Anonymous wrote:
Anonymous wrote:not answering your question directly OP but just want to jump on here to say that studies are coming out that links bad eyesight with being too much indoors (the eye is still developing during childhood and the amount of lumens the sun gives, even on a cloudy dark day, is way higher than indoor light, and it triggers the eye development).
So one helpful thing to do is have your kids do homework or even play on their devices outdoors in good weather.
NP. That's interesting about the light. I had understood that time outdoors was critical to preventing nearsightedness because the eyes are focusing over longer distances. That's why being bookish is associated with needing glasses-- because hours spent focusing on something (a book) close up affects the eyes' ability to focus on distance.
Top PP here. Yes I had always understood it that way as well, and based on that idea, that even when reading, to take breaks and look out the window (look far away). But what I wrote above is different than that, and has to do with the sunlight triggering a hormone(s) to reshape the lens of the eye--or something like that. The study was with Chinese kids; you could probably find it by googling.
(I've done a bit of eye research because one of my DCs has an eye condition that my dad had but skipped over me)