this post was submitted on 21 Feb 2025

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Small study suggests dark mode doesn’t save much power for very human reasons (arstechnica.com)

submitted 1 week ago by [email protected] to c/[email protected]

13 comments fedilink hide all child comments

LCD screens, dominant in laptops and tablets, tend to get turned way up.

top 13 comments

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[–] ch00f 19 points 1 week ago (2 children)

Was it ever about power?

[–] ChickenZenphyre 7 points 1 week ago (1 children)

At first, yes. But as i grew older, dark mode is needed because it helps with the eyes.

[+] [email protected] -12 points 1 week ago (1 children)

Except it doesn't.

https://www.healthline.com/health/is-dark-mode-better-for-your-eyes

[–] [email protected] 5 points 1 week ago* (last edited 1 week ago) (3 children)

Your own source disagrees with you:

###Are there benefits to using dark mode?

The research into dark mode’s effects is far from conclusive. But anecdotally, some people claim that using dark mode does benefit them.

####Dark mode may reduce eye strain

Fans of dark mode claim that it can increase the amount of contrast between the text that you’re reading and the background.

This would, in theory, make it easier to read on your device. Since reading for long spans of time on a screen can lead to eye strain and dry eye, it seems like it might be worth giving it a try to give your eyes a break.

####Dark mode may cut down on blue light exposure

Blue light exposure does have demonstrated side effects, such as difficulty sleeping and eye strain.

Dark mode may cut down on your exposure to blue light, but you may also achieve these results by turning down the brightness of your screen after dark, especially when the space around you is dark.

[–] [email protected] 4 points 1 week ago

"Fans claim it may offer an improvement" isn't exactly a definitive statement.

From what I understand the research does actually show little to no improvement for either mode, which is actually a bit odd because we know the eye performs better the brighter the surroundings (Since it causes the pupil to contract, increasing the depth of field)

Maybe it's a sign that we just need more research into the effectiveness in interfaces.

[–] [email protected] 2 points 1 week ago

Screw all that, dark mode is better for my brain.

Light mode makes my pupils dilate more which probably corrects my vision a little better, But I'm not constantly seeking out dark mode on all my applications for nothing. I feel better reading text in dark mode than I do in light mode.

[–] [email protected] -3 points 1 week ago* (last edited 1 week ago) (1 children)

The research into dark mode’s effects is far from conclusive. But anecdotally, some people claim that using dark mode does benefit them.

Studies on whether dark mode and other blue light filtering solutions work to mitigate blue light exposure are inconclusive. However, it seems dark mode is more likely to affect sleep rhythm than eye strain.

[–] [email protected] 2 points 1 week ago (1 children)

You made a categorical claim that is not substantiated. In fact, you're even ignoring evidence to the contrary solely because it's anecdotal.

As the idiom goes, absence of evidence is not evidence of absence.

[–] [email protected] -1 points 1 week ago

Just because the evidence is not to your liking it doesn't mean there is not any evidence.

[–] [email protected] 6 points 1 week ago

everything possible on my phone is dark mode. i am prone to migraines tho.

[–] [email protected] 7 points 1 week ago

Yes yes ok... I know.

On the phone. Where power saving is important. Where oleds are commonplace now. Where individual pixels turn off when fully black. I think a pixel that is off will use less power than one that is on, no?

But beyond all that, isnt it just a preference? Some people like white mode, others like dark. We dont all have the same eyes and brains.

I personally dont like light mode one bit and go the extra mile to get dark mode on my devices, but i dont care if someone else uses light mode. Cut it out, let people do what they like.

[–] [email protected] 5 points 1 week ago

I have Dark mode at lowest brightness on my phone at night. Soon as I go to anything that loads a stupid white background it feels like flash bang.

[–] satans_methpipe 3 points 1 week ago

I've never understood the histrionics over 'dark mode'