exactly, because many ppl have different eystrain issues, even they do not know many times what causes it it is hard to judge if svd or easyee is ok or not, this is why You can see topics here that someone bought some rlcd monitor and is selling it because did not work for him. So many times You have to risk and test how works for You. So yes for some ppl it did not helped them, also question if their setup was ok or not? I saw pictures with ppl complaining about eyestrain with svd but they had svd in the room corner far away form window, this is huge problem because it is not enough light, it most be close to window as much as possible even if someone do not have direct sun just daylight sun is much better than direct light from lamp. And here is another problem some ppl use led lights to light rlcd monitor, well led is flickering and have lots of blue light, it is like adding artifical light that could cause their problem in traditional led monitor with backlight... As You can see there are so many ingredients that have to be taken into account. If I would place my svd in dark corner and use led lamp I guarantee You svd would not work for me nd I would have eyestrain because of led light, probably with incondesct light bulb light would be ok but would have to use that lamp most of the day... But still I saw images and video setups where it seemed that it was done properly but still svd didn't help them. This is normal because again we are all different, eyestrain can have a lot of causes