I'm am looking for the name and cause of an optical illusion that I
see when looking at a flatscreen computer monitor. I specifically want
the exact name and exact cause (if it is known). I will now describe
the optical illusion that I see.

When I look at a flatscreen monitor (like the one on my laptop
computer) I see a faint pattern that takes up about 2 degrees of my
vision (in the center). It happens most notibly when the screen is
showing a big white area. It looks like a slightly yellow circle with
the bottom-right and top-left quarters cut out, leaving these corners
looking even more white than the background.

After a few seconds, the image fades. I assume this is because my eyes
adjust to what I am seeing.

When I turn my head 90 degrees or put my glasses on (which have an
anti-reflective coating), the image is inverted, so the bottom-right
and top-left quarters are yellow and the top-right and bottom-left
quarters are white.

It happens in both eyes and on every flatscreen monitor I know of, but
not on CRT monitors.

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Clarification of Question by bildstein-ga on 09 Mar 2005 22:04 PST

I am short sighted and have astigmatism in both eyes and I wear
prescription glasses.