Your eyes perform some of the most complicated processes in your body. In fact, millions of nerve fibers work together to help you see. This is one of the reasons your eyes are such interesting structures. Here are some other things you may not know about them that may surprise you.
Dr. Joel H. McGahen, your low vision specialist, shares more fascinating facts about your eyes.
Blue-Eyed Individuals Come From the Same Family
Everyone originally had brown eyes. It was only until six to ten thousand years ago when the OCA2 gene was discovered in a certain family. This genetic mutation caused a variation in the eyes’ melanin content. Because the difference in genetic composition was so small, it was easily traced to the same heritage.
You Can Have Different-Colored Eyes
It’s possible to have different-colored eyes and no, it’s not just by using contact lenses. Heterochromia iridis is a condition that’s characterized by having eye colors that don’t match. Your right eye may appear green, while the left one is blue. It’s often present at birth and happens to roughly six out of a thousand newborns.
Newborns Don’t Cry With Tears
While newborns constantly cry and wail, they actually do not produce tears. Tear glands only develop between the 4th-13th week after birth. This is one of the things your pediatric eye care specialist examines during a newborn’s baseline eye exam.
Approximately 90% of All Reported Eye Injuries Are Preventable
Did you know that roughly 90% of the reported cases of eye injuries could have been avoided? Using proper protective eyewear can keep your eyes safe and free from trauma. Your eye doctor recommends purchasing safety goggles that are made of polycarbonate, as this material is well-known for its ability to resist high impact and pressure.
To learn more about your eyes, call us at (717) 609-4443. You may also complete our form to schedule an appointment. We serve PA residents in Shippensburg, Greencastle and nearby communities.