7 ms·

You gotta dig into supplement 1 to find the treatment: ") Input power <100VA, input voltage: AC10V-240V, 50Hz/60Hz 版本号 8 : 2.0，20200120 版 2) Low-level single-

You gotta dig into supplement 1 to find the treatment: ") Input power <100VA, input voltage: AC10V-240V, 50Hz/60Hz 版本号 8 : 2.0，20200120 版 2) Low-level single-wavelength red-light wavelength: 650nm±10nm 3) Diameter of low-level single-wavelength red-light cursor: 7mm±3mm, spot at the observation port: 10mm ± 2mm 4) Light source output power: 2.0mW±0.5mW; At a distance of 100mm: 1.07-1.42mw ...the intervention group are treated with the intervention instrument twice a day from Monday to Friday, three minutes each time, with an interval of at least 4 hours (morning break before school and afternoon break before school), under the supervision of the school teacher/coordinator in addition to routine study and life. All children have a unique corresponding personal account and password. They need to swipe the card and log in the system for verification before starting the intervention device.... the optical energy will stop automatically after three minutes of use, leave the blue eye patch, close your eyes and rest for 3-5 minutes until the light spots before your eyes disappear." ^ So it sounds like the students might even have light spots (temporary blindness)? for a few minutes after the treatment. No use of near-infrared (in the 850nm range), only red light (in the 650 range), so if attempting to recreate at home make sure the red light therapy device is in 650 not red + infrared combination as many are. Though if you Google you can find plenty of studies and resources suggesting NIR can be safe and effective for the eyes as well. I use red and NIR for collagen boosting on the skin but had until now been too afraid to directly expose my closed eyelids w/o protective goggles as I noticed light spots (I use a close-up helmet). Taking the leap of faith and using light therapy to the point that I have light spots for a few minutes after treatment as described in the study is a leap of faith that I'm afraid may be beyond me.

BobbyJo 3y ago
I'm not a doctor, but I believe the mechanism that causes spots isn't harmful. It's a form of exhaustion of the sensing cells and doesn't necessarily damage them. Damage really only happens when you get photon burns, which I don't think is possible with closed eyelids and a conventional light-source.
- arghwhat 3y ago
  However, you must be very careful around possible IR or UV sources as there will be no reflex to keep your eyes closed, look away or close your pupils! You will at most feel the warmth of the light source in the skin of your face, at which point it is likely too late. If intentionally sticking your head in a strong light source, wear eye protection.
- hinkley 3y ago
  There are optical illusions where you stare at a highly saturated color for a while and then close your eyes, seeing a negative of the image you stared at in your eyes. Continuous color sensing is just one of the fictions our brains tell us unfortunately. If you play outside without sunglasses you will find that everything inside looks extremely dark. That's not just pupil contraction, although that plays a role. The photo receptors in your eye have a recharge rate, and very loud colors can exceed that. Your brain keeps adjusting to compensate but you can catch it via rapid changes, like closing your eyes.
- rf15 3y ago
  > It's a form of exhaustion of the sensing cells and doesn't necessarily damage them. As someone with experience in the field: this is half true at best, since you can get the same symptons with proper, permanent and irreversible damage. Claiming it is "just exhaustion" is a dangerous attitude to have.
hackernewds 3y ago
tangent, does the collagen production work and produce healthy skin for you?
- dangwhy 3y ago
  i had the same question. I would guess no otherwise those devices would be flying off shelves like crazy.
someweirdperson 3y ago
> You gotta dig into supplement 1 to find the treatment: "[...] Light source output power: 2.0mW±0.5mW; At a distance of 100mm: 1.07-1.42mw" Elsewhere it said class 2, which would be < 1 mW. A laser pointer. > I use red and NIR for collagen boosting on the skin but had until now been too afraid to directly expose my closed eyelids w/o protective goggles as I noticed light spots (I use a close-up helmet). Taking the leap of faith and using light therapy to the point that I have light spots for a few minutes after treatment as described in the study is a leap of faith that I'm afraid may be beyond me. That's a lot more power. I would avoid anything outside of the visible range and lasers with too much power. For those natural self protection mechanism probably only kicks in when its too late.
RobotToaster 3y ago
I wonder if just wearing glasses with a wratten 29 filter would work? Maybe the hippies were onto something with those rose tinted glasses, lol.
hollerith 3y ago
>if you Google you can find plenty of studies and resources suggesting NIR can be safe and effective for the eyes as well. Infrared in the eye causes cataracts, a fact that is all over Google search results. Workers in steel mills for example are about 26 times more likely to need cataract surgery than others their age, but maybe it is not the near-infrared fraction doing that? I've seen many studies of the effects of red light on the eye, but none of the effects of NIR on the eye, but in avoiding exposing the eyes of experimental human subjects to NIR, maybe researchers are using an overabundance of caution?
- moffkalast 3y ago
  Wasn't that supposed to be UV damage?
  - hollerith 3y ago
    UV might cause cataracts, too.
    - moffkalast 3y ago
      Avoid looking at any kind of light, got it.
      - heyoni 3y ago
        Except the light you can’t see :D
        BrandoElFollito 3y ago
        They light is dangerous too. You do not want to put you had in a microwave oven. There is no hope.
- nomel 3y ago
  You can melt rocks with any wavelength, it really depends on the power, cataracts included (assuming non ionizing wavelengths). I work for hours in my VR headset, with eye tracking enabled...I should probably check up on what that power is. edit: My point seems to have been missed. IR in the eyes will cause cataracts, but it requires extreme power. It's the heating from the extreme power causing the cataracts, not the wavelength of the photons. The wavelength of the photon just helps that power get absorbed in a way that it's not noticed by things like the retina. IR lasers are especially dangerous because you won't look away/blink, or know besides feeling the heat.
EGreg 3y ago
So it requires supplements?
throwaway290 3y ago
Light spots are totally normal. If you look at car lights at night for a few seconds you will have light spots when you close your eyes.

BobbyJo 3y ago

I'm not a doctor, but I believe the mechanism that causes spots isn't harmful. It's a form of exhaustion of the sensing cells and doesn't necessarily damage them. Damage really only happens when you get photon burns, which I don't think is possible with closed eyelids and a conventional light-source.

arghwhat 3y ago
However, you must be very careful around possible IR or UV sources as there will be no reflex to keep your eyes closed, look away or close your pupils! You will at most feel the warmth of the light source in the skin of your face, at which point it is likely too late. If intentionally sticking your head in a strong light source, wear eye protection.
hinkley 3y ago
There are optical illusions where you stare at a highly saturated color for a while and then close your eyes, seeing a negative of the image you stared at in your eyes. Continuous color sensing is just one of the fictions our brains tell us unfortunately. If you play outside without sunglasses you will find that everything inside looks extremely dark. That's not just pupil contraction, although that plays a role. The photo receptors in your eye have a recharge rate, and very loud colors can exceed that. Your brain keeps adjusting to compensate but you can catch it via rapid changes, like closing your eyes.
rf15 3y ago
> It's a form of exhaustion of the sensing cells and doesn't necessarily damage them. As someone with experience in the field: this is half true at best, since you can get the same symptons with proper, permanent and irreversible damage. Claiming it is "just exhaustion" is a dangerous attitude to have.

hackernewds 3y ago

tangent, does the collagen production work and produce healthy skin for you?

dangwhy 3y ago
i had the same question. I would guess no otherwise those devices would be flying off shelves like crazy.

someweirdperson 3y ago

> You gotta dig into supplement 1 to find the treatment: "[...] Light source output power: 2.0mW±0.5mW; At a distance of 100mm: 1.07-1.42mw" Elsewhere it said class 2, which would be < 1 mW. A laser pointer. > I use red and NIR for collagen boosting on the skin but had until now been too afraid to directly expose my closed eyelids w/o protective goggles as I noticed light spots (I use a close-up helmet). Taking the leap of faith and using light therapy to the point that I have light spots for a few minutes after treatment as described in the study is a leap of faith that I'm afraid may be beyond me. That's a lot more power. I would avoid anything outside of the visible range and lasers with too much power. For those natural self protection mechanism probably only kicks in when its too late.

RobotToaster 3y ago

I wonder if just wearing glasses with a wratten 29 filter would work? Maybe the hippies were onto something with those rose tinted glasses, lol.

hollerith 3y ago

>if you Google you can find plenty of studies and resources suggesting NIR can be safe and effective for the eyes as well. Infrared in the eye causes cataracts, a fact that is all over Google search results. Workers in steel mills for example are about 26 times more likely to need cataract surgery than others their age, but maybe it is not the near-infrared fraction doing that? I've seen many studies of the effects of red light on the eye, but none of the effects of NIR on the eye, but in avoiding exposing the eyes of experimental human subjects to NIR, maybe researchers are using an overabundance of caution?

moffkalast 3y ago
Wasn't that supposed to be UV damage?
- hollerith 3y ago
  UV might cause cataracts, too.
  - moffkalast 3y ago
    Avoid looking at any kind of light, got it.
    - heyoni 3y ago
      Except the light you can’t see :D
      - BrandoElFollito 3y ago
        They light is dangerous too. You do not want to put you had in a microwave oven. There is no hope.
nomel 3y ago
You can melt rocks with any wavelength, it really depends on the power, cataracts included (assuming non ionizing wavelengths). I work for hours in my VR headset, with eye tracking enabled...I should probably check up on what that power is. edit: My point seems to have been missed. IR in the eyes will cause cataracts, but it requires extreme power. It's the heating from the extreme power causing the cataracts, not the wavelength of the photons. The wavelength of the photon just helps that power get absorbed in a way that it's not noticed by things like the retina. IR lasers are especially dangerous because you won't look away/blink, or know besides feeling the heat.

EGreg 3y ago

So it requires supplements?

throwaway290 3y ago

Light spots are totally normal. If you look at car lights at night for a few seconds you will have light spots when you close your eyes.