Green is the result of this combination, which is part of why it is so uncommon, and why it can seem to shift with lighting, clothing and surroundings.
Does Eye Colour Affect Your Vision?
Eye colour affects how your eyes look, not how well you see. A person with green eyes does not see better or worse than a person with brown eyes.
There are, however, a few practical points for people with lighter eye colours:
- Light sensitivity: Lighter irises contain less melanin, so some people with green, hazel or blue eyes feel more comfortable in sunglasses, especially in bright conditions.
- UV protection: All eyes need protection from ultraviolet light, regardless of colour. Choose sunglasses with proper UV protection.
- Regular eye examinations: Eye colour doesn’t replace the need for routine eye care. Every eye, of every colour, benefits from a yearly check.
Can Eye Colour Change?
Eye colour is usually set in early childhood and stays stable in adults. Subtle changes in how it appears are normal with lighting, mood, pupil size and clothing colour. However, a noticeable or sudden change in the colour of one or both eyes should never be ignored. It can be a sign of an eye condition or an effect of certain medications and should be checked promptly by an eye care professional.
What About Coloured Contact Lenses?
If you love the look of green or olive eyes and want to try them, coloured contact lenses are an option, but they are medical devices and need a proper fitting. Please don’t buy them from street or unverified sellers. See our earlier post on coloured contact lenses for how to wear them safely.
Whatever shade your eyes are, they deserve the same careful attention: protect them from the sun, keep up with regular eye examinations, and see an eye care professional promptly if you notice any change in how they look or feel.
Every eye is unique. Protect yours. Visit Enny Eye Care for your comprehensive eye examination today.