Eye Health and Wellness
Aug 25, · The colored part of the eye is called the iris. The iris has pigmentation that determines the eye color. Irises are classified as being one of six colors: amber, blue, brown, gray, green, hazel, or red. Often confused with hazel eyes, amber eyes tend to be a solid golden or copper color without flecks of blue or green typical of hazel eyes. The color of your eyes depends on how much of the pigment melanin you have in your iris—the colored part of your eyes. The more pigment you have, the darker your eyes will be. Blue, grey, and green eyes are lighter because they have less melanin in the iris. Most people in the world will end up with brown eyes.
Heterochromia is the term used to describe when someone has more than one eye color. In many cases, this means each eye is a different color — for example, one eye is brown and the other eye is green — but it can also mean there are at least two distinct colors in different parts of one eye or both eyes. Heterochromia is a rare condition that affects the iristhe colored part of the eye.
A pigment within the iris called melanin gives eyes their distinct color. Either name can be used to describe the condition mentioned above: eye-related heterochromia. Different forms of heterochromia can affect skin and hair, so attaching iridum or iridis clarifies that only the eyes are affected. A genetic mutation is believed to cause almost all congenital forms of heterochromia. Of the common eye colorsbrown eyes what is this life so full of care the most melanin and blue eyes have the least.
Animals can have heterochromiatoo. Along with other domestic animals, these dogs experience the same genetic phenomenon as humans. Heterochromia is usually harmless when present from birth or early development congenital heterochromiabut it can also point to an underlying condition such as Waardenburg syndrome.
Less commonly, different eye colors and what they mean can occur later in life due to disease, injury or the use of certain medications. This is called acquired heterochromia. There are three main types of heterochromiaeach with its own unique visual traits:. Central heterochromia: Multicolored eyes that start with one color near the pupilthen shift to a different color toward the edge of the iris.
It usually affects both eyes. Also called partial heterochromiait represents the type with the most variety. The secondary color can look different eye colors and what they mean a thin slice of color in one eye and take up two-thirds of the iris in another eye. It can occur in one or both eyes. A condition called anisocoria can easily be confused with heterochromia, as is often the case with David Bowie.
It gives the appearance of two different eye colors, but the variation only relates to pupil size — which can cause one eye to look darker than the other — not the actual eye color. Check out our Heterochromia FAQs. Schedule an exam Find Eye Doctor.
Ocular migraines and visual migraines: What's the difference?
What Determines the Color of Your Eyes?
Mar 04, · Heterochromia is the term used to describe when someone has more than one eye color. In many cases, this means each eye is a different color — for example, one eye is brown and the other eye is green — but it can also mean there are at least two distinct colors in different parts of one eye or both eyes. Sep 11, · Eyes do not lie. They are the windows to the soul as they always tell the truth. One aspect of eyes that makes them make us so easy to read is the eye color. Eye color is a genetic trait that is also determined by the amount of melanin in the eyes. The iris of the eye determines the eye color by deciding how much light to pass through it. Sep 12, · Heterochromia is the term used to describe a difference in a person’s eye color. Someone with central heterochromia has different colors within the same eye. Author: Jayne Leonard.
My name is Tatiana, but my friends and family call me Tutta. I love writing articles about what makes each of us unique and rare. Close up of a hazel eye, which are more rare than you might think. The eyes certainly are windows to the soul, and if you know anything about eyes or windows, you know they come in many different tints and colors!
Mostly you see brown or blue eyes when you look at the people around you, but some people wind up with really cool and rare eye colors. Here are some of the rarest eye colors and how they happen.
Many people will argue that the color of your eyes is purely genetic which, for the most part, is true. What we do know about eye color determination is that it involves two pigments: melanin brown pigment , and lipochrome yellow pigment. It also depends on how the iris scatters light. Light blue eyes indicate an absence of melanin or brown pigmentation.
Conversely, when you see someone with dark brown eyes, they have an abundance of melanin. Melanin concentrated in the outer portion of the iris causing a multicolored appearance that usually ranges from copper to green depending on the light. This list is from the rarest to the more common, and if your eye color is listed, consider yourself a gem.
While it may seem like only a few people have rare eye colors, the truth is that everyone's eye colors are unique to them, just like fingerprints. No two people share the same shape or color of eyes. So even if you have brown eyes, your eye color is unique!
Heterochromia and anisocoria are sometimes mistaken for each other. Most people think David Bowie had two different eye colors, when in fact, he had anisocoria. This photo shows partial heterochromia when one part of an iris is a different color. Heterochromia is a rare eye condition where a person's irises are different colors.
There are three types of heterochromia:. Central heterochromia causes melanin to be concentrated around the pupil. Anisocoria is when one pupil is larger than the other pupil. This can make someone look like they have two different eye colors when they do not. Anisocoria can be present at birth, and there is usually only a few millimeters of difference between the two pupils.
It can also be a result of nerve palsy or a traumatic eye injury. This can cause a much more significant difference in pupil size, making the eye with the dilated pupil look much darker than the other eye.
This is an example of anisocoria in green eyes! Talk about rare! Two major conditions cause a red or pinkish eye color: albinism and blood leaking into the iris. Although albinos usually have very, very light blue eyes due to a lack of pigment, some forms of albinism can cause eyes to appear red or pink.
Albino eyes look can look red or pink due to the lack of pigment in the iris. Oh, what a purplish blue! This eye color is most often found in people with albinism. It is said that you cannot truly have violet eyes without albinism. Mix a lack of pigment with the red from light reflecting off of blood vessels in the eyes, and you get a beautiful violet! Grey eyes can sometimes be mistaken for light blue eyes. It is thought that what makes these eyes appear grey rather than blue has to do with the amount of collagen present in the stroma.
This interferes with the Rayleigh scattering, causing the light to reflect the color grey rather than blue. Grey eyes have more collagen in the stroma than blue eyes, which changes the way light scatters and reflects color. Very little melanin, a burst of lipochrome, and the Rayleigh scattering of light that reflects off the yellow stroma can make for a variety of shades of green.
Talk about a rarity! Next time you see someone rocking natural greens, let them in on this cool fact. This beautiful, golden eye color is often confused with hazel. The difference is that hazel eyes have brown and green in them, while amber eyes are a solid, uniform dark orangey color.
With a little melanin and a whole lot of lipochrome, eyes of this shade almost appear to be glowing! Samb [CC0], via Wikimedia Commons. You probably know someone with hazel eyes. Hazel eyes have a concentration of melanin on the outside of the iris, giving the eye a multicolored appearance. Some people think that black eyes are one of the rarest eye colors. Have you ever seen someone with eyes that seem black as night? Although they appear black, they are really just a very, very dark brown, which is caused by an abundance of melanin.
You may only be able to determine the pupil from the iris when looking at the eye with a bright light! Truly black eyes do not exist, but there are brown eyes so dark that it is hard to distinguish between the pupil and the iris in regular light. Although we don't know for sure which eye color is the rarest, we do know that brown eyes are the most common.
Light brown eyes are commonly seen in West Asia, Europe, and the Americas, while dark brown eyes are most common in Africa and East and Southeast Asia. It is believed that the human race started out having brown eyes , and due to genetic mutations, other colors came about. Perhaps this is why brown is the most common but no less beautiful! Many people who have perfect vision choose to wear contacts just to have a rare eye color.
So if you already flaunt one of these colors naturally, consider yourself lucky! Originally, we all had brown eyes. But a genetic mutation affecting the OCA2 gene in our chromosomes resulted in the creation of a 'switch,' which literally 'turned off' the ability to produce brown eyes.
By Jonathan Trobe, M. D, [CC BY 3. If you have any of these symptoms , check with your doctor as soon as possible. There are ways to make your brown eyes blue.
A controversial laser surgery can remove the melanin in your eye, resulting in a clearer stroma that allows Rayleigh scattering, so your eyes look blue.
Some doctors use silicone implants to permanently change eye color. Either way, there are significant risks involved. As with most surgeries, there are risks with this permanent change. One risk is the melanin can potentially cause blockages to the fluid draining from the eye, causing excess pressure or glaucoma. A silicone implant can also create a blockage and increased pressure in the eye, causing inflammation and damage to the eye's structures. Patients have been rendered wholly or partially blind as a result of these surgeries.
Doctors have reported that many people who want to change their eye color had a friend or sibling who was constantly complimented on their light eye color. In those cases, doctors suggest confronting those feelings through therapy rather than undergoing risky surgery.
If you want to change your eye color, your best and safest bet is to be fitted for color contacts by a licensed ophthalmologist. Im a ginger with blue eyes. But I have Partial Heterochromia! But only my left eye is partially brown. My eyes change with my hair. I have central Heterochromia. Blue eyes with a green ring around the pupil. If I wear green people think I have green eyes.
If I wear other colors most think I have blue eyes. I have heterochromia I was born with bright blue eyes but now their hazel in the middle, a small green ring and then a blue outer ring.
My wife has grey eyes. Truly beautiful eyes. The exact color shifts with what she's wearing. If she wants blue eyes, she wears a blue blouse etc. Fascinating to watch to watch her eyes change as she goes from a purple robe grey violet to a green shirt green gray. Makeup also will shift her eye color. My eye consists of three colours: around the pupil they are amber, and around that most of my eye they are a dark green.
And lining all of that is a thin area of brown. Is that common? I have central heterochromnia but my parents will not believe me! The ring around my pupil is amber and the rest of my eye is dark green. Anybody else in the heterochromnia club?! I can't tell if I have hazel eyes or amber eyes. I went through every comment and I only found a small handful with my eye color the blue-gray part at least.