Any source on the blue light filtering not working? I didn't get the filter on my latest glasses and feel like my eyes fatigue more quickly, but I'm aware that could just be aging or a change in monitors, lighting, etc. which have occurred since my last subscription update.
The lenses I'm talking about are the ones that are completely or nearly completely clear. Here's a photo of the "Everyday" blue light lenses on Zenni Optical as an example. They are marketed as blocking 16x more blue light than normal lenses. https://static.zennioptical.com/marketing/campaign/blokz/202...
How could it be blocking any significant amount of light in the visible spectrum and still be clear? I'm sure the "16x" claim is true, but normal lenses block a small amount of light. 16 times nearly zero is still nearly zero. It's just a marketing gimmick.
Zenni Optical also sells lenses which are orange. I'm sure that actually does block a significant amount of blue light, but I also know from my experience visiting optician offices that many consumers are buying the first kind.
I'm aware of studies which link blue light to eye fatigue and disruption of the circadian rhythm but I'm skeptical that blocking 5% of blue light or whatever could have a perceptible medical effect.
With that being said, I don't feel strongly about claims like the 16x thing if its actually true (just a bit misleading). My comment above was mostly about the claims that they prevent macular degeneration which there is no evidence for. And regulators are right to jump in before it gets too bad, otherwise why stop at macular degeneration? Just say your lenses prevent hair loss and skin cancer while you're at it.
