I'm aware of the video card issue, because there's a guy at DisplayMate who claims that to avoid flicker, the best thing is a CRT with a top quality video card enabling 150 hz refresh rate.
However, how would even the best video card help people whose issue is fluorescence? There are many experts, all of whom emphasize something else. (I.E. some say LCDs are best, then there are Irlen Syndrome experts who advise that color correcting via color overlays is a solution. And of course there are the grassroots people who say they can only use laptops and/or small/dim screens. The common denominator seems to point to the following as best: If it's CRT - should be small-size, dimmed, color-corrected, and video card enabling 150 hz (if this is possible) If it's LCD or laptop - should be smallest screen feasible, ditto, ditto (except maybe for video card) All these may (or not) be enhanced by Irlen overlays or UV filters. Not sure. Finally, despite all the above, I still take John Ott's research very seriously, and maintain that even if there's zero flicker, and even if it's very dim, there may be something about that flurescent color shining through which causes problems. Because I find that to be the case with me, especially when I'm not well hydrated. And I remember in a past job that despite the screens being small, and despite UV filters, I still had health issues. The only thing I never yet got to try is a laptop so I can't speak from experience about those. <-----Original Message-----> From: Garnet Sent: 5/30/2004 11:26:16 AM To: [email protected] Subject: Re: CS>Computer-eye I asked a computer consultant about this and he said it is most often the quality of your video card and not the monitor. I don't know much about them only that most people buy cheap ones, except for the gamers and geeks, who know it is worth the extra $$$ to get a top of the line video card. Garnet On Sun, 2004-05-30 at 02:24, Minni M wrote: > <-----Original Message-----> > From: John Rigby > Sent: 5/29/2004 7:04:18 PM > To: [email protected] > Subject: Re: CS>Computer-eye > > > Hi Minnie and folks, > THIS one is worth repeating in a clickable form: > http://www.vestibular.org/computer.html > > Now we can all feel sorry for those rich people with 21" monitors! :-) > ========== > > Also get a load of this, which shows that LCDs can be as bad or worse. > http://www.cloanto.com/users/mcb/19960719lcd.html > > Regardless of the cloanto conjectures, and despite what the > theoretical establishment claims, the practical experience of > photosensitives, including myself, is: > > It hasn't to do with CRT vs. LCD (either can be bad or good, > depending... > > Nor with electromagnetic fields (my old 14" 1990 non-interlaced CRT > emits EMFs, yet it did not cause me the terrible symptoms that my 15" > Samsung LCD caused. The latter has a quite high brightness & contrast > rating, and even dimming & color correction failed to help. I also > acquired a 17" top quality NEC CRT (year 2002 complete with > anti-static screen etc. etc.). It didn't run higher than 75 hz perhaps > because of my limited video card. Anyway, no matter how much I dimmed > it or color corrected it, it was terrible. Worse than the 15" LCD. I > suspect that was mainly due to its large size, as well as its > brightness. But the old 14 incher, which does NOT boast low emissions, > was the most tolerable of all for me. I also had a KDS 15" CRT which > was quite bright, but had a 13.8" viewing area. And that was more > tolerable than the 15" LCD. So from this I infer that the most > problematic monitors for people with sensitive nerves, are large ones > (even if they're dim). I got similar feedba! ck from other > photosensitive people. They seem to find laptops best. Most people who > are affected, have eye trouble or headaches, dizziness, etc. However, > it caused me way worse symptoms, such as terrible UTIs including > stabbing back pains, bone pain, hip pain, terribly drained/achy > muscles, speeded metabolism, tooth tingling, and a host of more stuff. > I used to think I had repetitive strain injury from typing, but now I > realize it was really the monitor draining me. Even the best monitors > drain me upon extended viewing, and I believe the fault may be > fluorescence (IMO, researcher John Ott is on target). Color correction > fails to help me, and UV shields also fail to completely help me. > <P><font face="Arial, Helvetica, sans-serif" size="2" style="font-size:13.5px">_______________________________________________________________<BR><font face="Arial, Helvetica, sans-serif" size="2" style="font-size:13.5px">Get the FREE email that has everyone talking at <a href="http://www.mail2world.com"; target="new">http://www.mail2world.com</a></font><br><br> </font> </font>
