Previous 1 50 51 52 53 54 Next 2,338 Replies Latest reply: Nov 14, 2015 9:51 AM by Technarch Go to original post Branched to a new discussion.
  • eeeechuta Level 1 (0 points)

    Just like to add my two cents:


    I run an iPhone app development company and I have owned a multitude of Apple devices over the last few years, including a 2010 MBP (LG), 2011 unibody MBP (LG), 2012 rMBP (LG), 2012 rMBP (Samsung), 2010 MBA, 2011 MBA, as well as iPhone 3GS/4/4S/5, and iPad 1/2/3.


    Of these, only the 2011 MBP (LG) and iPad 1 exhibited the problems that seem to be mentioned in this thread. I just couldn't look at those two displays for more than 5 minutes without getting a very odd form of eyestrain. It's like my eyes weren't able to relax and focus on the screen.  Nobody I showed it to could understand what I was talking about.


    Funny thing is, the 2011 MBP used the exact same panel model (determined through the terminal command) as the 2010 MBP that I have, but I was able to look at that model for hours without end.  The color temperature between the two were vastly different however, so it's possible that the backlight was a differnet part.


    I've also seen iPad 1's that had a vastly different color temperature, but also seemed easier on the eyes than my own model, once again indicating a different backlight.  The iPad 1 that I couldn't stare at was used by my wife for many hours without any complaints, indicating that this problem only happens to particular individuals.


    I never had any other problems with the rest of the Apple devices I owned, but I will say that some of them were more comfortable to stare at than others.  If I had to rank them in order of preferece, it would be



    2012 rMBP (Samsung)

    iPad 2

    iPhone 4S




    iPhone 5

    iPhone 3GS

    iPhone 4

    2011 MBA

    2010 MBA

    2010 MBP

    iPad 3



    iPad 1

    2011 MBP (LG)


    My only conclusion is this: Apple uses different backlights in their products, sometimes even with the same product line.  Some backlights are more comfortable than others.

  • CoreLinker Level 1 (0 points)

    Stefan, an oscilloscope would give you a square wave reading with PWM LEDs, not sine wave. The LED array can also be one sided, which is how I think they are usually made these days.


    And lots of things were suggested so far in this mammoth thread, too many to count.

  • StefanD13 Level 1 (0 points)

    I expected as well more square than sine... but I blame it on the rise and fall time of the phototransistor.

    Could be also voltage is variated as well. I read about a recent monitor (I think Samsung?) which is doing PWM but not by fully turning off the LEDs, but only variating voltage.

  • LovesDogs0415 Level 1 (0 points)

    I think we have more than 100 or 200 users who suffer. 

  • Exandas Level 1 (0 points)

    I understand that there are degrees of discomfort due to screens. In my personal view and during my research during the past two years i have asked people that have just changed their screens from ccfl to led (laptop or desktop) and without explaining them in advance i ask them if they experience in general any headaches or eye strain. Most of the people admit that they do have more headaches during a period that usually coincides with the period they use the new screen. Most of them believe that its due to wifi or that their pc needs some kind of adjustment to wifi, while in my view its due to the screen.

    Although the discomfort in most of those people i asked was not so intense to cause them to drop their mac, it seems there is something there that did not exist with the ccfl screens.


    I have also asked the salesmen in my local IT store that sells Macs, and there are people that return their new mac laptops because they believe the screen is not functioning correctly and is causing them eye strain. I have not followed up on such cases, but it is my personal view that they will continue to suffer because the issue seems to lie in the new led technology.


    I am not claiming that i possess the explanation for all the sufferers in this forum nor i have a used a significant statistical sample to support my claims, but i think there are signs around us that engineers at Apple should consider regarding the new screens. Even if the discomfort is minor, it seems that there is something that the human body does not accept and responds to it in varying degrees. Maybe it is the blue light the leds emit, who knows. But it is my personal view that when most of the ccfl screens will be replaced with the new technology screens the number of people complaining about eye strains, headaches, or even nausea will start to increase.

  • LovesDogs0415 Level 1 (0 points)

    Pardon me for posting an indirect question.  However, I know that people on this thread know how crucial it is to keep the machines we can use working and you may also be able to help me.  I posted a thread here because I am having problems with my hard drive.  I am sort of freaking out because I don't want to lose my laptop.  If you are interested in looking at a question about hard drive capacity, please look here:


    If not, please accept my apology for posting here.


    Happy Holidays

  • Slunce Level 1 (0 points)

    In past I contributed to this thread as I suffer from the same as most of you. I also noticed that I still have discomfort using a CCFL external monitor with my MBP (as opposed to using PC laptop with external monitor). I find that hard to believe myself and it is obviously difficult to make conclusions as one does not keep all the hardware all the time to be able to compare them all next to each other.


    Anyway, I bought PA series NEC monitor (PA231) which is not comfortable and gives me headache within an hour. It is (supposed to be) a good quality screen however I am consistently unfortable with it.


    I did not give up and bought another screen - EIZO SX2262W and whilst I have reservations I can confirm that it is headache free. I was surprised by this fact since I knew the screen had backlighting frequency of just under 100Hz. Anyway, it is OK even on minimal brightness.


    The good thing (same as with PA231 NEC) is that the lowest brightness is quite low - especially compared to any 24'' screen I have seen or tried. I really do not know what kind of people can stare at 350cd/m2 (well at anything above 80-90 really, I usually use 40cd/m2 or less which is achievable with the 22'' EIZO or the PA231 screen and only go to 50-60cd/m2 as a minimum for developing photos).


    Best regards,


  • Gurm42 Level 1 (0 points)

    Slunce, I am very glad you found a good solution for your eyestrain.


    I wonder if there are any sub-$500 monitors left that will work well for us, as the Eizo you mentioned starts around $750 (USD) and goes up from there, depending on source.


    My personal struggle continues, went to the Ophthalmologist and it turns out I probably need both a bump in my distance vision AND progressive "computer" lenses, so I'll hold all judgment until I've made that transition.


    - G

  • Slunce Level 1 (0 points)

    There is LG Flatron 22'' CCFL one I use at work. I bought it because had at my previous employer's place and it was totally ok. With the MBP it is less comfortable but still OK. I got it for something like 130 EUR. The monitor is really poor for anything except for office application but it does the job at work and would be OK for ordinary user.


    I got the EIZO for home use due to my passion in photography. Wanted to go the cheaper way but the NEC is not OK for me. I rushed into the EIZO as they discontinued 22'' size in their line-up and the new range of EIZO is all LED. They sell the SX line now wiht a discount.

  • rohanzsta Level 1 (0 points)

    Does anyone take any medication at work to reduce the migraine/dizziness? I've only heard people talk about Ibuprofen in this thread, but I was wondering if anyone is taking anything else that works? Are there any non-prescriptive glasses that help but don't look too crazy (e.g. do gunnar glasses really help)?


    I'm starting a new job next week and the first few months will require a lot of pairing/training on a macbook/cinema display, which means I'm just going to suck it up and try to find a way to outstand the pain.


    Has anyone ever tried these? The reviews look good but the tint color looks a little funky. I wonder if they have a more clear pair... _1_1?ie=UTF8&qid=1356546466&sr=8-1&keywords=gunnar+glasses+eyestrain

  • ashj05 Level 1 (0 points)

    Hi guys, thank you for all sharing your insights- this thread has helped me a lot.


    I bought an iPhone 5 and I noticed some eystrain/tingling that only appeared to be getting worse, so I returned it for an iphone 4s. I'm not getting as much of that same tingling feeling with the 4s, but I don't feel 100% comfortable with it either.


    I'm currently debating between switching all the way down to the iPhone 4 or taking the Samsung Galaxy SIII (I'm on Sprint).


    My question to you all is, do any of you experience pain with the iPhone 4s/4? I saw the specs online and I appear to get different responses (some show TFT LCD display while others show LED-backlit).


    If anyone's been through this process with their phones, any insight would be much appreciated. Unfortunately, I think I'm going to switch to a Galaxy...

  • Conan_BC Level 1 (0 points)

    I tried Galaxy S3 but experienced the same eye strain. I ended up getting Galaxy Note 2 instead, and my eyes are much more comfortable with it. (It helps to set screen mode to "Natural" in the setting.) I think there are two reasons. First, Note 2 has AMOLED plus which has a different LED arrangement than usual AMOLED screens. Second, Note 2 has a bigger screen which makes reading easier.

  • drunkenFlower Level 1 (0 points)

    where can I get it?

  • LovesDogs0415 Level 1 (0 points)

    The original post was in 2008, and still we have no help.  I just returned from the Apple store to have my hard drive replaced on my mid-2009 Macbook.  I looked longingly at the new computers, computers I will never own.  I spent a few minutes on the news 15" MacBook Pro with anti-glare screen, just hoping something had changed.

    Didn't take long for my eyes to feel uncomfortable. 


    Thanks to this forum, I know I'm not crazy and I also don't expect anyone in the Apple store to be able to help me.  Their eyes glaze over when I mention the discomfort from the LED backlit screen.  "Here's that crazy lady with that weird issue, again," is what it feels like. "Can't you get some of those computer glasses," one asks.  I mention this forum, but my suggestions that they check it out fall on unconcerned ears.  I feel like an outsider in the Apple Store---I can't buy any of the pretties.


    Okay, my point: Is there any way to find out how many of us are on this list?  How many of us suffer?  We have had only 169,000+ views and 777 replies, both very small numbers in the Apple world.  As my computer gets older and older, I get panicked about piecing it together to keep the LCD screen.  There was a post about a petition on Change dot com, but I couldn't open it.  The note at top of this forum about a branching discussion is not accessible.  Anybody know what that is or why it's not accessible?

  • ashj05 Level 1 (0 points)

    Thanks for the insight, Conan_BC. This makes me even more worried about what phone I should purchase.


    I'm very curious what everyone else on this thread uses for phones? Which models do you find the easiest on the eyes?

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