[zdc1]

I recall studies showing that reading in poor lighting conditions is a cause of myopia in children. So I'm questioning whether we want to be reducing luminance on our devices at all.

I like my (warm-coloured) lights and screens set to max brightness. I find it's easier to read and lets me work with more distance from the screen.

But what about easier sleep? Could we exercise more? Leave screens out of the bedroom? I have no idea.

[zargon]

Significant outdoor exposure is essentially the only relevant factor for preventing myopia. I would be interested in seeing any studies that showed any meaningful relevance of low light reading, while controlling for time spent outdoors.

[avadodin]

Main factor is genetics.

I was gaming on a blurry CRT and reading on a dim light while hardly ever going outside during my teens and I only have light myopia on one eye.

I don't know if it has ever been studied, but I suspect eye socket morphology from my own family anecdata.

large eyes + small socket = squashed eyes.

It could be different genetic factors for different populations too.