Thanks! The first study is interesting because it links axial eye growth inhibition to high light levels, not necessarily being strictly outdoors (UV) nor avoiding close-up activities like reading. Interesting.
And again I am skeptical of claims that it is just one factor like brightness alone. There is other research about spectrum and distant objects in view that also shows effects. So even if you did use 100x brighter lights in your house there's no guarantee you would fix the problem.