TheraSpecs
Thank you so much for checking!
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I'm talking to a guy on eBay and we are trying to determine if the screen assemblies he has are the old CCFL backlit style. (He doesn't know, and I was worried that some refurbs would swap for a new panel)
JTL Oh. Forgot to mention my mother bought me the TheraSpecs indoor+outdoor bundle ($300) Due to being sick and all that I really haven't had a chance to test them.
Today I decided to go into town to where my father works (which has ok but not the best fluorescent lighting, office building constructed circa 2000-2005) The good news is that I got no headaches whatsoever - which is big news for me.
This is an old post. I would like to know what is your current opinion about Theraspecs glasses. Do they really help out with regard to fluorescent lighting? Right now I am quite okay as to computers, I seem to be able to use pretty much anything, but fluorescent lamps in the office are killing me. I have some cheap blue light-blocking UVEX glasses and wonder what the Theraspecs differ by. Do they contain more than one filter or just a longpass one? Has anyone tried to look at what light they actually let pass, using a spectrometer? Thanks.
I found Theraspecs helped with lights, but not with displays. Since I have other mechanisms for dealing with lights, I returned them (they were pretty pricey).
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AGI That was a long time ago. I now have less problems from fluorescent lights with the special medicine I mentioned.
I still have them but I suspect I scratched the darker glasses by accident 
AGI I have some cheap blue light-blocking UVEX glasses and wonder what the Theraspecs differ by. Do they contain more than one filter or just a longpass one? Has anyone tried to look at what light they actually let pass, using a spectrometer? Thanks.
Something to try at some point. Unfortunately I don't have a spectrometer.
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Gurm I have other mechanisms for dealing with lights
Which other mechanisms? Simply avoiding using "bad" lamps? Thanks.
@Gurm @JTL How about reading on paper wearing the Theraspecs? Is it pleasant? It certainly depends also on the brightness in the room, but I wonder how much light is blocked by the filter (multiple filters?)?
Gurm Wow, then if you add a fake palm tree, you will feel like on a tropical beach, have you tried? :-)
Jokes apart, on top of those tricks do you wear Theraspecs glasses? I did not try with a wide-brim hat, but what I noticed, and my spectrometer confirmed, is that even if I turn the closest ceiling lamp off I still get harmful light from the other lamps a couple of meters away. Even if I have a a window wall on one side which is closer to my desk than the other lamps, the brightest features the spectrometer shows are from the fluorescent tubes :-(
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Wrap7c uses the Ventus frame by 7Eye. Tint is nothing special from my understanding. Has the number 47 in it I think. it's pinkish again I think. Search Google for florescent lights and migraines. It should show up.
AGI It's the tint. Theraspecs are nothing special, they're just high-quality tinted glasses. 47 is the color number - there are lots of others. There are green ones for people who work with LED grow lights all day, and red ones for people who work with medical lasers. They all have tint numbers.
Gurm It's the tint. Theraspecs are nothing special, they're just high-quality tinted glasses. 47 is the color number - there are lots of others. There are green ones for people who work with LED grow lights all day, and red ones for people who work with medical lasers.
Do you know what the tint is supposed to do? An optometrist proposed me a solution which costs ~ $ 400 with a basic frame: Nikon lenses cutting blue light with the possibility of adding a tint and maybe a transition to sunglasses. The lenses look completely different from the crappy orange googles I had purchased for 10 bucks on Amazon. They appear very clear, so I guess the mechanism by which they filter the blue is different (probably some anti-reflective coating). The guy recommended a pink tint, however, he was unable to provide a plausible scientific/technical reason for the choice. I thanked and said I will think about it.
I then read the article posted by @tfouto
tfouto Anyone tried those glasses? They are pink tint.
I am curious about them.
I really do not get from the shown transmission curves of the pinky and gray lenses why one or the other would work better against fluorescent light. They do not seem to target any specific wavelength. Does anyone know?
Do they just help photophobic patients, who benefit from reduced light intensity being still able to read clearly, or patients with...what was it called, Irlen syndrome?
I will visit an eye doctor, possibly tomorrow, to get her/his opinion too, but any thought/insight is appreciated. Given how vulnerable to fluorescent light my eyes have become, I am tempted to purchase but I would not want to spend half a grand on something useless. Thanks!
AGI There are new lenses that block a LOT of blue light. One has an orange tint because the material itself is orange. The other is clear. The materials themselves block blue light, not a coating or special layer but the actual polymers used. This is next-gen lens tech, it will be on my next set of lenses.
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Gurm Thanks. Looks like you too are recommending them. Can you use them nicely to read on paper or on screen for extensive time?
My concerns are:
- I have not understood if flickering from fluorescent lamp is my problem. If different wavelengths flicker differently and the blue flickers more, then those glasses could help. Otherwise I am skeptic.
- The light getting in from the side and the top. I was not shown laser-safety-googles-like frames, at least by that optician
15 years ago I was recommended some neutral lenses with anti-reflective coating to eliminate glare from monitors and to not get bored by lights from other cars while driving, but later on a different optometrist told me they were useless. And that is what I thought too pretty much.
Everything is now so expensive, from mobile phones to lenses. Screening options out is really difficult from a technical and a cost standpoint :-(