Related Experiment Video
Updated: Oct 13, 2026

How to Build a Dichoptic Presentation System That Includes an Eye Tracker
Published on: September 6, 2017
[Parinaud syndrome : a diplopia unlike any other]
Lydia Belhabib1, Anne-Catherine Chapelle2
1Service d'Ophtalmologie, CHR Citadelle, Liège, Belgique.
Abstract:
Sudden-onset diplopia warrants an emergency management in ophthalmology. A binocular, vertical and persistent diplopia, should raise suspicion of a central lesion, particularly within the brainstem. We reporte the case of a 53-year-old man, who presented with acute vertical binocular diplopia. Ophthalmological examination revealed a bilateral elevation limitation, characteristic of Parinaud's syndrome. Brain magnetic resonance imaging identified a right-sided ischemic midbrain infarction, and further cardiovascular work-up demonstrated a patent foramen ovale causing a right-to-left shunt.
More Related Videos
Related Concept Videos
Prosopagnosia
Visual Agnosia
Cranial Nerves: Types Part I
Olfactory Nerve (Cranial Nerve I)
The olfactory nerve, or cranial nerve I, is unique as it is purely sensory and dedicated to the sense of smell. This nerve originates in the olfactory epithelium of the...
Glaucoma: Overview
Photoreceptors and Visual Pathways
Angle Closure Glaucoma: Treatment
