We often think we know everything about our eyes—after all, we use them constantly every day. But eyes hold many fascinating secrets that most of us have never heard about. Check out these 10 surprising facts about your eyes that are sure to amaze you!
1. There are no two identical pairs of eyes in the world! Every iris is absolutely unique, just like fingerprints.
2. We blink about 12 times per minute.
3. The muscles that control our eyes are among the most active muscles in the human body!
4. Some people have different-colored irises. This condition is called heterochromia, and it’s extremely rare – found in only about 1% of the population.
5. It’s impossible to sneeze with your eyes open, but yawning with open eyes is totally possible.
6. Newborn babies don’t actually cry! While they make crying sounds, their eyes don’t produce tears until about one month after birth.
7. Eyes can actually “repair” themselves while you sleep! This is possible thanks to orthokeratology lenses, which correct refractive errors overnight, allowing for clear vision during the day.
8Eye color can change over time. Some newborns are born with a different eye color than they’ll have later in life – often changing from blue to green or brown. This is due to melanin production in the irises, which gives them their color.
