Feeling dizzy or nausea after using iPad

Menneisyys wrote:

I too hate such LED bulbs and have ordered and very thoroughly tested LED bulbs that produce even light (read: no 120Hz strobing).

Perhaps I missed something in my fifty years in the field. How can you eliminate 120Hz strobing when using 60Hz AC power?

I had to discontinue using iPad 3, Magic Trackpad, Magic Mouse, and the trackpad on a MacBook Air due to the symptoms produced after many years of exposure.

ALL Apple touch products broadcast radio-frequency energy directly into the nervous system. iPads use a 200KHz square wave pulse that fires into your fingertips sixty times a second.

Multi-touch just looks like magic because the antenna grid glued under the glass is practically invisible. However, make no mistake, it's not magic. It's a form of low-powered radar, and constitutes a form of dirty electricity.

If you have a radio that can pick up on the 200KHz range (or up to 800KHz AM), you will hear exactly how dirty it actually is.

I no longer recommend any touch product that uses radio pulse energy, but Apple's are by far the strongest and produce the worst symptoms to someone like myself who's become sensitised due to prolonged usage.

LED strobing, the "heartbeat" of the touch screen as it clears itself regularly, the noise of the chips inside, and the digital radios, the speaker magnet, all these contribute to the emissions signature of an iPad but by far the most sensitising is the electrical interface with your body that allows the touchscreen to operate.

I've got the same problem. Just bought the ipad and noticed a feeling of sickness. If this persists and I can't even type on the thing to take notes for classes then the item is totally useless. Not sure whether it's the scrolling issue or the led, but Apple needs to fix this as it will eliminate a sizable portion of consumers who look to the ipad to do actual work, not just play games. Apple, can you make a simple product that allows folks to read for hours without eye strain, check email, and type notes? Simple. Plenty of academics will buy this.

Same thing here, the ipad causes me severe eye strain and headache. The same happened to me with the iphone as well.

Apple should fix this. I hear a lot of people complaining, i am not sure anymore that only a small minority faces such issues.

I think I figured out what the problem is, at least for me. I believe I'm getting some kind of "simulator" or motion sickness folks get who play a lot of 3D games. The inner ear and the eyes are not in concert so think I've ingested something poisonous, thereby making my brain think I'm hallucinating. I think it's being caused by the way the apps magnify and shrink, as well as the speed of the scroll. That's also probably why I don't get sick when I'm on my laptop (macbook) as these effects are not there, and also why I don't feel sick when I just watch a movie on the ipad as it's just one stable source of motion. That basically means engineers need to offer an alternative so that those of us affected can touch the buttons without them having the magnifying/minimizing effect as well as the fast and then slow to stop scrolling, which makes it so nauseous for those of us affected. I still stand by my earlier suggestion about making an ipad for academics.

Hiya, if you only get sick when you use the touchscreen, it's probably the electricity generated in your jerves travelling to your brain. The digitiser works not by touch, but by distance. It emits a pulsating radio signal that your body then absorbs, triggering the touch detection. You can trigger it without actually touching the glass. It's strong enough to show up on any AM radio, just put the antenna near the screen before and after you touch it. Your fingertips and brain are connected, so the drone of it is sufficient to produce headache and discomfort.

dxgriffiths wrote:

Hiya, if you only get sick when you use the touchscreen, it's probably the electricity generated in your jerves travelling to your brain. The digitiser works not by touch, but by distance. It emits a pulsating radio signal that your body then absorbs, triggering the touch detection. You can trigger it without actually touching the glass. It's strong enough to show up on any AM radio, just put the antenna near the screen before and after you touch it. Your fingertips and brain are connected, so the drone of it is sufficient to produce headache and discomfort.

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Five tickets easily fights angst-ridden Klingons.

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Well, mock as much as you like... It only takes 5 minutes of reading to verify that's how the technology works. It's not magic, it's capacitive coupling and virtual ground. You absorb the radio energy, it detects a touch. And it seems extra responsive because the Multi-Touch mode actualy switches on 1-3mm before you hit the glass.

All easily-provable facts.

I´m from Sweden and i bought a Ipad for about a month ago. But i can´t use it because i get the same problems as many others. After about 15min it feels like i´m going to puke and my head gets dizzy + eye strain. I´m almost sure that it has something to do with the scrolling/animation + glossy screen.

I bought a matte screen protector and then i could use it about 40 minutes before I got sick.

I know that many have problems of led monitors and that's because they often use the pwm (pulse width modulation) to dim the screen.

But I do not think ipad uses pwm when one lowers the light on it.

Have tried to pull a pen back and forth on a white background.

But I can not see any strobe effect that can be seen on most led monitors.

I hope Apple is listening and doing something about the problem.

If you could get the opportunity to turn off animations and gain control of scrolling, i think the problem would be solved.

This might be a bit of a pain, but if you can't return the ipad, at least for now, try to look away or close your eyes when you touch a button, or are scrolling. I've heard this helps and some people can get "used" to it and be able to work with the ipad. That said, I don't think humans should have to change their natural body instincts for a machine, but you can see if that might help. I agree with you that if Apple allows for users to control scrolling and turn off animation/magnifying function, the problem would be solved.

Thanks, I'll try your advice and see if it helps. I've never had these kinds of problems with a computer screen. When i got these problems with the ipad, i began to suspect that i had vision problems. I was and examined the eyes for about a week ago, but i had perfect vision.

I think we have the exact same problem, which means many others probably suffer from the same. I also do not have any problems on my macbook whatsoever. I also read that for those suffering from motion sickness, it is possible to beat it by gradually letting your body get accustomed so maybe try to use the ipad a little bit every day and then increase after a few days or so. I'm planning to do the same. If this doesn't work, then I'm going to have to return the device. Too expensive to have lying around! Let me know if you see any improvements, and I'll do the same. Good luck!

And, as much as it'd be nice to ignore the mechanics of the touchscreen technology itself in causing the ill effects, and blame it on animation or some other factor, the reality is that the new iPad's glass is much thinner than before and the signal is therefore stronger. Previous iPads did not force as much energy into the user's fingers (although any seems like too much to me), and it has to be treated as a potential cause of these problems.

Bathing your fingertips in a scratchy, pulsing radio field to see how mucb is absorbed is not the "magic" most people would expect, in my opinion. I won't be replyin any further, this thread seems poorly moderated and populated with too many ****-takers.

Apple, please clean up your technology.

The Ipad uses a an ordinary capacitive touchscreen.

It´s the same technology used in most mobile phones. It does not send out any pulsed radio waves to detect motion.

It's the changes in the capacitance on the screen that is measured. A DSP then calculates which part or parts of the screen that is affected.

Here in Sweden there are many who think they are electrosensitive when they get sick of sitting in front of a computer screen.

But most people do not know that the main cause of the nausea/eye strain is flickering. Many people think that LCD / LED screens are flicker-free, but they're not.

There are a very few screens that is. Most manufacturers use unfortunately PWM (Pulse Width Modulation) to control the brightness instead of analog dimming.

Some people are more sensitive to flicker than others, and that makes them bad.

I heard that Pure View screen may solve the problem of flickering. I heard Nokia will build some phones with such a screen and claims it is flicker free.

Personally i have tried the iphone 3gs, HD7, and Galaxy SII. They all gave me eye strain and headache, although for the Samsung phone i had heard that it flickers less than other phones due to the Amoled screen.

Bottom line i cannot use any touch screen or a led baclight monitor without getting eye strain and headache. I cant figure out what is causing these symptoms. Maybe flicker is the cause.

Cheers