I like this post from Town and Country, because I have blue eyes too.
Everyone with blue eyes has a common ancestor.
Only 8 to 10 percent of the worlds population have blue eyes and we are all related to one another due to our 1 common ancestor so long ago.
Blue eyes stem from a single gene mutation about 6,000-10,000 years ago. This means that back then, one person had a faulty gene that did not produce melanin in the iris.
Blue eyed people are more sensitive to light. (Welcome to my world). Just the same way that skin can get damaged by sunlight, so can eyes. The less melanin you have in your eyes, the more kinds of light can get in, and do more damage; brown eyes block more of the harmful UV rays.
People with blue eyes should be extra careful and use sunglasses whenever possible. For the same reason, blue eyed people have more eye problems associated with screen…
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