I would agree that puberty has a big effect on eyesight. I had terrible vision as a child, glasses from about 6 years old on. At 12, about the time my growth

I would agree that puberty has a big effect on eyesight. I had terrible vision as a child, glasses from about 6 years old on. At 12, about the time my growth spurt kicked in and I shot from 5'5" to 6', I suddenly realized I could see fine without my glasses (which was fantastic, since that was when I started playing basketball a lot, and gah, RecSpecs...) I've had roughly 20/20 vision since.