Quick ye Quiz-Different EyeColors and Your Health Relation? Know

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INTRODUCTION-

EyeColors and Your Health-is one of the first things we notice about someone. We often use eye color to determine people’s personality traits, character, and even their intelligence. But did you know that eye color actually affects our physical health? There are many different types of eye colors, ranging from blue to brown to green. Each type of eye color has its own unique characteristics. Blue eyes have been linked to higher IQ levels, while brown eyes have been associated with lower IQ levels. Green eyes have been shown to be linked to allergies, while yellow eyes have been linked to asthma EyeColors and Your Health

EyeColors and Your Health

Blue Eyes–EyeColors and Your Health-The most common eye color is blue, and it is believed that blue-eyed individuals tend to have higher IQ levels than those with brown or hazel eyes. A study conducted at the University of California, San Francisco showed that blue-eyed children had higher IQ scores than those with brown or gray eyes. Another study done at the University of Michigan showed that blue-eyed men were more likely to earn higher salaries than those with brown or green eyes.
Brown Eyes– EyeColors and Your Health-It seems that brown eyes are linked to lower IQ levels. In fact, a study done at the University College London showed that brown-eyed students scored significantly lower on tests measuring verbal reasoning skills than those with blue or green eyes. Brown-eyed women also tended to score lower on tests measuring spatial reasoning skills than those with green or blue eyes.
Green Eyes–EyeColors and Your Health-Green eyes are thought to be linked to allergies. A study at the University of British Columbia showed that people with green eyes were more likely to suffer from hay fever than those with blue or brown eyes. A study conducted by the University of Manchester showed that green-eyed children were more prone to develop allergies than those with blue or hazel eyes.
Yellow Eyes– EyeColors and Your Health-People with yellow eyes are more likely to get asthma than those with brown or blue eyes. A study conducted in Japan showed that asthmatic patients with yellow eyes were more likely to experience attacks than those with brown or amber eyes.

QUIZ-Multiple answer-

  
 

1-What’s the rarest eye color?

1. Brown
2. Blue
3. Green
4. Hazel

CHECK ANSWER– (3) Only about 2 percent of the world’s population sports this shade.

2-What was the first eye color?

1. Blue
2. Green
3. Hazel
4. Brown

CHECK ANSWER–(4) Just 10,000 years ago, all humans had brown eyes. As they migrated north to Europe, a gene mutation occurred to reduce melanin production, leading to blue, green or hazel eyes.​

3-If you have brown eyes, you’re most at risk for

1. Skin cancer
2. Cataracts
3. Macular degeneration
4. Diabetic retinopathy

CHECK ANSWER– (2) 2014 review of studies in JAMA Ophthalmology found that darker eye color is linked to an increased risk of cataracts. But brown eyes have a lot of pigment, which appears to be protective against skin cancer, macular degeneration and diabetic retinopathy.

4-True or false? Elizabeth Taylor had violet eyes?.

1. True
2. False

CHECK ANSWER–(2) Though Elizabeth Taylor made headlines with her mythical violet eyes, her eyes were in fact blue. Blue eyes can appear as assorted colors based on lighting conditions.

5-What medication(s) can cause eye color changes?

1. Blood pressure meds such as beta blockers
2. Diabetes drug metformin
3. Prostaglandins to treat glaucoma
4. Statins for high cholesterol

CHECK ANSWER-( 3) Prostaglandins can cause permanent eye color changes, usually making eyes darker.

6-Which of these conditions can cause you to be born with red eyes?

1. Albinism
2. ​Heterochromia
3. Cataracts
4. Uveitis

CHECK ANSWER–(1) People with albinism have little to no melanin in their skin, hair and irises, which means their eyes may appear pink or red because the blood vessels are visible.EyeColors and Your Health

7-Which of these is NOT an age-related reason your eyes might change color?

1. Cataracts
2. Arcus senilis
3. Diabetes
4. Horner’s syndrome

CHECK ANSWER-(3) Cataracts — a clouding of the eye lens that can make your eye look milky white — and arcus senilis — a hazy blue, gray or white ring on the cornea caused by a buildup of lipids — are common in older adults. Horner’s syndrome — a condition in which a nerve pathway from your brain to your head and neck is disrupted can cause one pupil to look lighter. EyeColors and Your Health

8-Which of these genes helps determine your eye color?

1. HER7
2. OCA2
3. MC1R
4. APOE4

CHECK ANSWER–(2) About 75 percent of eye color is due to OCA2. It makes melanin, a substance in your body that produces hair, eye and skin pigmentation.

9-True or false? You can predict a child’s (or grandchild’s) eye color based on their parents.

1. True
2. False

CHECK ANSWER–(2) There are at least eight different genes that influence eye color. That’s why parents who have the same color eyes can have a child who has a different eye color.

What determines your eye color?-

About 75 percent of eye color is due to one gene, OCA2. It makes melanin, a substance in your body that produces hair, eye and skin pigmentation. If you inherit two nonfunctional copies of the OCA2 gene from your parents, you will go on to develop blue eyes. {1}

Eye color is determined by the amount of melanin present in the iris. Melanin is produced by melanocytes (pigment producing cells) in the iris. The amount of melanin in the iris determines the color of the eyes. In humans, the genes responsible for determining eye color are located on chromosome 15. There are three major types of human eye colors: blue, brown, and hazel. Blue-eyed people have two recessive alleles at the MC1R locus, while brown-eyed people have only one allele. Hazel-eyed people have both alleles at the MCIR locus.
Blue-eyed people have two copies of the gene for the pigment eu-. Brown-eyed people have one copy of the gene for the pigments eb-, and hazel-eyed people have two. People who inherit the gene for the pigment eb- have brown eyes. Those who inherit the gene for eu- have blue eyes.

Two Different Colored Eyes Mean?-Heterochromia–

EyeColors and Your Health–Heterochromia iridum (also known as heterochromia) is a condition where one eye is different colors than the other. It’s not uncommon among people who have blue eyes, but some people have two different colored eyes. There are many reasons why someone could have heterochromia iridums, including genetics, injury, illness, birth defects, medication, and even aging.
The first step to diagnosing heterochromia iridium is determining if both eyes are affected or just one. If only one eye is affected, then it’s called unilateral heterochromia iridis. If both eyes are affected, then it’s bilateral heterochromia iris.
Unilateral heterochromia iridi is caused by a genetic disorder called Axenfeld-Rieger syndrome. People with this syndrome have a small hole between their iris and cornea. This causes fluid to leak out of the eye and make it appear cloudy.
Bilateral heterochromia is caused by a number of things, including trauma, infection, inflammation, and tumors. Trauma is the most common cause of bilateral heterochromia. A person may get hit in the face and lose blood flow to the eye, causing the iris to turn red. Inflammation can also cause the color change. An inflammatory disease called uveitis can cause the iris to become red and swollen. Tumors can also cause heterochromia iridia. A tumor on the optic nerve can cause the iris of one eye to look different than the other.
If you notice any changes in your eyesight, contact your doctor right away. Your doctor can perform a physical exam and check your vision. He or she can also order tests to determine what’s going on inside your body.EyeColors and Your Health

More to know…

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