The coolest thing was that the doctor purposely over- corrected my vision, so for the first several months I could see clearly at a ridiculous range.

The coolest thing was that the doctor purposely over- corrected my vision, so for the first several months I could see clearly at a ridiculous range. This is a bit more marketing than straight up truth. Optical systems don't work like that. You can't "over-correct", since obviously, that would be the ideal point of focus. You're still limited by the ultimate physical resolution of your retina, and it sounds like, for a while, you were operating at that limit. Vision much better than 20/20 isn't terribly uncommon, and it sounds like you're one of those people. That is, if there wasn't any cognitive biases at work. Perceived visual acuity is like some kind of platonic ideal of something that would be very vulnerable to confirmation bias. Were you experimentally tested to be something like 20/10, then tested later to be 20/15?