Optical Illusions

This illusion is happening because of the light sensitive cells in your retina called rods and cones.

In your periphery you have far fewer cones to detect colour. The pink dots stimulate these few cones and soon they become tired. They stop sending signals to your brain so you no longer see the pink dots.

When you move your eye to look directly at the pink dots, you are stimulating different ‘fresh’ cones – which send signals to your brain and suddenly you see the pink dots.

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Drunkensatyr said:

They are opposing colors. The rods and cones in your eyes "burn out" diffrent colors.

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