Palinopsia

Palinopsia (Greek: palin for "again" and opsia for "seeing") is a visual disturbance defined as the persistent or recurrence of a visual image after the stimulus has been removed. Palinopsia is not a diagnosis, but a broad term that describes a heterogeneous group of pathological visual symptoms with a wide variety of etiologies. Visual perseveration is synonymous with palinopsia.