Funny thing is, even though I can see 20/10 now, I used to be able to see a bit better. I once saw a chart that went down to 20/05, and I could read it, barely. Never saw another one since, though.
Even though I see 20/10 now, I can tell that things aren't quite as sharp as they used to be. Like traffic signs....I can see a speed limit sign just fine, no problem reading it, but from a distance, the numbers aren't as clear as in the past.
I feel lucky, though. I'm 37 now, and at this rate, I'll probably still be around 20/20 when I'm old....unless the eyes really go south.