I had the same experience. It's strange. I always thought that was normal (that you could see better underwater than above water). I don't really like swimming, so I haven't done it more than once or twice as an adult. Now I'm curious if I would have the same experience.
Maybe swimming a lot underwater causes nearsightedness. But then, in the article, I see:
> She thought the first theory was unlikely, because a fundamental change to the eye would probably mean the kids wouldn’t be able to see well above water. A simple eye test proved this to be true – the Moken children could see just as well above water as European children of a similar age.
