Why Does the iMac hurt my eyes?

Discussion in 'iMac' started by miscend, Jun 19, 2010.

  1. miscend macrumors regular

    Nov 5, 2009
    Its funny. I have three desktops in the house - two are PC's. None of the other ones hurt my eyes. I can use them for many hours. But whenever I use the iMac for more than an hour my eyes start to hurt - especially when reading.

    I've had this white iMac for three years now. When I first bought it, I found the screen far too bright6 so I always have it on the very lowest brightness setting. But I've never really gotten accustomed to the screen. Its recently started to develop the infamous vertical lines, so I dunno if that maybe that's what's hurting my eyes?
  2. jjahshik32 macrumors 603

    Sep 4, 2006
    Because YOUR TOO WEAK!!

    J/k, I'm sure its maybe due to the iMac's brightness being too bright? How bout turning the brightness down.
  3. miscend thread starter macrumors regular

    Nov 5, 2009
    I've tried. Its always on the lowest setting.

    Maybe its the gamma settings?
  4. hallaisen macrumors regular

    May 28, 2006
    mine does it too, and i get headaches the day after ive been on my computer a lot. i always turn down the brightness unless its really bright in the room, and am also curious why its like this. i expected such a high quality monitor to cause less problems with headaches and eye pains. i even make sure to take lots of long and frequent breaks when im using it, but still get problems.
  5. TMRaven macrumors 68020


    Nov 5, 2009
    Altho I can't be too sure of it, it might due to the way the operating systems set the refresh rate of the screens. Windows sets the refresh rate of the lcd to highest possible, while osx leaves it at either 60 or 72. Higher refresh rates from the lcd will cause less wear for your eyes.
  6. Ace134blue macrumors 6502a


    Sep 17, 2009
    How about you read what he says next time.... He said he turned down all the way already......................
  7. peakchua macrumors regular

    Apr 12, 2010
  8. Vylen macrumors 65816

    Jun 3, 2010
    Sydney, Australia
    I think if you're finding your monitor to be too bright, despite lowering it down to its (default) lowest, you should probably stop sitting in the dark ;) Turn on some lights :p

    Aside from that, how far are you sitting from your Mac? Compared to other computers? Do you think things are a bit more blurry on your iMac's screen? Slightest blurriness can cause headaches especially when reading since you are concentrating harder to see characters on a screen rather than images.
  9. mrwonkers macrumors 6502


    Oct 31, 2004
    4get shades its a an ugly clunky piece of crap: What U need is Blacklight its free and allows you to dim your screen to your hearts content to much more varying degrees than your iMacs screen brightness control allows.


    once installed open Blacklight preferences and set it howeva U like

  10. aristobrat macrumors G5

    Oct 14, 2005
    Don't know if this will help you, but F.lux is free and will vary the hue of your monitor based on the time of day. Brighter during the day and more warm at night.

  11. NATO macrumors 68000


    Feb 14, 2005
    Northern Ireland
    That's not the case unfortunately, LCDs don't have a refresh rate as such due to the nature of the technology, they would only have an update rate from the graphics card (typically 60Hz) but that wouldn't be the same as the refresh rate of a CRT display which would cause noticeable flicker if set too low.

    I wonder if the problem the OP is experiencing could be related to the LED Backlight? It seems that some people seem to have encountered eye strain when Apple changed to LED-backlit displays, could it be the nature of the light compared to the old CCFL backlit displays?

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