[spodek]

Has anyone tried to improve eyesight using the techniques in Getting Stronger: https://gettingstronger.org/2014/08/myopia-a-modern-yet-reve... ?

They seem plausible -- certainly that populations that don't look far away seem to need to correct their vision more, which implies behaving differently could lessen or reverse the effect. But I don't know of them being tested. I'm curious to get n higher than 1 before devoting resources to it.