pseudo-randomly for as long as the observer cares to look.<unk>  (MIB) is a phenomenon of visual disappearance or perceptual illusions observed in the lab, in which stationary visual stimuli disappear as if erased in front of an observer's eyes when masked with a moving background. Most recent research has shown that microsaccades counteract disappearance but are neither necessary nor sufficient to account for MIB.
Motion-induced blindness
Congenital cataract
Toxic amblyopia
Vitreoretinopathy
Cat eye syndrome
Macular corneal dystrophy
Phacolytic glaucoma
Infiltrative ophthalmopathy