Comment by mattjaynes
1 year ago
Ask yourself, how much brighter is it outside than inside (assuming a sunny day vs a brightly lit office)? Before looking into this, I would have guessed 2X or 3X, but would you believe it's actually over 100X!
I bet most people's guess would also be off by 1 or 2 orders of magnitude.
Even outdoors in the shade, it is over 50X brighter than indoors.
(For specific numbers and comparisons, see: https://news.ycombinator.com/item?id=25909557 )
So if you're living in a multi-storey apartment block in a place where there are periods of rain, cold and darkness, naturally your routine will not be conductive of spending lots of time outdoors. What's the plan B?
Sure, if you live in Australia with a tiny population living in own houses (while they can still afford those), they risk UV-burns more than myopia. But that doesn't scale that great.
Nothing can replace full spectrum natural light, so face a window or go outside, when possible, https://endmyopia.org/why-vision-is-worse-at-night-and-on-cl...
Indoor, try Sylvania TruWave LED (2700K, high CRI, low flicker, high lumens), https://gembared.com/blogs/musings/the-best-daytime-white-li...
I think most people are capable of spending time outside every day, even if they live in an apartment.
I’m typing this from a cafe in Manhattan, I try to walk at least a few km every morning. I did the same thing when I lived in Seattle. My understanding is you don’t need direct Australia-level sun to get the benefits we’re talking about.
Maybe have your kids room as bright as outside with >200W of LED lightning?
[dead]