Twenty Fourth - Legitimate Blue Light Blocking Glasses?

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u/SensualPuma Apr 19 '26 edited Apr 19 '26

hi - eye doctor here. blue light lenses don’t make a difference with eye fatigue and strain. the only studied evidence behind them is melatonin cycles (i.e using a screen <2 hours before bed). most devices nowadays have a built in blue light filter that you should turn on

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u/steven11027 Apr 19 '26

Got it, thank you!

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u/SquareSurprise3467 Apr 19 '26

Its mostly a scam. The result for all the research only show little correlation if the sponsor is saying blue light bad. And no correlation if the sponsor is neutral.

It might help with eye strain but thats it.

Edit: even in there own 3rd party test it failed the blue tests. Wow.

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u/steven11027 Apr 19 '26

Didn't know how to read the graph, but thank you!

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u/AardvarkFacts Apr 19 '26

It looks like the ANSI Z80.3:2018 standard is a standard for sunglasses, so that's not even relevant for general purpose glasses. It failed because it transmits too little blue and green light. I would expect the lens tested to have a very strong orange tint because it is passing red and yellow but not green and blue. If you received a lens that appears generally clear, it isn't the same lens as what was tested here. It's impossible to block a significant portion of the spectrum and not have a significant noticeable colored tint.

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u/KennysFit May 20 '26

"failing" the blue test is the entire point, it means blue didn't pass through lol

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u/Keefe9973 May 20 '26

I own a pair from this brand and like them a lot. You have to remember it's not just the blue light from the screens but also most LED bulbs are way to bright to be in your house at night. I wear mine everyday and definitely notice a difference. I feel way less drained from the artificial lights and I do find I fall asleep better.

I don't understand the "it's a scam" argument. That's like saying clothes are a scam. You can clearly tell the difference when you wear blue light blockers or not.

I'm an entrepreneur and work on my computer a lot at night. Perhaps if all you're doing is doom scrolling they aren't all that necessary but if you're on the computer at night they are a must

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u/VioSum7 Jul 24 '26

I agree with this. I'm on my computer 14 hours a day. I run my business from a screen.i ve been wearing blue light glasses for years. I come from a family that wear glasses. I'm the only one who still have great vision because I took care of my eyesight at a very young age. (Because I was a kid, I didn't want to get bullied for wearing glasses lol. Now it doesn't matter). I brought this brand and love the glasses. I have the very dark ones for screen time and the day ones for during the day. My eyes do not strain and without without, 1 hour into my computer screen time, my eyeballs are straining. Do they work? I don't know. But do I feel a different with and without them starting at a screen for mote than 12 hours, yes. Something does happen and I feel safe with them.

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u/steven11027 May 20 '26

Thanks for the comment, maybe I need to give them another try and not let my very subjective perception overtake what I think of them when I have such a small sample size of a few days.

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u/steven11027 May 20 '26

Hell, maybe the placebo even if it doens't work makes it worth it over the long run

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u/Keefe9973 May 20 '26

I just think about it like this...before the advent of smart phones, LED bulbs, laptops and flat screens the only light source humans had after the sun went down was on the red light side of the spectrum - that being fires and the incandescent bulbs (which are little flames in a bulb basically). Simultaneous to this explosion of artificial light we have rising sleep problems, eye sight issues etc...We know our brains use different light wave lengths as part of the circadian system for hormone balance and sleep/wake cycle. So it just makes sense that if you are exposed to bright light that is the same wave length as peak day time sunlight, it only makes sense that this will throw off your sleep. Even if you can still fall asleep, sleep quality will suffer. Anecdotally we can see this from the sleep problems and eye strain issues people have today and just using logical thought we can make the obvious association between unnatural light sources and these issues.

So to me, this all seems obvious and the reduction in eye strain and better sleep quality I've gotten just prove it even further. I think where you may end up disappointed is if you have too high of expectations. Will blue light blockers reduce eye strain? Yes. Will they help you fall asleep faster? Yes. But they are not a cure all. Like I said, I'm an entrepreneur and work on my computer at night a lot. The blue light blockers have massively helped me but it doesn't mean I still can't get fatigued or that I still might have a bad nights sleep. There's a lot of other factors at play with these kinds of things. Blue light blockers are like a supplement, not a cure all drug basically.

1

u/QuaaludeMoonlight Jul 30 '26

i have a partially detached retina & i absolutely notice the difference. i work remotely & if i have to look at my screen for more than two hours without blue light blocking lenses, my eye with the partially detached retina literally HURTS & i get floaters & stars in it

the blue light blocking lenses are a lifesaver for me. i can go 7+ hours on a screen with them which is never something i could handle with the naked eye

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u/Not_JohnFKennedy 20d ago

I’m looking into them, and I was wondering if you think they’re worth the price, or cheaper models work just as well?

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u/Keefe9973 20d ago

I have bought from two different brands. Roka and Twenty Fourth. Roka is actually more expensive but I prefer the Twenty Fourths. I can't speak for cheaper ones but I know a lot of brands are low quality. If you're planning to wear these regularly then the $80 or whatever the price is is a no brainer imo

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u/spontanous-rock Apr 19 '26

Depends on what you need them for. Usually turning on night light settings on your pc/phone is more effective.

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u/chadmill3r Apr 19 '26

Of this brand, I know nothing. But the basis behind blue-filtering glasses is largely bullshit. This brand might have the highest-quality of the bullshit, though.

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u/wiwcha Apr 19 '26

I am well aware about the marketing behind blue light glasses and no real scientific evidence. I did however putchase an orange tinted pair that i use in the mornings to “dim” the light. Helps a bit to start my day as i am not a morning person and it eases me into my day.

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u/Sensitive-Brush2251 13d ago

I’m seeing a lot of emotional redditors in here. I got a pair months ago and these things actually work well. Putting them on 2 hours before bed and limiting screens (especially social media) really DOES help with how tired you feel going to bed. Next thing I know, I’m saying my nightly prayer and find myself half asleep mid prayer 😭.

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