I have the same symptoms as most: fluorescent lights and big box stores and computer/phone screens make me extremely disoriented and cognitively slow, give me a headache and a burning sensation in the eyes, and generally make me feel very sick. I think it’s a type of epilepsy rather than an eye issue.

After all these years I’ve more or less given up on a cure and have rearranged my life to minimize exposure, which has helped greatly.

However I was wondering if anyone had experimented with connecting their laptop to a projector and projecting it against a wall. I’ve noticed that my Kindle e-reader is backlit and yet it doesn’t hurt my eyes/head because the light is shining away from me and toward the e-ink screen. Is there a way I could just project my word processor to the wall or to a dedicated projector screen and use it to type documents in Word? This would be a major help as typing for long periods is still something I have to suffer through.

Any ideas are appreciated. I’m confident that we will find a good treatment in the next 10-15 years of medical advancements, but that’s a long time.

Sure, projectors have been around for many years now. Different lamp technologies though, so caveat emptor.

They use a projector at work for seminars and it affects me badly. I normally just listen to the speaker and look elsewhere. I haven't really experimented with different models though.

  • KM likes this.

I tried one of those Epson projectors because they don't use LED lamps, but it hurt my eyes pretty badly. While not consciously visible there was also measurable flicker. And the loud noise - I'm not sure I could work that way, in a small room. That was a $650 model. I think you have to pay much more just to get rid of the fan noise.

What people are forgetting is there are multiple types of projectors. DLP projectors are notorious for using a color wheel that moves "fast enough"to produce color. This also produces noise and onscreen flicker.

https://yourbusiness.azcentral.com/color-wheel-projector-works-2753.html

Some choice quotes from the article

In a one-chip DLP projector, all that the chip can do is either send or not send light – making it black-and-white only. To create color images, projector manufacturers include a color wheel which rotates in synchronization over the DLP chip. As it rotates between red, blue and green, the DLP chip sends the correct pattern of light. Because the images go on and off the screen so quickly, the brain puts them together into one full-color image. This is similar to how the brain perceives the series of still images in a movie as an actual moving picture.

The key drawback of the color wheel is the "rainbow effect." While most people perceive a DLP image as being of continuous tone, some people's brains actually see the different colors being projected separately. This can be especially noticeable where white and black meet – like with a projected spreadsheet of black text on a white background. In an attempt to alleviate this problem, some manufacturers speed up the color wheel, making each individual color show up more times in a second for a shorter period of time. This can make the "rainbow effect" less visible for many people.

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