What are the disadvantages of having blue eyes?

Disadvantages of Blue Eyes Typically, people with blue eyes are likely to be more sensitive to light. With less pigment in the layers of the iris, they may be unable to block out the effects of bright fluorescent lights or sunlight. This condition of light sensitivity is called photophobia.

myvision.org - Blue Eyes: Advantages, Disadvantages & More | MyVision.org

What happens if you can't take out a piercing for an MRI?

“But if they don't have medical records and we don't know what's in them, then commonly they cannot have an MRI,” Froelich says. People who have...

Last updated Nov 24, 2022

Is yogurt high in uric acid?

Dairy. Dairy products, such as milk, cheese, and yogurt, are low in purines, and they are a good fit for a diet to manage or prevent gout. Dec 16,...

Last updated Nov 18, 2018

Promotion

Blue eyes are considered rare. Approximately 8 to 10 percent of the world’s population has blue eyes. The color blue is considered a genetic alteration, which may have occurred about 6,000 to 10,000 years ago. Before that point, it was believed that most people had brown eyes. In the United States, blue eyes are becoming less common. In the 1950s, more than half the population had blue eyes. Now, it is estimated that one in six babies has blue eyes.

What Causes Blue Eyes?

The color of the eye is created by the different layers in the iris. Even in blue-eyed individuals, the back layer has brown pigment, but the front layer in blue eyes has no pigment. Because of this lack of pigment in the front layer of the iris, the fibers interact with light and absorb some of the longer light rays. The outcome? The eye appears a blue color. According to the American Academy of Ophthalmology, the blue color is not due to a blue pigment but to a lack of pigment to stop the light rays. As there is no blue pigment in the irises, the eyes appear blue due to physics.

How Common Are Blue Eyes?

The American Academy of Ophthalmology cites a 2014 Harris Poll confirming that in the United States, 27 percent of the population has blue eyes. It is estimated that about 8 to 10 percent of the world population has blue eyes. Certain health conditions and traits are more common in people with blue eyes versus people with other eye colors. A big advantage to blue eyes is that research shows they might be linked to a lower risk of developing cataracts. Cataracts are clouding of the eye’s lens. According to some studies, blue eyes may have evolved because these individuals were able to cope better with seasonal affective disorders. The theory is that people with blue eyes may be better equipped to tolerate long periods of low light.

Disadvantages of Blue Eyes

Is it healthier to sleep naked?

Improved sleep quality Sleeping naked certainly removes any possibility of pajama-induced overheating interfering with a good night's rest. It's...

Last updated Jul 8, 2021

Can turmeric heal the body?

Turmeric has been used as a medicine for centuries to treat wounds, infections, colds, and liver disease. Studies have shown that curcumin, a...

Last updated Jun 6, 2019

Promotion

Typically, people with blue eyes are likely to be more sensitive to light. With less pigment in the layers of the iris, they may be unable to block out the effects of bright fluorescent lights or sunlight. This condition of light sensitivity is called photophobia. It does not indicate vision loss, but it can create some difficulty focusing or seeing clearly in bright lights. It may also cause pain around the eyes. Studies show that blue-eyed people may be more at risk for developing eye melanoma. This is a rare form of eye cancer with only about 3,500 new cases per year. According to the American Cancer Society, several risk factors can increase the chances of getting eye cancer. Eye color is only one of the factors, so it doesn’t mean you will develop eye cancer simply because you have blue eyes.

One Common Ancestor

According to recent studies, people with blue eyes have a common ancestor. The new research has tracked down a genetic shift that leads to blue eyes. This significant research shows that the gene mutations affected the OCA2 gene. This gene is involved in producing the pigment (melanin) that creates the color of eyes, hair, and skin. The genetic shift turned down the ability to produce brown eyes, resulting in the creation of eyes with less pigment (blue eyes). Over time, some of the elements of the genes change while others remain unchanged. The unchanged segments are called haplotypes. When individuals share these haplotypes, scientists believe that it shows common ancestry. In recent studies, scientists are showing that people with blue eyes in Denmark share the genetic traits of people as far as Jordan. Interestingly, the same studies also show that people with blue eyes have very little variation in the amount of melanin pigment. This confirms the theory of one common ancestor with a shared DNA sequence.

5 Interesting Facts About Blue Eyes

Studies are continually identifying interesting new facts about blue eyes. Here are five of them:

1. Risk of Alcohol Dependence

Is there a home test for prostatitis?

Their Home Prostate Health Test is an at-home rapid PSA test that delivers your results in less than an hour. The kit comes with a testing device...

Last updated Jun 11, 2021

How can I test myself for prostate cancer?

Besides an at-home PSA blood test, there is no easy way to test yourself for prostate cancer at home. It's recommended to see a physician for a...

Last updated Dec 15, 2018

Promotion

Research shows that individuals with blue eyes may be at a higher risk of becoming alcohol dependent. This recent study suggests that European Americans with lighter eyes had higher odds of becoming dependent on alcohol compared to people with darker eye colors. While the mechanisms are still being studied, further research is needed to fully understand why this may be the case.

2. Blue Eyes Can Change

Babies may be born with blue eyes, but the color can change over time. The color of a baby’s eyes can change due to increased melanin production, causing the color of the eye to become hazel, green, or brown. This is perfectly normal and the color transition can occur in the first few months or years of life. The biggest changes in eye color occur between 3 and 6 months of age.

3. Blue Eyes Are Rare

According to the World Atlas, only 8 to 10 percent of the world’s population has blue eyes. Blue-colored eyes are most commonly found in northern Europe.

4. Blue Eyes Are Not Predictable

While the old model of genetics believed that blue eyes could only be inherited from two blue-eyed parents, genetic models have evolved. The new understanding is that eye color is influenced by as many as 16 genes. Studies show that brown-eyed parents can carry a recessive gene for blue eyes. If both parents have blue eyes, it doesn’t necessarily mean their child will. Likewise, two brown-eyed parents can have a baby with blue eyes.

5. Blue Eyes Are More Light-Sensitive

Blue eyes contain less melanin, making the eyes more sensitive to bright lights. Wear sunglasses to protect your eyes from UV light, and wear them more frequently if your eyes feel particularly sensitive. If you have blue eyes, you may want to limit sun exposure overall.

References

myvision.org - Blue Eyes: Advantages, Disadvantages & More | MyVision.org

How long can you wear a diaper?

Most children will complete toilet training and be ready to stop using diapers between 18 and 30 months of age,1 but this certainly isn't the case...

Last updated May 25, 2020

Is there a dominant blonde gene?

So all in all the answer to your question is neither! Blonde hair, brown hair, blue eyes, browns eyes … none of those traits are dominant or...

Last updated Nov 29, 2019

Promotion

Does zinc remove dark spots?

It heals dark spots Zinc oxide should always be a part of your skincare regime as it whitens your skin and heals melasma and dark spots. A broad-...

Last updated Dec 2, 2018

Promotion

Does lemon water increase urination?

Lemon water is a diuretic Water is an effective diuretic, which is a substance that encourages urination. In addition, any food that contains...

Last updated Apr 21, 2020