from Wikedpedia,
In the United States, cataracts occur in 68% of those over the age of 80 years.
Radiation:
Cataracts can arise as an effect of exposure to various types of radiation.
X-rays, one form of ionizing radiation;
Ultraviolet light, specifically UVB;
Microwaves, a type of non-ionizing radiation;
Mr. Lovine’s article is concerned about the 840nm region (microwave) causing damage and thermal cataracts (basically cooking the lens).
i can’t remember who it was earlier in this thread, but one of the forum members suggested closing the eyelids would still provide RLT benefits.
Im skeptical about that claim. The author is not a medical professional, and his comments are about Far IR, which is not what we get from Visible Red Light, that is the topic of discussion in this thread.
“NIR light is safe but effective. Within near-infrared wavelengths, light can penetrate eyes at maximal level, but absorption of light by cornea and lens is at minimal level (approximately 10%)”
also imo
670nm Red is not the only effective wavelength
there are other studies that have shown benefits from other frequencies
He seems pretty smart on the subject and certainly enough to make me wary about what I shine in my eyes. I’m sure the stuff being sold on amazon et al dont really care what other light RLT lamps emit. being old school we were always taught no, no, no the eyes are very sensitive. Then you go to the optician and the first thing he does is shine a blinding white light in your eyes!!
There doesnt seem to be any scientific data on RLT safety in any specific units that I can see even on the forum.
I wonder if there is a cheap meter we can but to check the light on various things like red light torches? The new fad for LEDs in home lighting (now compulsory in UK) seems a bit suspect to me. It just doesnt feel right. The old incandescent bulbs whatever brightness just felt “right” whatever right is, or OK. Then we had tungsten, again doesnt feel right! In my pad the LED lights are awful light. Maybe if they had some kinda shade………
Usually gut instincts tend to work out quite good. Any views?
“The guy you linked to is talking about Far Infra Red” which we may well have if we buy a lamp from a dodgy source. Seems strange the scientists when conducting these trials dont state too clearly what the source is and isnt. Hence we now have 1000s of supposedly RLT lamps being sold cheap without any regards for safety or effect.
there is zero perception of heat when I use my 730nm or 660nm LED lights that run on one AA and one AAA respectively.
I do not use maximum output either
some of my reading is that any perception of heat from Red Light is a cause for concern that there is excessive intensity
by contrast, my normal white light LED flashlights, when used at high levels make the body of the light noticeably warm, or approaching uncomfortably hot to touch
as far as I understand it, Red Light is safe because, or as long as, there is no perception of heat.
My red lights produce Zero perception of heat, so I feel safe.
The guy on the redlight site suggested to be used with #5 shade sunglasses which are in essence welding googles etc but surely they should also have a red glass or does it matter?
Hey! Sorry for the late reply. Mine is the standard aluminum body. They all have the same electronics within, just different body materials: titanium, brass, copper, etc.
These are outfitted with SST-20DR which produces 660nm light. I don;t know the science behind red light therapy, but I can tell you it makes my eyes feel better after just a few seconds. Just be sure to have the D4V2 on the lowest of the low before looking into it. Then you can increase a little bit.
Hey! Sorry for the late reply. Mine is the standard aluminum body. They all have the same electronics within, just different body materials: titanium, brass, copper, etc.
These are outfitted with SST-20DR which produces 660nm light. I don;t know the science behind red light therapy, but I can tell you it makes my eyes feel better after just a few seconds. Just be sure to have the D4V2 on the lowest of the low before looking into it. Then you can increase a little bit.
Just ordered some Cree XP-E2 emitters from Digikey. 455nm Royal Blue, 525nm Green and 730nm Far Red. These will be going into some Convoy S2+ Hosts in a 3up config. With the D4V2 SST20 660nm I already have, this should make a nice Light Therapy Kit.
There is another eye health thing I saw about raw pineapple or bromalain supplements. Apparently you can use it to clear eye floaters. There is this strange taiwanese study and anectdotal evidence it works. http://www.jofamericanscience.org/journals/am-sci/jas150419/03_34649jas150419_17_30.pdf
- Common sense again just cant beat it.
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