• MalReynolds@slrpnk.net
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    2 hours ago

    Used to be as people got older and their lenses lost flexibility they’d develop farsightedness (presbyopia) and need reading glasses, now it’s common to become shortsighted instead, due to screens. VR may help, or at least let you choose your own adventure.

    • pixxelkick@lemmy.world
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      2 hours ago

      Prism is neither near nor far sighted issues.

      Prism is a muscle problem, where the actual muscles of your eyes get weaker because you arent using them as often to focus on objects far away, so they lose flexibility.

      Akin to how if you sit in a chair all day and arent actively stretching purposefully, you lose flexibility in the rest of your body too.

      As far as I know, focusing on objects has no impact on eye shape changes, its just genetic on which way your eyes start to squish/stretch as you get older. Thats just a byproduct of the fact our face and tissues change as we get older.

      • Left as Center@jlai.lu
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        52 minutes ago

        Having outdoor activities is correlated to a decrease of myopia, whereas longer studies are correlated to an increase. There are environmental factors, but AFAIK we don’t know the mechanism behind