The cool thing is that when the pupil changes size, the pigments in the iris compress or spread apart. This changes the eye color to a degree. The pupil can change size with certain emotions, thus changing the iris color dispersion and the eye color.
Apparently it's a case of blood pressure and flow, which alters the colour, not dissimilar to when embarrassment or anger makes your face go red. In embarrassed or excited situation, your blood goes faster through the veins. And then when you calm down, the blood then goes slower.
The most likely explanation for a change in eye color is to change the amount of pigment producing proteins made. There are lots of cases where something in the environment changes the amount of protein that is made. The color of a person's clothing can “bring out” their eyes, making them appear a different color.
When we cry, the eyes get more watery and reflective, so they seem blue or green because our surroundings tend to have lots of blue and green colors. Also when the eyes experience change in light or mood our pupils dilate. causing the eyes to change color based on how compact is the melanin in the eyes.
When you are happy, angry, or sad, your body releases a hormone that makes your pupil size change. When you're happy or angry, your eyes usually become more vibrant, while when you cry, your eyes obtain a reddish color, making your eyes appear brighter.
The pupil can change size with certain emotions, thus changing the iris color dispersion and the eye color. You've probably heard people say your eyes change color when you're angry, and that probably is true. Your eyes can also change color with age. They usually darken somewhat.
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.
While crying often may temporarily cause your eyes to swell, get red, or develop under-eye circles, the results can be diminished with helpful products and ingredients.
Hazel eyes mostly consist of shades of brown and green. Much like gray eyes, hazel eyes may appear to “change color” from green to light brown to gold.
But today there's a medical procedure that can permanently turn your brown eyes blue. Pioneered by Stroma Medical, the laser procedure works by eliminating the brown melanin that's present in the anterior layers of the iris.
Natural changes with age
Most babies are born with brown eyes. However, many of Caucasian heritage initially have blue or gray eyes. This color may darken over time, to become green, hazel, or brown. Infants with brown eyes rarely experience changes in iris color, although the shade of brown may become more prominent.
We found that green is the most popular lens colour, with brown coming in a close second, despite it being one of the most common eye colours. Although blue and hazel are seen as the most attractive eye colours for men and women they are surprisingly the least popular.
A blend of brown and green, hazel eyes represent 18% of the American population. Most of the bronze color tends to settle near the outer edge of the iris, while tiny streaks of brown, green and even gold are seen closer to the pupil. But like green eyes, hazel eyes tend to be much rarer elsewhere in the world.
In most people, the answer is no. Eye color fully matures in infancy and remains the same for life.
There are plenty of blue-eyed Asians. This probably happens when the traditional blue-eyed allele comes into a family from a (possibly very distant) European ancestor. Blue eyes then resurface in a child generations later if they inherit the allele from both parents.
What ethnicity has hazel eyes? Anyone can be born with hazel eyes, but it's most common in people of Brazilian, Middle Eastern, North African, or Spanish descent.
Genetics and Eye Color
You inherit one from the mother and one from the father. If the two alleles of a specific gene are different (heterozygous), the trait that is dominant is expressed (shown). The trait that is hidden is called recessive. Brown eye color is a dominant trait and blue eye color is a recessive trait.
Crying is a normal behavior caused by a variety of reasons that include emotional, physical and chemical responses from your body. But it's possible you can cry too much or not cry enough. Either can cause damage to your eyes if left untreated. Some conditions that aren't considered normal may include the following.
Tears also promote eye health, contributing to keeping dry eye disease at bay, and flushing out potential infection risks. To summarise, the 5 reasons are: Washes out infection and debris. Hydrates the eyes.
Crying apparently burns as much as laughing does, at about a rate of 1.3 calories a minute.
Natural Age-Related Eye Color Changes
As they are exposed to light, melanin production increases, causing the color of their eyes to shift. However, eye color changes can also occur as a person ages. Those with lighter color eyes – especially Caucasians – may see their eyes lighten over time.
Eye Color Matters
Lighter-colored eyes have less pigment to protect against sun damage and UV radiation compared to darker-colored eyes. This means that people with green, hazel, or blue eyes are more sensitive to light and more susceptible to UV damage.
The myth stops here
And while we have the least amount when we enter the world for the first time, remember that babies may be born with eyes of blue, brown, hazel, green, or some other color. It's simply a myth that all of us — or most of us, for that matter — are blue-eyed at birth.