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L. Scott Brooksby, DDS, CFII,ATP,A&P, MEI

2022 Taylor Cutoff Rd

Sequim, WA 98382

702-274-6700

Check out our Sequim dental office at drbrooksby.com.

Below you see a rotating array of blue crosses and 3 yellow dots. Now fixate on the centre (watch the flashing green spot). Note that the yellow spots disappear once in a while: singly, in pairs or all three simultaneously. In reality, the 3 yellow spots are continuously present, honest!

If you move your eyes around the yellow dots do not disappear, but if you fixate on the green one they do.

According to Michael Bach, "Steady fixation favours disappearance, blinks or gaze shifts induce reappearance. All in all reminiscent of the Troxler effect, but stronger and more resistant to residual eye movements."