Comment by walterbell
1 year ago
Note the references to color in the 2022 Nature paper:
> Here we show that, even though filtered movies looked similar, eyes became significantly shorter when the movie was sharp in the red plane but became longer when it was presented sharp in the blue plane. Strikingly, the eyes of young subjects who were already myopic did not respond at all—showing that their retina could no longer decode the sign of defocus based on LCA. Our findings resolve a long-standing question as to how the human retina detects the sign of defocus. It also suggests a new non-invasive strategy to inhibit early myopia development: keeping the red image plane on a computer screen sharp but low pass filtering the blue.
Okay that's great, except children get their myopia before they become casual laptop users.
I wonder if doing the same to TVs and tablets will do anything.
From the Show HN submission above:
> Some myopia control techniques work similarly, like MiSight and Hoya lenses.
MiSight is a contact lens used to slow myopia progression in children, aged 8-12 at the initiation of treatment.
What I don't like in this is the defeatist attitude of "slowing myopia progression".
If you have myopia, your life experience is already ruined, and it's not very much relevant whether it's -2 or -6. You're stuck with glasses either way so why bother "slowing it". Yes you can get retinal detachment but on average you won't.
I'm not even sure I can be bothered to spend effort on "slowing myopia progression" in my children by annoying treatments such as contact lenses or applying topical chicken guano, unless there are serious concerns. If you already have myopia just live with it. I would love for them to not have any myopia at all and perfect vision, though. Just very unlikely provided that basically everybody in my family wears glasses.
1 reply →