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    • I was going to get a pair of blue light glasses with these special lenses to protect my eyes. Working in front of the computer all day, I get eye fatigue and dry eyeballs. At night, I stare at my iPhone and iPad, which makes me worry about the blue light even more. 

      But, according to actual doctors like S. Garg, MD listed among "The Best Ophthalmologists" in the US, the blue light glasses don't work. They don't relieve eye fatigue, and there is no evidence or studies that show that blue light from screens causes retinal damage, macular degeneration, or cancer.

      The amount of blue light we get from our screens is incredibly low. We get 30 times more blue light by just being outside, according to John O'Hagan, who leads the Laser and Optical Radiation Dosimetry Group at Public Health England.

      In the hidden camera investigation by CBC (Canadian Public Broadcast service), they've found many of the optical chain stores are making misleading claims to sell these lenses. After this investigation, many of the chains vowed to update their marketing materials and retrain their sales staff.

       What helps eye fatigue from staring at the screen is the tried and true 20-20-20 rule recommended by ophthalmologists. Every 20 minutes, take a 20 seconds break and look 20 feet away.

      To keep our eyes healthy, according to doctors, we should eat a proper diet that includes broccoli, spinach, kale three servings a week. That works!

      Do you have blue light glasses, or have you tried them? I'd love to hear from you..    

    • Dry eyes are due to changes in the mucous membranes of the eye that are mostly caused by aging. You never hear of teenagers with dry eye complaints. The color of light is not a factor.

      Environmental factors can certainly contribute to the feeling of dry, burning eyes - a fan blowing air into your face, or the hot dry air coming from the window defroster in your car can aggravate dry eye symptoms a great deal, as can inhibiting blinking if one is staring intently at a computer screen waiting, watching for a villain to appear. Prolonged intense near tasks can be tiring if one is nearing bifocal age - late 30s mid forties.

      One thing people can do to help dry eyes is to drink more water. It sounds painfully obvious, but dry eyes can be a symptom of mild dehydration. So drink some water. Sterile artificial tears can help a great deal too.

      One other thing I find about prolonged computer use is how high ( physically) is the monitor?? - does it require one to extend their neck in an artificial posture for extended periods. If it makes your neck hurt, move the monitor to a better position. I think laptops in one's lap are very prone to this.

      Like @Vilen said, get up, look far away, look outside and just move around. Prolonged sitting contributes to deep vein thrombosis risks, as well, so it is always a good idea to take a break every 1/2 hour or so and go for a brief walk or something.

      Intense light - sunlight in farmers, sailors, workers, - does contribute to cataract formation, and their is good evidence that intense blue light may contribute to macular degeneration - but not light from monitors at levels most are used at.

    • The claim I most often see is that the light from modern screens affects you ability to fall asleep. Based on personal observations this seems to be true - I will doze if reading a book near bed time, but feel wide awake if reading on my laptop near bed time, and this pattern is pretty consistent. Obviously that’s not scientific enough to hang a decision on, but it has made me wonder about getting blue blockers. Is there any truth to this idea?

    • One thing people can do to help dry eyes is to drink more water. It sounds painfully obvious, but dry eyes can be a symptom of mild dehydration. So drink some water.

      This is counter to what I think: if my eyes are dry than obviously the room isn’t humid enough (if it’s winter time). On the other hand, I probably don’t drink as much in the evening when I’m at home watching tv, so it does make sense that I tend to use significantly more artificial tears then. I’ve added a daily reminder to my phone to drink more water in the evening. I’ll try it for a couple weeks and see what happens.

    • I think there may be some modest data to suggest your experience isn't atypical.

      I must confess, I do not notice any effect of computer monitor colors on my falling asleep.

      I don't like the yellow tones ( blue free ) Apple offers for late evening use, so I disable that facility on my machines. I may just be unique.

      I tend to be suspicious when new things are heavily pushed, marketed, or promoted. Call me a skeptic if you will...🙀

    • I too tried the Night Shift mode on the iOS when it came out. The pitch from Apple sounded like a miracle cure for insomnia. I may be exaggerating, but that was the message I took away.

      After turning Night Shift ON for a week, I didn’t notice any difference in my late night habits. I did get annoyed by visible color shift, when looking at photos and videos. That made editing very difficult and I turned it off.

      Since the first week of trying it out, I left the Night Shift turned OFF indefinitely. It didn’t help my sleep, but instead introduced more friction in my life.

      Here is a screenshot of it turned ON for illustration purposes.

    • My experience too - I experienced no benefit, and was annoyed by the screen color difference and could not use the screen to edit or really even grade images.

      So I turned it ( Night Shift Mode ) off completely, too.

      I haven't missed it at all.

      As I said - call me a skeptic.

      There MAY be folks who feel/experience the situation differently.

      No Problem - if Night SHift Mode helps folks get to sleep more quickly, more power to them.

    • I’ve added a daily reminder to my phone to drink more water in the evening. I’ll try it for a couple weeks and see what happens.

      Okay, so it’s been more than two weeks since I started this experiment and I think that my eyes are feeling less dry in the evening. They’re also feeling less tired in the evening. It feels like my bottles of artificial tears are lasting longer, which is a good thing considering how expensive they are. I drink a full glass of water a couple hours after dinner and another full glass before bed.

      Good suggestion, much appreciated.