11. Eye color can change
The human iris or ocular fluid has neither blue nor green pigments. Eye color depends on the lighting conditions, especially lighter-colored eyes.
10. Each eye contains 107 million light sensitive cells
7 million “cones” helps you see color and details while the 100 million “rods” help distinguish black and white. Actually, less than a tenth of your visual receptors detect color.
9. If you wear glasses that flip images upside down, your brain corrects your vision.
Your brain adapts things upside down and you are seeing things right side up (even if you’re really not)
8. The muscle that lets your eye blink is the fastest muscle in your body
Normally a blink lasts 100 to 150 milliseconds and it’s possible to blink five times in a second.
7. You see with your brain, not the eyes.
A poor vision isn’t caused by the eye at all. The blurry vision stems from something going wrong in the visual brain cortex.
6. Everybody gets cataracts getting older.
Usually, for most people, age-related cataracts start to develop at the age of 70 years.
5. Your eyes water when they’re dry.
Tears have three different components – fat, mucus and water. If they aren’t exactly in their right quantities, the eyes could become dry. In such a manner, your brain responds to dryness by producing more tears.
4. Eyes heal quickly.
It will only take approximately 24-48 hours for the eye to heal a corneal scratch.
3. Newborns don’t produce tears.
Yes, they cry loudly, but they cannot produce tears. Babies tears begin to flow only when they are around 4 to 13 weeks old.
2. Eye measurements.
Your eyes are about an inch in diameter and weighs about 0.25 ounces.
This eye condition happens when a person is born with two differently colored eyes. A difference in coloration can be present at birth (congenital) or acquired.