Geekzone: technology news, blogs, forums
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.

26 posts


Topic # 22732 6-Jun-2008 15:08
Send private message

I have been using a fairly basic AOC 19" LCD monitor for a year at work and simply feel like it is causing eyestrain. Hard to qualify, but just leaves me rubbing my eyes at the end of the day. I don't have such problems if I'm working off the laptop so it seems sensible that it is something to do with the monitor.

I've read various reports that long-term use of a monitor at 60HZ, which is all this monitor can do, will cause eyestrain.
I've read other reports that the newer LCD monitors only do 60HZ as there is no need to go higher.

Does anyone here have any input on this? Anecdotal evidence, graphic card & monitor suggestions maybe?


Create new topic
1289 posts

Uber Geek
+1 received by user: 319

  Reply # 136003 6-Jun-2008 15:27
Send private message

The first report you read about 60Hz causing eyestrain is most likely about CRT monitors where you can see the flickering at 60Hz .. LCD's work "slower" than CRT's .. basically as a screen of info gets blipped to screen it fades away slower, which gives less flicker ... roughly :-)

One thing you might have though is the crawly pixel thing going on, or a slightly blurry display ... this seems to happen a lot when connecting via VGA to the LCD, with DVI it's much cleaner.   Have a close up look at a verticle line on the screen (like the edge of a window) and see if it shimmers a bit, and also look at rounded edges see if they are blurry.
Those would make you tired after a while.


DRZ  Smarterer


Runnin' and Gunnin'
8155 posts

Uber Geek
+1 received by user: 1047

Mod Emeritus

  Reply # 136004 6-Jun-2008 15:27
Send private message

I run my 17" LCD at home at 75Hz with no issues, have dual 19" WS at work, one is running at 60Hz and the other at 75Hz (for some reason, with the new vid card, pushing the 1st one above 60Hz gives really bad results) - I can see a difference between the two, but do not give me any issues physcially.

Ive also heard that theres no point at going above 60 on a LCD, but why have the option then of doing it ? (Altho, brings in the usual argument of why have a car capabale of doing 300k when can only legally do 100)

CRT's def give me headaches at anything lower than 70Hz.

If you have access to another monitor, then give it a shot.

XPD / @DemiseNZ / Gavin
Corsair Carbide SPEC-02 / Corsair VS550 / G.SKILL Ripjaws X 8GB / Zotac 760GTX AMP! / ASUS H81M-E / Intel Pentium K Anniversay G3258 @3.9Ghz


Internet provided by : Voyager - VDSL 65/28  -  Musical Support by : Like A Storm - Visual Entertainment by : Plex and Steam and Overwatch


91 posts

Master Geek

  Reply # 136217 7-Jun-2008 13:56
Send private message

Another thing to consider is your room lighting.
It's often over looked, but if you have average lighting, it could have an impact on your eye strain.

Can't quite remember what the recommeded Lumin's level for a desk work area is, but it could be a factor.

26 posts


  Reply # 137073 10-Jun-2008 17:04
Send private message

Or it could be that 30 years of extensive monitor usage is finally taking its toll on my eyes, sigh...

739 posts

Ultimate Geek


  Reply # 137086 10-Jun-2008 17:55
Send private message

May be a stupid suggestion but during the day do you take breaks and look away the screen every once in a while? Also the little things like making sure your screen is set up the right distance away from you etc?

424 posts

Ultimate Geek
+1 received by user: 2

  Reply # 137088 10-Jun-2008 18:02
Send private message

What is your pixel size?  That may have something to do with it.  You can calculate diagonal pixel size this way:

Size of screen (which is diagonally) / (square root of  (horizontal pixels squared + vertical pixels squared))

ie my laptop 15.4 / 1024*1024 + 768* 768 = 0.012 inches, multiply by 25.4  = 0.306 mm per pixel.  My eyesight is not the best and this is fine for my use.

Maybe you need (new) glasses?

26 posts


  Reply # 137093 10-Jun-2008 18:25
Send private message

I'm terrible with the micro-pause thing. I've stared at a screen for 12 hours a day for the last 10 years probably with little in the way of micro-pauses. I have followed standard advice in the screen/desk setup though.

21 / sqrt(1680 *1680 + 1050* 1050) = 0.0106 inches, multiply by 25.4  = 0.26 mm per pixel

Looks fine to me, and I haven't worn glasses yet... touch wood.

Phil Gale
1107 posts

Uber Geek
+1 received by user: 44

Red Jungle

Reply # 137240 11-Jun-2008 09:41
Send private message

Looks fine to me, and I haven't worn glasses yet... touch wood.

A slightly different tact.. Have you had your eyes tested lately? it could simply be a case of your eyes needing a little help these days. It's pretty cheap for a standard eye test, I'd thoroughly recommend it to rule out any eye problems.

Red Jungle: we make fantastic software

RSS  Twitter  Facebook  Skype

26 posts


  Reply # 139224 19-Jun-2008 17:42
Send private message

Went to the optometrist. I have 'great' vision, but am a tiny bit long-sighted which means that my eyes have to work a bit harder to focus on near objects all day. She suggested glasses could be an option, but I 'may' only notice a difference if I was wearing them all day. I certainly couldn't see any difference with the test lenses and without. In 10 years I will almost definitely need them, for now it is an optional.
I'll probably do some of the ergonomic things I've learnt along the way, like moving the screen away from the window to reduce that contrast. Thanks all for your input.

Create new topic

Twitter »

Follow us to receive Twitter updates when new discussions are posted in our forums:

Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:

Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:

News »

Samsung introduces Galaxy Note8
Posted 24-Aug-2017 08:50

How Oppo shakes New Zealand’s phone market
Posted 22-Aug-2017 18:32

Recognition for top small business advisors
Posted 22-Aug-2017 17:23

OPPO R11 dual 20MP camera phone debuts in New Zealand
Posted 22-Aug-2017 15:45

Intel introduces new 8th Generation processors
Posted 21-Aug-2017 19:02

Trend Micro launches Home Network Security
Posted 21-Aug-2017 18:38

Avondale College students at top of Microsoft Office Specialist World Championship
Posted 21-Aug-2017 14:11

Garmin introduces inReach SE+ and inReach Explorer+
Posted 21-Aug-2017 14:05

Public Wi-Fi plus cloud file sharing
Posted 18-Aug-2017 11:20

D-Link NZ launches professional Wireless AC Wave 2 Access Point for businesses
Posted 17-Aug-2017 19:25

Garmin introduces the Rino 700 five-watt two-way handheld radio
Posted 17-Aug-2017 19:04

Garmin announces the Foretrex 601 and Foretrex 701 Ballistic Edition for outdoor and tactical use
Posted 17-Aug-2017 19:02

Brightstar announces new distribution partnership with Samsung Knox platform in Australia
Posted 17-Aug-2017 17:07

Free gig-enabled WiFi network extends across Dunedin
Posted 17-Aug-2017 17:04

Samsung expands with connect Gear S3 Frontier
Posted 17-Aug-2017 15:55

Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.

Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.