Mental Floss

15 Fascinating Facts About Eyes

Kirstin Fawcett

Our eyes aren’t just windows to the soul—they’re also complex organs with a variety of fascinating features. This infographic by the Cleveland Clinic has 15 eye-opening tidbits about your peepers, including why we have two eyes, and why some people are born colorblind. You can use them to impress your ophthalmologist during your next visit, or simply gain new perspective on your ability to see (and the hardware that makes it happen).

[h/t Cleveland Clinic]