Very interesting. Didn't take too long before seeing faint yellowish blobs. The only problem was tilting my head too fast, made my neck joints creak. Slowing

Very interesting. Didn't take too long before seeing faint yellowish blobs. The only problem was tilting my head too fast, made my neck joints creak. Slowing down was better, it didn't take more than modest offset (say 25 degrees) anyway once knowing what to look for. It worked differently on two computers. One is a fairly recent MS Surface Pro 2 tablet, the other an ancient Dell D630. The display on the Dell is TN, and not as blue as the IPS screen of the SP2. The effect was a little easier to evoke with the Dell, though its screen color made the yellow less distinct but the blue counter-color more visible. Occasionally I experience aura of migraine, in one form appearing as blobs of color moving around the visual field. (Not necessarily yellow, can be any color.) Maybe it's a reason I've never noticed the polarization effect before, the faint yellow/blue spots just got lost in the noise.