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In honor of St. Patrick’s Day and the “wearin’ of the green,” we thought it would be fun and fitting to share some interesting facts about green…eyes!

#1

Green is the rarest eye color. If your sparklers are truly green, you are something of a unicorn… only about 2% of the world’s population sport this hue. 

#2

Green-eyed people can be found all around the globe. There is a Chinese village, Liqian, where a high percentage of the population sports green eyes and lighter hair.

#3

There isn’t any actual green pigment in a green eye. Melanin, a natural pigment that helps determine our skin, hair, and eye color, is found in all eyes. Brown eyes have quite a lot and blue eyes have relatively little. Green eyes are also low on melanin, but in addition they contain lipochrome, a yellowish, fat-soluble pigment. Lipochrome is also found in things like butter, eggs, and corn. So a little melanin, some lipochrome, and a cool light dispersing scattering called the Tyndall Effect combine to produce those rare green eyes!

#4

At least 16 genes contribute to eye color. You might have been taught in biology class that two brown-eyed parents can have only brown-eyed children, but it’s more complicated than that.

#5

Green eyes are popular in cultural references. Here are some famous characters with green eyes:

·         Jane Eyre—that plucky governess living in a “haunted” mansion, from the book Jane Eyre

·         Rapunzel—another courageous hero in Tangled

·         Scarlet O’Hara—feisty protagonist in Gone with the Wind

·         Scar—the scheming uncle in The Lion King

·         Mary Jane Watson, Catwoman, Batgirl—green eyes are popular in the world of comics

·         Sara Crewe—brave little girl from A Little Princess

·         Harry Potter – from the Harry Potter book series by J.K. Rowling

#6

In a large survey performed by All About Vision, green was voted the most attractive eye color, with over 20% of the 66,000 respondents choosing this hue.

#7

More women than men have green eyes. Scientists aren’t sure why this is, but it suggests there is an underlying gender-related factor that causes this difference.

#8

Animals can also sport green eyes.  Green eyes occur in dogs, snakes, frogs, birds, monkeys, multiple members of the cat family, and many other animals.

#9

People with green eyes are more likely to have certain health issues. Green eyes are more prone to melanoma of the uvea, a type of eye cancer, than are dark eyes. The same is true for macular degeneration. If you have green eyes, protect those beautiful peepers with a quality pair of sunglasses to lower your chances for these diseases!

Have you ever seen a temporary black spot in your vision? How about jagged white lines? Something that looks like heat waves shimmering in your peripheral vision?

If you have, you may have been experiencing what is known as an ocular migraine. Ocular migraines occur when blood vessels spasm in the visual center of the brain (the occipital lobe) or the retina.

These optical migraines can take on several different symptoms, but they typically last only from a few minutes to an hour. They can take on either positive or negative visual symptoms, meaning they can produce what looks like a black blocked-out area in your vision (negative symptom), or they can produce visual symptoms that you see but know aren’t really there, like heat waves or jagged white lines that look almost like lightning streaks (positive symptoms).

Some people do get a headache after the visual symptoms but most do not. They get the visual symptoms, which resolve on their own in under an hour, and then generally just feel slightly out of sorts after the episode but don’t get a significant headache. The majority of episodes last about 20 minutes but can go on for an hour. The hallmark of this problem is that once the visual phenomenon resolves the vision returns completely back to normal with no residual change or defect.

If you have this happen for the first time it can be scary and it is a good idea to have a thorough eye exam by your eye doctor soon after the episode to be sure there is nothing else causing the problem.

Many people who get ocular migraines tend to have them occur in clusters. They can have three or four episodes within a week and then may not have another one for several months or even years.

There are some characteristics that raise your risk for ocular migraines. The biggest one is a personal history of having migraine headaches. Having a family history of migraines also raises your risk, as does a history of motion sickness.

Although the symptoms can cause a great deal of anxiety, especially on the first occurrence, ocular migraines rarely cause any long-term problems and almost never require treatment as long as they are not accompanied by significant headaches.

So if symptoms like this suddenly occur in your vision, try to remain calm, pull over if you are driving, and wait for them to go away. If they persist for longer than an hour, you should seek immediate medical attention.