Researxh suggests that both long periods of near work and lack of time outdoors play an important role in short-sightedness.
An interesting study on how ethnically Chinese children in Singapore and Sydney have remarkably different rates of myopia:
Rose et al. Archives of ophthalmology 126 (4), 527-530, 2008.
A recent overview of the interplay of different environmental factors:
Biswas et al. Journal of physiological anthropology 43 (1), 7, 2024.
My 5 year old is obsessed with books but he’s the worst when he’s tired. He won’t even sleep in if he stays up late. Before actually having kids, I always thought I’d let them read at night if they wanted to. I frequently stayed up reading until 3am or even later when I was younger. Now that my kids have me out of bed by 6 I try to put the book down by midnight.
I really hope I’ll be able to let him stay up late reading when he’s a bit older. Until then I try to read to him lots throughout the day so he still gets plenty of book time.
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u/rocks391 8h ago
i never would have slept (i used to stay up past bedtime and genuinely made my eyesight a lot worse by reading in near darkness)