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Declining eyesight improved by looking at deep red light

sciencedaily.com

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Re: Declining eyesight improved by looking at deep red light

#51

Post by Markoff »

aaron695 wrote: post #25

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.

SOME over 40, not even all over 40 and SOME of these up to 20%, I guess the others less or no difference, so in the end you end up with individuals you can count on one hand

if they were serious why they didn't try this only on one eye to compare the effect on each person?

Re: Declining eyesight improved by looking at deep red light

#52

Post by mrob »

jodrellblank wrote: post #30
klipt wrote: post #15

Earlier quoted context omitted.

Wow, it even decreases dementia? Crazy https://www.webmd.com/skin-problems-and-treatments/red-light... I guess the new LED bulbs miss a lot of frequencies that were present in incandescent (black body radiation) bulbs. I wonder if we'll see a bunch of "light frequency deficiency" diseases arising as a result.

> " Intranasal Light Therapy involves the simple process of clipping a small red light diode to the nose to illuminate the nasal cavity. Researchers have found that this act initiates the process of healing a large number of health conditions such as high blood pressure, high cholesterol, diabetes, sinusitis, dementia and various viral infections. " - http://www.drgcohen.com/site/healing-approach/intranasal-lig... Th…

[3] does not claim that humming increases production of NO. It claims that humming improves air exchange between the parasinuses (which produce NO) and the nasal cavity. This results in increased exhalation of NO. Production was not measured.

Re: Declining eyesight improved by looking at deep red light

#53

Post by [deleted] »

kart23 wrote: post #44
dwheeler wrote: 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. Th…

[deleted]

Re: Declining eyesight improved by looking at deep red light

#54

Post by mindviews »

alister wrote: post #29
alister wrote: 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?

Another question: (d) How much does the precise wavelength matter? The study used 670nm but also mentions the range 650-1000nm. Lots of red-light gadgets are available on Amazon but how do you verify the wavelength? I was thinking of an optical spectrum analyzer[1] but at $28,000 they are shockingly expensive. Even with raw LEDs bought from a reliable electronics distributor like Digi-Key, it would be nice to be able…

I got one of these $25 kits in a physics class that gives you the eyeball version of the fancy digital spectrometer: https://shop.sciencefirst.com/starlab/kits/5800-cardboard-sp...

Re: Declining eyesight improved by looking at deep red light

#55

Post by GrayShade »

eecc wrote: post #42
briefcomment wrote: post #12

Earlier quoted context omitted.

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

How about putting a diffuser (like a sheet of paper) in front of it?

Re: Declining eyesight improved by looking at deep red light

#57

Post by lsiebert »

alister wrote: 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?

This is the hex value for 670 nanometre red.

#ff0000

Per https://academo.org/demos/wavelength-to-colour-relationship/

Re: Declining eyesight improved by looking at deep red light

#58

Post by kwhitefoot »

suby wrote: post #45
harry8 wrote: post #34

Earlier quoted context omitted.

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 yea…

What proportion of the population had their eye sight measured 60 years ago in China (or anywhere)?

Is it certain that we are comparing like for like? Many more people everywhere do work that requires a lot of reading now than 60 years ago even in the northern Europe so perhaps myopia is more often diagnosed now simply because it is more of a problem in the modern environment.

Re: Declining eyesight improved by looking at deep red light

#59

Post by kd5bjo »

danielbln wrote: post #56
wincy wrote: post #6

I have Phillips Hue and turn them 100% red at night as we're going to bed, sometimes for a few hours, no idea if it's helping my eyesight though. Been doing it for a few years.

Why are you doing it?

There have been persistent claims that cool color-temperature (bluish) light in the evenings disrupts sleep quality. I unfortunately can’t remember if that comes from rigorous studies or pop psychology.

Re: Declining eyesight improved by looking at deep red light

#60

Post by discordance »

danielbln wrote: post #56
wincy wrote: post #6

I have Phillips Hue and turn them 100% red at night as we're going to bed, sometimes for a few hours, no idea if it's helping my eyesight though. Been doing it for a few years.

Why are you doing it?

Not op, but I actually remember reading about a study where exposure to red light before waking up can help with addressing alertness after waking.

Here it is: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6506010/

I also know that astronomers use red light while ‘scoping as it doesn’t impact the eyes sensitivity

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