This is an optical illusion in which an observer perceives a stationary object to disappear and reappear when the observer moves their eyes. It is caused by a combination of motion and contrast, and is a phenomenon that has been studied since the late 19th century. The illusion is created when
Motion Induced Blindness (MIB), also known as Bonneh's illusion is a visual illusion in which a large, continuously moving pattern erases from perception some small, continuously presented, stationary dots when one looks steadily at the center of the display. It was discovered by Bonneh, Cooperman, and Sagi (2001), who used a swarm of blue dots moving on a virtual sphere as the larger pattern and three small yellow dots as the smaller pattern. They found that after about 10 seconds, one or more of the dots disappeared for brief, random times.