9. “20/20 vision” doesn’t mean you have perfect vision. It just means you see at 20 feet what the average person sees at 20 feet.
Glasses can correct your vision to 20/20 in many cases, but that’s just good enough to be average. Some high-tech solutions have recently emerged, such as contacts, that are meant to give humans better than 20/20 vision. 10. Shortsighted people have a longer than normal eyeball.
11. Farsighted people have a shorter than average eyeball.
12. Your eyeballs are nearly the same size now as they were when you were born.
Babies are born with big heads that are not proportional to their body. Apparent that head is big enough to house almost fully grown eyeballs.
