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LCD and your eyes

M

mlahatte

Member
I remember reading a long time ago (before LCD's were out) that if you had your monitor set lower than 70hz refresh rate that it would hurt your eyes. That it would cause bad eye strain. I remember always getting headaches and blood shot eyes from looking at a monitor too long that was below the 70hz refresh rate. Is that true with LCD's? I notice that all LCD's are 60hz refresh rate. I just went from a CRT that was at 100mhz refresh to a LCD now that is 60hz refresh and I'm noticing my eyes starting to hurt, get blood shot and headaches now. Any thoughts on this? Or am I just crazy? heh
 
Sounds to me more like your eyes are sensitive to bright light or you have poorly calibrated settings. I've been using a LCD for the past 7 years (first LCD was 17" by dell, now using a 22" from acer) and haven't had any problem with eye strain or pain caused by it.
 
the reason why the CRT would hurt your eyes is because the screen wasn't "always on". Each pixel would turn on and off very very quickly. LCD's, however, have a constant backlight, so the pixels arent constantly blinking on and off... they just stay on. The refresh rate on an LCD is for syncing purposes - it doesn't affect the way each pixel operates.

The problem you're having is either mental (not that you're crazy - just suggesting a placebo effect) because you THINK 60 hz will hurt you, or like quicksilverX1 said - you're sensitive to bright light.
 
It could be the brightness that's bothering you, for me and many others its actually the opposite as CRT refresh rates used to lead to strained eyes or headaches over long periods of use.
 
Originally posted by: Throckmorton
LCDs don't flicker like CRTs so the refresh rate doesn't matter. THat's why it doesn't affect you
Click to expand...

I know that, but he said since he gone down on 100Hz refresh rate CRT to a 60Hz LCD, its been bothering him and he is trying to make a correlation between the refresh rates and his vision problems and head aches.
 
Makes sense yall. I think its combination of brighter light and the fact that i'm prolly crazy AND that i have a habit of leaning forward to look at screen. My old monitor was a 21" CRT my new one is 28" widescreen LCD. So the lcd is a LOT larger than my old monitor but i still have habit of leaning forward to view stuff.
 
yea I have the same problem, went from a 17" CRT usually 85HZ + to a 22" LCD at 60HZ, even with brightness turned down, in games the 60HZ definatly bothers my eyes.
 
The brightness is the most likely explanation. Most LCDs I've seen come way too bright out of the box for normal desktop use, but you can easily turn down the brightness.

I find 60hz on LCDs to look a bit jerky, especially with mouse movements (as opposed to 75hz), but I can't see how that should hurt your eyes.
 
Yes I have turned the brightness down on the monitor, and in windows, I get no issues there. If load up WoW however, if the brightness isn't high enough the colors look awful.
 
Originally posted by: chessboxin
Yes I have turned the brightness down on the monitor, and in windows, I get no issues there. If load up WoW however, if the brightness isn't high enough the colors look awful.
Click to expand...

You can adjust WoW differently than your desktop if you want to. In the video settings in WoW there is a checkbox for "use desktop gamma". Uncheck this box and you can adjust WoW's gamma to your liking.
 
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