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hi i was wondering if anyone knew what the best type of computer filter screen was to get for an epileptic to stop the comp affecting me so much???
x x x
I don't have photosensitive epilepsy, but I do work in tech support, and if there is anything I can't stand, it's a monitor with a low refresh rate! The refresh rate is basically what causes the monitor to flicker. Flicker causes eye strain and is down right annoying.
The most obvious way to tell if the monitor has a low refresh rate is to face your head toward the monitor and look up. If you can see the monitor flicker in your peripheral vision when you look up, then the refresh rate is way too low!
To adjust the refresh rate on a Windows comuputer, do the following....
1. Right click on your desktop.
2. Left click on Properties
3. Click on the Settings tab.
4. Click on the Advanced button on the lower right hand corner.
5. Click on the Monitor tab.
6. You'll see a thing that says "Screen refresh rate:" Click on the little down arrow on the drop box, and make sure that it is set as high as it can go. It should be set at at least 60 Hertz.
7. Click OK
8. Click OK
LCD screens (the flat panels) have much less flicker than a CRT screen (the big boxy ones). So if you are going to buy a new monitor, then get an LCD.
Thank you very much for advice on changing the Screen refresh rate. I have done this on my computer at home. But unfortunately some of the computers at work (New ones also) there maximum set are 60 Hertz and thatâ€™s not even that on the older ones.
My manager ask me to find out about these "Screen Filters" and will they actually prevent the possibilities of myself or anyone else thatâ€™s new to the office. Who also has epilepsy having a seizure? And do you know if there are different types of screens?
Sorry for all the questions, but any advice would be welcomed.
Thank you very much for the help and advice.
I'm happy to see that my post was helpful. The max refresh rate on flat panel monitors often doesn't go above 60 Hertz, but that is ok because flat screens have very little flicker.
The epilepsy foundation says, "Generally, flashing lights most likely to trigger seizures are between the frequency of 5 to 30 flashes per second (Hertz)."
So I think that 60 Hertz is well within safe range. They also recommend a glare gard. You can read reviews and buy one at New Egg. I've bought a few things from them, and they have excellent customer service, prices and selection.
The link is here... New Egg Monitor Filters
The Epilepsy Foundation Article is here... Photosensitive Epilepsy
Once again thank you for your advice. It was all very helpful. I have now put in a order for a screen filter.
Thank you once again!!!!
You can also change the flash frequency on your computer. Let me forward this to the webmaster who can answer this more intelligently than me!
PLEASE HELP WITH THIS!! I have heard that computer filters will help also and have been looking into getting one myself. PLEASE let us know(and I have never heard of the flash frequency so pls. explain)
hi am looking into this as well, epi help said he/she would contact the web master so keep an eye out for an update
x x x
I'm using a flat-screen monitor, and have not noticed any "flash" to it. I do notice a flash on TV tube type monitors but not enough that it disturbs me. I think if I were to use one more often, it might bother me after a while. Give a flat-screen monitor a try, they are getting cheaper and take up much less space. Oh, and they're flat too.
Thank you very much actually I was looking for something like this!
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A pair of poloroid glasses would be more useful than a screen filter. The glasses not only cuts the glare, but you can carry them around and not rely on others to have the filters. The glasses a are also great for tv and night driving(esp in the rain). Now they make clear lenses that change with the light. I have a pair of light blue tinted poloroid glasses that I use for computer and tv and will be getting the clear glasses soon.
Get an LCD moniter because the screen isn't made of glass and that alone cuts the glare factor down.
Lower the contrast and brightness levels....lowering the levels will probably give you a couple of more hours of computer time :) It did for me!
Make sure the room is well lit and take breaks.
If the refresh rate is your problem I would go digital!!!
Analog LCD monitors have refresh rates.
The digital LCD monitors don't have a refresh rate, but you need a graphics card that supports digital through DIV or hdmi. If the flicker rate bothers you, the digital moniter is the way to go. They cost a bit more money than analog LCD but the picture is much nicer than analog.
About four years ago, I developed a seizure disorder and since that time, I've noticed that using a computer at night really bothers me - I get headaches and feel a lot of tension, my mind almost feel like it "revs" up, etc. Anyway, I did some research and discovered that some amino acids - especially GABA and Taurine - can help reduce seizures.
I tried them both, and they've been remarkably helpful for me. In fact, I really shouldn't be on the computer this late (11pm) - at 10pm I started to get bothered by looking at the screen and I popped a 500mg taurine and I'm feeling perfectly fine once again. My mind is calm, no tension, etc. Might want to give it a shot and see if it helps. (Taurine is really safe - in fact, your body is supposed to get plenty from your diet (mostly from animal protein), but lots of studies have shown that people with low seizure thresholds are often lacking in this important nutrient.)
Where can i get completely free downloads for my mp3 player when I am using a public computer with filters?
The refresh rates of the VGA(analog) LCD monitors are different than the CRT monitors. There isn't a FLICKER refresh because the backlight is constantly on.
The digital(DVI) LCD monitor has a much better response time so there is less strain on the eyes. AS long as you do digital to digital and don't buy a converter(VGA to DVI).
A warning to anyone shopping for any type of LCD monitor: some of the backlights are florescent light. Check the specs of the monitor if you have a problem with florescent light.
Some people recommend LCD monitors for their reduction in the FLICKER. This is WRONG. FLICKER and REFRESH in monitors are two DIFFERENT things which may have ta similra source.
Here is some information if you suffer from headaches or dizziness from monitors, INCLUDING LCD monitors. This may not be 100% accurate, and more research is needed, but this makes sense to me:
(1) CRT monitors provide light from glowing phosphors. To simplify, phosphors glow when a picture signal is sent to them. Therefore, whenever the computer "refreshes" the video signal with a new picture, the phosphor will change state and glow. Thus, the image refresh rate on CRTs directly affects the imaging AND the visible flicker of light on the screen (because the image IS the light source). Different refresh rates may be better/worse for different people. Generally, higher is better in reducing flicker (you should see numbers like 85hz and above).
(2) When a video signal refreshes an LCD, tiny liquid crystal molecules in the flat panel line up to allow varying levels of light to pass through. This NOT a light source. This is a LIGHT FILTER and affects the imaging only, NOT the light source or "flicker". The standard 60hz refresh rate on LCD's has nothing to do with the visible flicker because the crystals hold their state once set. It is the BACKLIGHT, typically fluorescent backlight, which is causing the flicker. *****FLUORESCENT LIGHT IS NOT ALWAYS ON.***** Some fluorescent light can flicker based on some multiple of the frequency of the electric current. Some people are badly affected by such fluorescent light.
(3) DVI does NOT have a better response time than VGA. DVI is restricted to 60hz. VGA signal can go higher. But as I noted above, it is not likely the imaging refresh rate on LCD which causes flicker given the nature of the technology. It is the flicker of the light source. So comparing the response/refresh rate of DVI/VGA is like comparing apples to oranges: CRT REFRESH RATE relates to the imaging and the light source, while LCD REFRESH RATE relates ONLY to the imaging.
This information is from my own research. I may be wrong. Please look into this yourself if you suffer from headaches, dizziness, etc. from LCD monitor use. With more and more cheap LCDs hitting the market daily, this is a subject ripe for research.
See this site on people affected by LCD monitors and flicker:
As for the idea that a DVI connection has less flicker, thats not a straight forward explanation either. DVI ports are compatible with Progressive-Scan technology that has less flicker than interlaced technology, which is what old-fashion connections use. The difference in flicker is small, and I doubt it will make any difference for people with flicker sensitivity. DVI monitors now support flicker rates above 60hz. Perhaps they didn't when they first came out.
There are several mechanisms that cause flicker, but the top two that matter is the pulsing of the phosphors in a CRT monitor and the refresh rate. There are obviously a lot of different elements involved and there is no point into splitting hairs and going into technical details. The bottom line is that LCD screens have far less flicker that CRT screens, and you can also reduce flicker by raising the refresh rate on your monitor. The flicker on an LCD with a refresh rate of 60-75hrz should be invisible to the human eye and most likely won't bother anyone's brain.
That website is kinda crazy. Somehow I doubt LCD screens cause fibromyalgia.