[fruttomma]

I was at a friend's house. He has a flourescent light that sorta flicker. But it flickers fast enough that you barely notice it, except me. Any time any object moves under that light I can see multi-colored trails. Every time I moved my hand I would see like these red and blue afterimages.

I was thinking about this because I was looking at a white sticker on the side of my work PC. I noticed as I was starting to look away from it that after it reaches a certain point in my peripheral vision I see a blue line on the left, and a yellow/red on the right. Sorta like when a TV's convergence is off.

Does anyone else have this? I get DLP rainbows really bad. Even with the LED samsung sets I can see rainbows. Now for the rest of the day this sticker is going to be bugging me. I can see it just out of the corner of my eye when I look at my monitor... so for the rest of the day I'll be concentrating on that damned blue line on the left side of the sticker.

My wife doesn't have any problems with our DLP set. No rainbows, and she doesn't notice what to me looked like a minor convergence issue (reminds me of the sticker on the PC). Her vision is naturally better than 20/20 and there's absolutely nothing at all wrong with her eyes. So I'm wondering if I'm not just a little bit messed up.


Ok, so the lines on the edges of white only happen on a black background, and only on vertical edges. Someone test this for me with white paper on a black background. Looking straight at it its near impossible to notice, but at maybe at like 35 degrees I start to see it clearly. I don't need drugs to amuse myself, I'm naturally messed up.

Ooh, and its left blue right yellow/red when I turn me head left, and its blue right and yellow/red on the left when I turn my head right. This is kinda cool. I'm so not getting anything constructive done today at work.


Edit: And no, I'm not on drugs. :P I wonder if they would help though...

[DP5Ups8o]

if not on drugs, get high... [thumbup]

[chuecaloversvv]

You don't wear contacts do you? Sometimes I have halo and rainbow effects due to them.

[Feflyinvelf]

You don't wear contacts do you? Sometimes I have halo and rainbow effects due to them.

Can also happen with glasses as well.

Glasses are more prone to the red/blue on the edges of hard lined objects. This has to due with the way our red/blue/green receptors aren't in perfect alignment, the glasses cause a distortion which can bee seen usually on TV's at the edges of our central vision. Search for the term Chromatic Aberration, here's a wiki http://en.wikipedia.org/wiki/Chromatic_Aberration

Contacts are more known for halo effects. If you look at a white street lamp in the distance does it have a blue ring halo? Bright lights from behind an object tend to overshadow the object if it’s dark causing it to appear black. Halo effects can sometimes be minimized by going with a larger diameter contact lens.

Don't know about the trailing rainbows, but it could be possible because florescent lights cycle faster than our color vision can see, but our peripheral vision is mostly colorless and has a faster "refresh" rate.

This is why you can usually see a CRT monitor flicker at the corner of your vision, but when you look directly at it doesn't flicker anymore.

These symptoms can all be attributed to the halo effects of a silent migraine, also known as an eye migraine. I have them from time to time, one or both eye's feel like they pulsing or you can feel your heartbeat, and suddenly hundreds of blind spots appear in your vision, enough to make it impossible to read because one eye is missing so much of the letter your mind can't recognize which letter it is.

[johnuioyer]

are you color blind?

i am to the extreme and this happens to me a lot. along with what the fruity one said about white street lamps have a VERY distinctive blue halo around them (almost so that i dont see the white)

just an idea, but i have the same issue a lot too, but i also used to do a lot of drugs, so i do not know if i broked myself or not.
________
trichome

[fruttomma]

Glasses are more prone to the red/blue on the edges of hard lined objects.

That could very well be it. I'm extremely nearsighted. I can't check if it happens without my glasses, because the sticker is like 2 feet away.. and at that distance its blurry.

Its provided me with nearly an hour's worth of entertainment. This job makes my brain hurt.


Maybe I should try my contacts. I don't wear them because I haven't yet found a pair that doesn't bother my eyes.


Not colorblind though. My memory is so bad that I can't really recall night driving very well, even though I did it last night. :P I think I do get the halo effect sometimes. Not really any huge discoloration issues with light though.


Its just weird that I've never noticed this before. I've been wearing glasses for 10 years.