20 Fun Facts You Probably Didn't Know About Your Eyes – Our Optometrists Have The Scoop!
You use them every day, and have been doing so for years. You think you know everything about them? Here some things you may not know about eyes and vision!
- Did you know that infants can’t produce tears for the first few weeks? They will ‘cry’ and make noise, for sure, but tears don’t start flowing until after 4 weeks.
- On average, we blink about 15 timesper minute. That's up to 1,200 times per hour and… ready? 28,800 times in a day!
- We spend about 10 percent of our waking hours with our eyes closed.
- Your eyes can get sunburned!
- 20 seconds is all you need! If you spend a lot of time at the computer or focusing on any one thing, you sometimes forget to blink and your eyes can get fatigued. Try the 20-20-20 rule: Every 20 minutes, look away about 20 feet in front of you for 20 seconds. This can help reduce eyestrain.
- It may take some time for most muscles to “warm up” to get ready for action, but your eyes muscles are always ready to go – no warm up needed!
- The cornea is one of the fastest healing part of your body. With proper care, a corneal scratch can be totally healed in 24-48 hours.
- Almost half of your brain is involved in vision – talk about an important part of your life!
- Around the world, about 39 million people are blind and roughly 6 times that many have some kind of vision impairment.
- They human eye can distinguish about 10 million different colors.
- People with blue eyes have a chance of alcohol tolerance.
- With all of the advances in medicine – an eye transplant still remains far from reach. The optic nerve, which connects the eye to the brain, is a bundle of over 1 million nerve fibers and many blood vessels. For now, it seems to complicated to reconstruct.
- Goldfish can’t close their eyes or blink – they don’t have eyelids!
- Cats have three eyelids. You’d think they would share with goldfish but they won’t. #selfish
- Rods and Cones are types of cells in the eye, and they’re named that way because that’s how they look under the microscope!
- Some people are born with two differently colored eyes – just like huskies! This is called heterochromia, and it’s pretty awesome. Some famous people with heterochromia: Simon Pegg, Mila Kunis, Jane Seymour, Robert Downey, Jr., Kiefer Sutherland, Olivia Wilde, and Henry Cavill.
- Dolphins sleep with one eye open (gripping their pillow tight…) #startjumping
- Blue and green eyes are recessive traits, and can be carried for generations until they ‘pop up’ again. This happened with Dr. Dovie’s son, Sullivan! Dr. Dovie has hazel (brown/green) and his wife has brown, but Sullivan has the bluest blues! 🙂
- The space between your eyebrows is called the nasion.
- Nearly all (80%) of all causes of blindness and vision impairment are preventable, if not curable!
Just imagine all the other things you have yet to learn about your eyes and your vision! Make sure you give your eyes the love and attention they deserve – get them checked yearly!
Call today to make an appointment with one of our awesome eye doctors at Blacksburg Eye Associates!