Related Experiment Video
Updated: Jun 4, 2026

Optical Coherence Tomography: Imaging Mouse Retinal Ganglion Cells In Vivo
Published on: September 22, 2017
[Palinopsy as a manifestation of neuro-ophthalmological disorders]
Abstract:
Palinopsy or perseveration of a pre-seen image is impaired visual perception as preservation or repeated occurrence of a visual image of an object after its disappearance from the field of vision. Patients with palinopsy are rather frequently encountered in neurological practice; however, they may first visit an ophthalmologist in some cases. The author describes a few cases in which palinopsy was the first manifestation of cerebral arteriovenous malformation, ischemic stroke, and multiple sclerosis, as well as a case of visual perseverations while using narcotic drugs. The correct evaluation of a patient's status and the determination of the scope of additional studies are of great importance in this situation.
Related Concept Videos
Photoreceptors and Visual Pathways
Prosopagnosia
Accessory Structures of the Eye
Glaucoma: Overview
Focusing of Light in the Eye
Multiple Sclerosis l: Introduction
