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I believe that's still under active research. If this is a factor, my money is more on "your eyes will be focusing more at infinity" rather then low light levels.
Could be lack of Vitamin D.
Ask yourself, how much brighter is it outside than inside (assuming a sunny day vs a brightly lit office)? Before looking into this, I would have guessed 2X or 3X, but would you believe it's actually over 100X! I bet most people's guess would also be off by 1 or 2 orders of magnitude. Even outdoors in the shade, it is over 50X brighter than indoors. (For specific numbers and comparisons, see: https://www.ncbi.nlm.nih…
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This is similar to the “active focus” method: https://endmyopia.org/ I’ve been in this Facebook group for a while and lots of people have great personal anecdata about their improvements. It’s really interesting to see a medical device come out and if they have clinical trials to back it up.
this method is absolute snake oil. Google around. Most myopia is axial in nature - in layman terms - your eyeball is just too long. No amount of exercises or staring into the sun is going to reduce its length.
https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom...
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More details from the Bloomberg PR: Kubota Glasses technology works to reduce the increase in axial length associated with myopia by projecting myopically-defocused virtual images generated using micro-LEDS on the peripheral visual field to actively stimulate the retina. Passive stimulation using myopic defocus is already in use in the US with a contact lens, “MiSight^® 1 day” by CooperVision, which is U.S. Food and…
Key words: "reduce the progression". Which means that marketing this as a cure is a complete fraud.
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That's only correlation, light brightness has nothing to do with myopia. It's more likely from looking at things farther away from the face outside so that there is less light focused on the fovea.
Correlation does not imply causation but it does imply having something to do with the other. Your first sentence contradicts itself.
Correlation does not imply having something to do with another.
For example, in the first decade of the 21st century, spending on space exploration had a 99.8% correlation with a specific subset of suicides (hanging?).
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Could be lack of Vitamin D.
Then you would expect darker regions of the world which have lower serum levels of vitamin D to have more sight problems, I don’t think that’s the case.
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I'm short-sighted. I'm more worried about blurry traffic than blurry food.
-2 is not that blurry. You may not be able to reliably read a license plate at distance but you'll still see the (mildly blurry) car coming at you.
Ask yourself, how much brighter is it outside than inside (assuming a sunny day vs a brightly lit office)? Before looking into this, I would have guessed 2X or 3X, but would you believe it's actually over 100X! I bet most people's guess would also be off by 1 or 2 orders of magnitude. Even outdoors in the shade, it is over 50X brighter than indoors. (For specific numbers and comparisons, see: https://www.ncbi.nlm.nih…
That's only correlation, light brightness has nothing to do with myopia. It's more likely from looking at things farther away from the face outside so that there is less light focused on the fovea.
So there are optical properties that are affected by bright light, and your eyes respond to that. What the mechanism is for affecting overall focus range of your eye? I would agree that is unstated/unknown.
[1] Which, as a science project, is fun to demonstrate that a pin hole camera doesn't need a lens for this reason.
Ask yourself, how much brighter is it outside than inside (assuming a sunny day vs a brightly lit office)? Before looking into this, I would have guessed 2X or 3X, but would you believe it's actually over 100X! I bet most people's guess would also be off by 1 or 2 orders of magnitude. Even outdoors in the shade, it is over 50X brighter than indoors. (For specific numbers and comparisons, see: https://www.ncbi.nlm.nih…
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People who have the hobby of photography, might have some intuitive understanding of this brightness difference. If you are shooting with fixed aperture and ISO, your exposure times could easily go from 1/60 indoors to 1/3000 outdoors which is not quite a 100X difference, but close.
This is true, it wasn't until I started photography that I realized how much darker it was inside compared to outside.