Video-oculography for enhancing the diagnostic accuracy of early oculomotor dysfunction in Progressive Supranuclear Palsy.

Background: Oculomotor impairment is an important diagnostic feature of Progressive Supranuclear Palsy (PSP) and PSP subtypes.

Objectives: We assessed the role of video oculography (VOG) in confirming clinically suspected slow saccades in PSP and differentiating PSP from Parkinson's disease (PD). We also measured the correlation of both saccadic velocity and latency in PSP with scores in PSP rating scale, Montreal Cognitive Assessment (MoCA) and Frontal assessment battery (FAB).