Antisaccades and vergence abnormalities in functional movement disorders: A video-oculographic study
2016
Abstract
Convergence spasm (transient ocular convergence, miosis, and accommodation associated with disconjugate gaze) has been reported as common eye movement (EM) abnormality in patients with functional movement disorders (FMD).1 Our aim was to analyze reflexive prosaccades (EM toward a peripheral sudden-onset target), volitional antisaccades (EM toward the opposite side to a peripheral sudden-onset target), and vergence EM (alternation of convergence and divergence tracking proximal and distal targets) in a heterogeneous group of FMD patients without subjective visual disturbances and healthy controls using video-oculography (VOG).