Ocular motor abnormalities in Parkinsonian syndromes: a review

Introduction: Oculomotor abnormalities can be observed in all Parkinsonian syndromes. Besides the eponymous vertical gaze palsy in Progressive Supranuclear Palsy (PSP), oculomotor alterations are generally not considered to contribute substantially to the differenzial diagnosis of Parkinsonian syndromes. Material and Methods: There are subtle differences of apparently similar oculomotor alterations in Parkinson's disease (PD) and atypical neurodegenerative Parkinsonian syndromes (Multiple System Atrophy (MSA), Progressive Supranuclear Palsy) that can contribute to the early differenzial diagnosis of these entiti…