Clinical utility of square-wave jerks in neurology and psychiatry

• DOI: 10.3389/fopht.2023.1302651
• Publication Date: 2024-01-04T04:30:03Z
• Authors: Athena Zachou; Georgios Armenis; Ioannis Stamelos; Eirini Stratigako...; Fotios Athanasopo...; Evangelos Anagnostou
• Keywords: eye movements; saccadic intrusions; Ophthalmology; 03 medical and health sciences; 0302 clinical medicine; fixation; R; Medicine; square-wave jerks; progressive supranuclear palsy; cerebellar ataxia

Human eye fixation is steadily interrupted by small, physiological or abnormal, movements. Square-wave jerks (SWJ) are the most common saccadic intrusion which can be readily seen at bedside and also quantified using oculographic techniques. Various neurological, neuropsychiatric psychiatric disorders display abnormal fixational movement patterns characterized frequent SWJ. For clinician, SWJ particularly important because they observed bedside. Here, we will discuss pathological conditions that present with explore expanding body of literature suggesting may serve as a potential indicator for various clinical conditions.