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://www.ncbi.nlm.nih…
> I bring this up because one of the largest factors in myopia development appears to be outdoor light exposure in childhood. I used to live almost on the equator. Before adolescence, I would spent most of my time outdoors. Very stable weather so windows were open most of the day (and night). There was often direct sunlight even indoors. We would go to the beach every weekend. I ended up with -5.00 and -5.25 Maybe th…
Probability is a strange beast.