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Declining eyesight improved by looking at deep red light

sciencedaily.com

41–50 of 117 posts

Re: Declining eyesight improved by looking at deep red light

#41
post #3

Earlier quoted context omitted.

I have one of those aviator LED flashlights that has the red LED for chart reading at night without destroying your night vision. I'm going to give this a try!

Please be careful, and stop as soon as you notice any discomfort.

[deleted]

Re: Declining eyesight improved by looking at deep red light

#42
post #3

Earlier quoted context omitted.

I have one of those aviator LED flashlights that has the red LED for chart reading at night without destroying your night vision. I'm going to give this a try!

Please be careful, and stop as soon as you notice any discomfort.

Might be a good idea to stare at the light reflected from a white sheet of paper. The wavelength won’t change but the intensity (and FOV coverage ) certainly will

Re: Declining eyesight improved by looking at deep red light

#43

If this is real it's a huge deal. But unless they did a pre study release this is P hacked to death. 24 people, then narrowed to only over 40, 20% difference in some frequencies. If science worked we'd immediately re-test this. The cost savings per year could be enormous if it's true.

If no corporation can make billions, it would likely go untested.

There's nothing that drives altruistic development of things that improve peoples' lives. There's only greed-driven capitalism. As a result, many helpful things sit on the shelf.

Re: Declining eyesight improved by looking at deep red light

#44
post #5

This seems dubious. What in world would be the mechanism? On the other hand, I don't see the harm in doing this and it seems easy to replicate. Hopefully others will quickly try to replicate it, and if they do, try to figure out why.

Do a bit of reading on the mitochondria, ATP and the electron transport chain. I still don't understand exactly the mechanism, but it seems that our cells might share some characteristics with photosynthetic cells, and certain kinds of light might increase energy production on a cellular level. From what I remember in bio class, light energy sets off chain reactions by displacing electrons in photosynthetic cells. This paper was from 2008, and they specifically call out low-intensity red light and near-infrared light. Seems like this idea has been floating around for a while now, and somewhat well backed up.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2996814/ https://photosynthesiseducation.com/photosynthesis-in-plants...

Re: Declining eyesight improved by looking at deep red light

#45
post #34
post #32

Earlier quoted context omitted.

When I last looked into it, it seemed they were much more sure. Perhaps Wikipedia editors wanted refs that were more tempered. Any explanation of myopia must explain why it is far more prevalent now. Genetics does not explain that.

Not having a full explanation when there isn't yet one is ok. Genetics is clearly and obviously a major predictor of developing myopia. Any explanation not taking genetics into account is likely very wrong. Or we're goipng to be amazingly surprised! (And maybe in a good way! But sadly, I doubt it.) Genetics explains why being tall is much more prevalent in the Netherlands now. Always had those genetics, now with bett…

Certainly in some cases it is caused by genetics, but from what I've read, the evidence suggests that some other factor is at play for the overwhelming majority of cases. Here is an excerpt from a nature article which leads me to believe that this is the case.

https://www.nature.com/news/the-myopia-boom-1.17120

> East Asia has been gripped by an unprecedented rise in myopia, also known as short-sightedness. Sixty years ago, 10–20% of the Chinese population was short-sighted. Today, up to 90% of teenagers and young adults are. In Seoul, a whopping 96.5% of 19-year-old men are short-sighted.

I don't know how that change is possible in one generation if genetics are to blame. It's possible I'm missing something though.

Re: Declining eyesight improved by looking at deep red light

#46
I have my doubts about results of study with only 24 participants aged 28-72 years where they say SOME people over 40 have seen improvements, why don't tell how many of these SOME people were over 40? We will end up with what, 5-10 people who saw some improvement? That's anecdotic evidence.

Re: Declining eyesight improved by looking at deep red light

#48
post #2

Questions: (a) Does this study sound plausible? (b) Would staring at the correct red color on a monitor work? Or would that not work since monitor colors are generated by mixing R, G, and B pixels and therefore not a pure wavelength? (c) Would it be reasonable methodology to test one eye to see if it improves over the other eye?

C is the correct question to see, if this actually works

Re: Declining eyesight improved by looking at deep red light

#49
post #22
post #16

Earlier quoted context omitted.

Source please.

Frankly my experience with posting sources on HN has almost never been good. It's often just taken as a reason to pick those apart and start a flamewar. My comment above has been downvoted at least 5 times which makes me confident that this is one those times. For what it's worth I have no stakes in anything and no sources at hand. I remember having read at least two different studies about this, but it has been year…

Surely it’s not controversial to post a scientific publication supporting your claims.

I suggest you Google-fu yourself.

Re: Declining eyesight improved by looking at deep red light

#50
post #5

This seems dubious. What in world would be the mechanism? On the other hand, I don't see the harm in doing this and it seems easy to replicate. Hopefully others will quickly try to replicate it, and if they do, try to figure out why.

Mechanisms are not always obvious. 40 Hertz blinking light has been conclusively proven/replicated to reduce amyloid plaques in mice, which may offer a path towards Alzheimer’s treatment. Most people wouldn’t have believed you before the replications succeeded.
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