title: Is there a role for optokinetic nystagmus testing in contemporary orthoptic practice? Old tricks and new perspectives.
abstract: Optokinetic nystagmus is a physiological oscillation of the eyes that requires intact development of motion perception, pursuit function, and saccadic function to be smoothly executed. Neuro-ophthalmological disorders often produce distinct perturbations in optokinetic responses that can be used to unmask the clinical diagnosis. With the advent of modern neuroimaging, optokinetic testing has slowly become a lost art in clinical examination. The purpose of this paper is to review the conditions wherein optokinetic testing provides a critical neurodiagnostic role, and to revitalize interest in this simple and valuable clinical tool.
authors.affiliation: From the Department of Ophthalmology and the.
authors.forename: Eleni
authors.initials: E
authors.lastname: Papanagnu
authors.affiliation: Departments of Ophthalmology and Neurology, Mayo Clinic, Rochester, Minnesota.
authors.forename: Michael C
authors.initials: MC
authors.lastname: Brodsky
mesh_terms: D000818:Animals; D006801:Humans; D009039:Motion Perception / Q000502:physiology; D017120:Nystagmus, Optokinetic / Q000502:physiology*; D015835:Ocular Motility Disorders / Q000175:diagnosis* / Q000503:physiopathology*; D009988:Orthoptics / Q000379:methods*; D014795:Visual Pathways / Q000503:physiopathology
keywords: aberrant regeneration of the oculomotor nerve; chiasmal lesion; congenital ocular motor apraxia; dorsal midbrain syndrome; homonymous hemianopia; infantile nystagmus; internuclear ophthalmoplegia; optokinetic nystagmus