title: [Phenomenon of apparent rarefaction of the visual field].
mesh_terms: D000221:Adaptation, Ocular; D003118:Color Perception; D006801:Humans; D007088:Illusions; D014787:Vision Tests; D014792:Visual Acuity; D014794:Visual Fields; D014796:Visual Perception
vernacular_title: Un fenomeno di diradamento apparente in campo visivo.