The eyes are amazing.
Did you know:
"The dimensions differ among adults by only one or two millimeters. The vertical measure, generally less than the horizontal distance, is about 24 mm among adults, at birth about 16–17 mm. (about 0.65 inch) The eyeball grows rapidly, increasing to 22.5–23 mm (approx. 0.89 in) by the age of three years. From then to age 13, the eye attains its full size."
Find out about some great eye facts by following the links below:
http://www.factslides.com/s-Eyes
http://discoveryeye.org/blog/20-facts-about-the-amazing-eye/