<story><title>Effect of repeated low-level red light on myopia prevention</title><url>https://jamanetwork.com/journals/jamanetworkopen/fullarticle/2804215</url></story><parent_chain><item><author>rngname22</author><text>You gotta dig into supplement 1 to find the treatment:&lt;p&gt;&amp;quot;) Input power &amp;lt;100VA, input voltage: AC10V-240V, 50Hz&amp;#x2F;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&lt;p&gt;...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&amp;#x2F;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.&amp;quot;&lt;p&gt;^ So it sounds like the students might even have light spots (temporary blindness)? for a few minutes after the treatment.&lt;p&gt;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.&lt;p&gt;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&amp;#x2F;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&amp;#x27;m afraid may be beyond me.</text></item></parent_chain><comment><author>hollerith</author><text>&amp;gt;if you Google you can find plenty of studies and resources suggesting NIR can be safe and effective for the eyes as well.&lt;p&gt;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?&lt;p&gt;I&amp;#x27;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?</text></comment>
<story><title>Effect of repeated low-level red light on myopia prevention</title><url>https://jamanetwork.com/journals/jamanetworkopen/fullarticle/2804215</url></story><parent_chain><item><author>rngname22</author><text>You gotta dig into supplement 1 to find the treatment:&lt;p&gt;&amp;quot;) Input power &amp;lt;100VA, input voltage: AC10V-240V, 50Hz&amp;#x2F;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&lt;p&gt;...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&amp;#x2F;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.&amp;quot;&lt;p&gt;^ So it sounds like the students might even have light spots (temporary blindness)? for a few minutes after the treatment.&lt;p&gt;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.&lt;p&gt;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&amp;#x2F;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&amp;#x27;m afraid may be beyond me.</text></item></parent_chain><comment><author>someweirdperson</author><text>&amp;gt; You gotta dig into supplement 1 to find the treatment: &amp;quot;[...] Light source output power: 2.0mW±0.5mW; At a distance of 100mm: 1.07-1.42mw&amp;quot;&lt;p&gt;Elsewhere it said class 2, which would be &amp;lt; 1 mW. A laser pointer.&lt;p&gt;&amp;gt; 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&amp;#x2F;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&amp;#x27;m afraid may be beyond me.&lt;p&gt;That&amp;#x27;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.</text></comment>