6 interesting facts about human eyes
Our eyes are a truly amazing phenomenon! They are the most complex organs. We’ve had our peepers since we were born. We may think you know them pretty well, but we don’t.
Here are some facts about the human eyes which I simply found fascinating.
1. No crying matter
Do you know that there are 3 different types of tears? Our tears have different compositions. They’re based on whether something’s irritating your eye, emotional or simply to keep our eyes moisturized.
2. Bless you!
Do you know that it impossible to sneeze with our eyes open? Clamping our eyes shut is an involuntary reflex. It’s simply an uncontrolled body response.
It was once believed that we shut our eyes while sneezing to prevent our eyes from popping out. Just an urban legend, of course!
3. Two shades
Do you know some people are born with two differently coloured eyes? This condition is called heterochromia.
Hollywood celebs such as Christopher Walken and Demi Moore have this condition.
4. Super vision
Do you know that about 2% women have a rare genetic mutation that enables them to see 100 million colors? A condition called tetrachromacy.
5. High-resolution eyes
Do you know that if the human eye was a digital camera, it would have 576 megapixels? Talk about high quality images.
6. Twitchy eyes
Do you feel your eyes constantly making tiny jerking movements? This is called blepharospasm, which is an involuntary movement of the eyelid every few seconds.
For the superstitious lot, a mere twitch in your eye can bring with it a throng of superstitious thoughts. For instance, ladies, if you are from China or India, a twitching left eye signifies good luck.
Well, there you go! Interesting aren’t they?