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Re:Gwern's Law: Ads cost you a tenth of your users by scarface74 on Thursday March 14, 2019 @04:48PM (#19393549)
I was looking for research to say that is a myth. But from a trusted source: The American Optometric Association:

https://www.aoa.org/patients-and-public/eye-and-vision-probl...

Re:Gwern's Law: Ads cost you a tenth of your users by DuskStar on Thursday March 14, 2019 @06:21PM (#19394433)
I think there's more evidence that it's lack of bright light, not an excess of screen time, that can cause nearsightedness.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5976264/