Optical Illusion Design Disappearing Black Dots Case-Mate iPhone Case

Optical illusion Polka Dot Pattern Design. Your brain thinks there’s a black circle inside each white circle until you focus on that circle and it's solid white. The black circle was never there at all. It's a fun mind blowing brain teaser. An optical illusion is an illusion caused by the visual system and characterized by a visual percept that appears to differ from reality. Black and White dots and gray lines.