131–140 of 345 posts
I wear computer glasses at all times when working, and highly recommend them. It greatly reduces eye strain, and filters blue light. If anyone is looking for a good pair, I buy mine from Gunnar [0] (no affiliation). [0] https://gunnar.com/
I use those and they work wonders.
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I've been using F.lux for over seven years. Advantages… - You have a great deal of control over the blue level. Night Shift's blue level is higher than F.lux's default, and not adjustable. - Flux transitions more naturally as the sun goes down. - More scheduling options, "disable until tomorrow". - the big one: disabling per-app or for full-screen apps. You probably don't want Flux on while watching a movie or bingin…
- Night Shift is disabled for external displays. That's another killer one.
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Because of the way your eyes work. If it is bright, your pupil will be shrunk, to not be blinded by the luminosity. When it is dark, your pupil will be opened wide up. It is this principle that camera apertures are based on. Now if you have your pupil wide open in a completely dark environment and put a 100% brightness screen at ~10cm of your eyes, what do you expect will happen ? Our eyes are made for nature, that m…
Hmm. If I've been in the dark for a while and then pick up my phone, the brightness hurts my eyes for a moment until they adjust to it. When I put the phone down, it takes a moment before I begin to be able to see things in the dark room. Doesn't that indicate that my pupils were initially dilated in the darkness and then constricted when I began looking at my bright phone? I wonder how significant the difference is…
The back camera usually has an IR blocking filter, but often the front camera does not. You can check by videoing an IR led (like from a remote control) with the front camera and seeing if you can pick up the flashing when you activate it.
In addition to f.lux, I also use the Dark Reader Chrome extension[1], which dynamically generates dark themes for every page you visit. It seems to make a bigger difference than using f.lux. 1. https://chrome.google.com/webstore/detail/dark-reader/eimadp...
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I've been using F.lux for over seven years. Advantages… - You have a great deal of control over the blue level. Night Shift's blue level is higher than F.lux's default, and not adjustable. - Flux transitions more naturally as the sun goes down. - More scheduling options, "disable until tomorrow". - the big one: disabling per-app or for full-screen apps. You probably don't want Flux on while watching a movie or bingin…
- Night Shift is disabled for external displays. That's another killer one.
The human lens filters most light at the peak of the given spectrum for free retinal (383nm), and so once you get to 450nm like an LED, the hazard data in the visual range is 100x less sensitive, see Fig 1 here:
https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1751-1097....
It bears repeating that computer screens have Not sure the conversion to white light is correct, and it is unclear to me right now if this much retinal is available in vivo.
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Do you wear glasses? Have you tried an iPad Pro with 120Hz refresh + Night Shift? How much ambient light do you have when using the computer? Is the ambient light natural or artificial? If artificial, what spectrum/type?
Sorry I updated the post as I knew I would leave some things out as I am a mental wreck and this is long and complicated. I don't wear glasses. I have monovision from Lasik done 20 years ago and am starting to have presbyopia in the distance eye but it doesn't cause issues with CCFL displays or reading or anything else. I just have aapprox 3" window 10-12" from my face where neither eye is focusing well but displays…
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We have chemical receptors on our tongue and in our nose for poisons. We have neurons that detect pain. Just because we can sense it doesn't mean it's not harmful.
But those receptors signal something unpleasant - a terrible taste, pain. Looking at blue doesn't cause pain or unpleasantness.
I'm in the process of building a Philips Hue-compatible light therapy LED strip that goes above my bed, and I chose 500 nm cyan LEDs due to this concern. The goal is to have the lights gradually wake me up every morning and help align my sleep cycles, as I suffer from Delayed Phase Sleep Disorder. Figure 3[0] in the paper seems to show that 500 nm is safe, and that melanopsin has high absorption at 500nm, which has i…
Does this mean that consuming alpha tocoferol can combat the toxic effect of blue light? If so, at what dosage?