22/04/2026
11 Amazing Facts About Your Eyes
It’s important to take good care of our eyes. They’re the only ones we get. Here are some interesting facts about eyes that may amaze you!
1. Each eye is composed of more than two million working parts.
2. Eyes are the second most complex organ—after the brain.
3. The typical blink lasts for only about 1/10th of a second, and you blink about 12 times each minute.
4. Corneas are the only tissues that don’t have any blood flow.
5. Eye development starts two weeks after conception.
6. The muscles controlling the eyes are the most active muscles in the body.
7. Healthy vision requires the involvement of almost half the brain.
8. Eyelashes have a lifespan of about five months. The total length of all the eyelashes lost by a human in their life is about 30 meters, or 98 feet.
9. Newborns don’t typically produce tears. Although they make crying sounds, tears don’t start flowing until they are about four to 13 weeks old.
10. Worldwide, about 39 million people are blind, and roughly 250 million have some kind of vision impairment. About 80 percent of vision problems worldwide are avoidable.
11. Currently, it is not possible to transplant an eyeball. The optic nerve that connects the eye to the brain is too sensitive to reconstruct successfully.
https://askthescientists.com/qa/visionex/
ctto: Ask the Scientists