I want to think it's this. My anecdotal data point is I was outside nearly every day as a child and I assumed my vision was fine. It wasn't until 2 years into u

I want to think it's this. My anecdotal data point is I was outside nearly every day as a child and I assumed my vision was fine. It wasn't until 2 years into university that I had my vision checked and got my first prescription and it was night and day better. I imagine there's a great deal of people that don't know they should get prescribing correction glasses.