Thinking about colored glasses reminds me of an article which mentions/claims that flourescent light is partly blue light which is part of an ignition that causes a phosphor layer to glow to finally get a broad spectrum of colors. The article says because of the afterglow, the parts of the spectrum that are not blue flicker much less - because they come from the afterglowing phosphor and not the fast blue ignition reaction. This might put some sense into why those glasses can offer some relief in some cases.

Edit: Found the article and realized I got it slightly wrong but the effect is the same: the blue part flickers more.
"The red emission from the phosphor has a slow time decay, and so the red light has a low amount of flicker (the red light is integrated over time). The blue emission is very fast and has the most flicker."
http://www.conradbiologic.com/articles/SubliminalFlickerII.html

    KM the conrad article gets at the EMF factor as well, which I don't think we've dug into yet. i just ordered a meter..

      18 days later

      tfouto stay away they are garbage. They were meant for fluorescent lights. I own a pair. Pretty much did nothing. You feel like death if you wear them in a led environment. I can't believe they are still selling them and acting like they actually do anything with their fake stories.

          Doesn't help me at all with with our problem. Sometimes I feel worse, probably because they will dilate your pupils

          11 days later

          I had a pair of FL-41's made for my by the Moran Eye Center and mailed out. They didn't help at all. I had 2 sets of Irlen lenses made, 1 set cured me for about 3 months then stopped working, the other set did nothing.

            6 months later

            AGI Seems the Z1 have been renamed to "F133". They seem to block all but blue (I didn't find the exact wavelength range). Interesting, since we mainly focused on blocking blue so far.

            • AGI likes this.

              ensete

              From which company ? I have them from Theraspecs. It does help me a bit sometime, especially the evening.

              For the Irlen ones, which color ? Did you have the proper test with an Irlen Specialist ? What made you make a second pair of irlen glasses with different color ?
              Have you tried Irlen Overlays on your computer screen ? Because I have problem only when reading on a computer screens (eyes strains, nausea, blur vision ...) but I can watch movies without problem. I had a pair of purple/rose/blue mix, tinted Irlen Glasses made, after I've got tested by an Irlen Specialist, and it didn't help me much when using it. But I've got a big improvment, when I put Irlen Overlay (purple and or rose) on my computer screen.

                jasonpicard stay away they are garbage. They were meant for fluorescent lights. I own a pair. Pretty much did nothing. You feel like death if you wear them in a led environment.

                I inquired at Theraspecs. Their answer was

                The FL-41 tint is designed to filter the most harmful wavelengths of light for individuals with migraine and photophobia, shown by research to be at and around 480 nm. This is within the blue-green area of the light spectrum, which is very prevalent in LED and fluorescent lighting.

                I have not yet tried their glasses (or AxonOptics's) though, because the importing costs a fortune, between shipping and taxes.

                    AGI Theraspecs did absolutely nothing for me. Don't waste your money.

                        AGI I think what this Theraspecs company is doing is terrible. They know darn well their glasses were marketed for fluorescent lights as I think I bought my pair in 2011 - 2010 when LED at least in Canada was barely a thing. There was even some write up about how they blocked wave lengths that CFL's used. A cheap pair of SCT orange glasses off Amazon especially with some black electrical tape and a hat will do the trick of letting little light/flicker into your eyes and completely blocking blue light so much so that you don't even see blue light. It really is a trip the first time you wear them. This December I will have been wearing my SCT orange glasses for 3 years at work.

                            jasonpicard I have terrible pain at school now because of the lights. Just first day today! I have no other options in my life but have been given a second chance with this schooling.. How do you deal with wearing those glasses? Do you get looks? This is the number one thing affecting my future right now. Maybe I just need to suck it up.

                                degen Oh yeah you get looks. Usually most people are reasonable about it. I just tell them I have crazy issues with LED lights and I get can't tolerate them. Everybody is used to me wearing them now so nothing gets said. I get no migraines or eye pain if I wear them in flicker free led areas. I have to wear a hat though to stop the lighting from coming over head. Hopefully your school has flicker free lights. You will still get pain if not unless your not sensitive to flicker. Good luck! If the school uses CFL though SCT orange doesn't really help because there really isn't enough of a blue spike in those lights.

                                • KM replied to this.

                                    jasonpicard Does it still hurt if a small amount of the light indirectly enters your eyes from the sides while wearing the glasses?

                                        KM No I do good with my setup. My work lights are flicker free ( I requested those to by talking to my boss) so unless I take my SCT glasses off I'm just fine. Ever since I figured this out I have had no issues with strength or stamina at home with good screens. I'm sure when I came up with the electrical tape on the sides so no light gets in at first people thought I was crazy. I had to explain it to a lot of people but all my bosses don't understand fully but they get it. I even had to explain to a group of 8 higher up guys why I wanted to request flicker free monitors in the shop. I even got thrown on the spot because my boss told me he had no problem doing it but he needed permission from the higher up guys so I got thrown in a meeting about it. Now we have all View Sonic gaming monitors down in the shop. I find that kind of funny because I was only asking for flicker free monitors. I didn't expect them to go all out. The monitors are less then 200 a piece though so they were going to buy all new monitors for everyone anyways. I find when you explain these things most people don't realize lights and screens are pretty much the same price if you are only talking about flicker so they have no issue with it. It's only when you get involved with those violet chip LED's do things start getting expensive. I saw another one of those violet LED's I believe the company was called Soraa or something like that. The lights are white but it's missing the blue part of the spectrum they were pricey though.

                                            jasonpicard My work lights are flicker free

                                            Are the lights in your working place fluorescent or LEDs?

                                                jasonpicard Thanks! So you are saying that Theraspecs or whatever blocks blue light do not help in case of flickering LEDs, but you do still use such glasses in a flicker free LED environment because at 6500 K there is plenty of blue. Hence your conclusion is that you are sensitive to both flicker and blue light. Is that a correct summary of your condition and findings?
                                                The temperature of my light tubes in the office is 3000 K! I hate talking of feelings, but paradoxically I feel low temperature bothers me more. Maybe I should get a higher temperature bulb up on the ceiling and see how it goes. Yesterday I was in the office until night. It took me ages to write an email. I went home, took a break for dinner, sat under my fluorescent overhead light at home and I was much more performant. That light is clearly more blueish. How come if blue is evil?

                                                    AGI I use SCT orange. I know Theraspecs are a scam and I'm not a fan of them because I think they are scamming people because they used to market them as blocking wave lengths for CFL. I wore my Theraspecs to my work one day and after 1 minute thought I was going die. They don't block any blue light the way they are claiming. This is not really an issue with CFL because it barely has any blue light compared to LED. SCT orange with black electrical tape on the sides and a ball cap so I block light from all sides. When it comes to light bulbs yeah blue light and flicker are my main problems.

                                                      dev