Are altered smooth pursuit eye movements related to chronic pain and disability following whiplash injuries? A prospective trial with one-year follow-up.

Objective: To evaluate the ability of early smooth pursuit testing to predict chronic whiplash-associated disorders, and to study whether the presence of abnormal smooth pursuit eye movements at one-year follow-up is associated with symptoms at that time.

Design: Prospective cohort study with one-year follow-up.

Setting: The study was carried out at a university research centre and participants were recruited from emergency units and general practitioners.