I started wearing glasses in junior high, though my eyes were never that bad. My problem initially was that one eye was a little far-sighted and the other was a little near-sighted. So in one sense, it all averaged out, and in the other sense I got headaches when I read, because my eyes couldn't agree to disagree. And since I would have read 24/7 if able at that age, headaches were a problem.
My eyesight being what it was, when I started driving and had to take the vision test for my license, I decided to give it a try without my glasses. Things were pretty fuzzy, and I felt like I was guessing at a certain point. "E? F? T? It's not an O, I'm pretty sure of that!" In any case, I "passed" the eye exam and didn't have any restrictions listed on my license. In fact, ever since, when renewing my driver's license or moving to a new state, I have always "passed" the eye exam by approximating the basic shapes of letters I couldn't really read.
Here in Holidailies, I have encountered a similar phenomenon, as I discover new blogs. Several of the blogs that I've visited require some kind of test to "Prove you're not a robot." Apparently, robots are unable to guess at which letters are implied by vague scribbles, whereas I have honed this skill to an art form. Sometimes I type in my guess and I'm sure my comment will be rejected, but I haven't missed one all December, so either I'm pretty good at intuiting what's wanted based on little or no evidence, or being willing to make a guess is all the proof these blogs need that I am not, in fact, a robot. I guess we've found the new Turing test.