I'm 32 and needed glasses for the first time last year, just mild nearsightedness which runs in my family, and I'm actually doing better than most (my mom and sister both needed glasses as teenager).
I eat healthy/exercise and use dark-mode themes where available to minimize glare. That's it's for eye health. I wonder if the negative association of eye health to screen time is less about the screens and more about high blood pressure brought on by being sedentary. High blood pressure absolutely destroys the eyes over time.
I get pretty nasty headaches and my eyes start hurting after looking at monitors with PWM backlights. Some of my screens are fine, some begin to hurt my eyes after an hour or so.
You don't go blind from staring at a screen. Claims otherwise are the same as 5G conspiracy theories. Photons are photons.
You might get issues from focusing at the same distance all the time. Or that theory about dopamine may be true - but if anything, screens are an improvement over things like paper books. And it applies to adolescence anyway.
And nearsightedness is not anywhere near going blind.
Bruh long axial length stretches the retina and detaches the vitreous jelly faster from the back of the eye since eye volume keeps increasing (you see this as flashes of light), putting you at risk for retinal detachment, which very much leads to blindness. :v
I live in constant fear of it (though chance is smol).
