It is about 20 hours of outside play a week, more or less, from early childhood, through tweens, teens, and into college. When you mean you did, most of your young life, was it about that much?
The second thing I would ask is if you have astigmatism or myopia. They are not the same thing.
The third thing is that the Taiwanese protocol included an early childhood intervention for a portion of the population. They have a test and an additional treatment. I don’t remember the details. If you have myopia instead of astigmatism, you might be one of those kids.
Lastly, there are still some kids who develop myopia anyways in Taiwan after establishing this program.
(It would actually be cool to see if myopia rates change along towns near a time zone border -> kids getting out of school during the brighter time of the day)
They were comparing against kids in Australia. I forgot the exact details, but the policy developed was to add additional time during schools, and educating parents. Two hours a day cumulative, five day a week or something along those lines.
This isn’t something one has to spend a lot of time optimizing within certain latitudes, since there are benefits for kids being outdoors beyond halting progression of myopia. Although, if you think this can reverse myopia, it is worth biohacking.
If I recall, the article I read on this was posted on HN.
Did you read recreationally as a child? I did not read books until I was 13. Not one before 12—-mild dyslexia. Emmetropic though to my 70s. My kids were both heavy readers almost as toddlers, as was my wife. All are 8 diopters myopic. Saved by dyslexia ;-)
The second thing I would ask is if you have astigmatism or myopia. They are not the same thing.
The third thing is that the Taiwanese protocol included an early childhood intervention for a portion of the population. They have a test and an additional treatment. I don’t remember the details. If you have myopia instead of astigmatism, you might be one of those kids.
Lastly, there are still some kids who develop myopia anyways in Taiwan after establishing this program.