• Alice Kongsted, Lars Vincents Jørgensen, Charlotte Leboeuf-Yde, Erisela Qerama, Lars Korsholm, and Tom Bendix.
• The Back Research Center part of Clinical Locomotion Science, Back Center Funen, Denmark. alik@shf.fyns
• Clin Rehabil. 2008 May 1;22(5):469-79.

ObjectiveTo 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.DesignProspective cohort study with one-year follow-up.SettingThe study was carried out at a university research centre and participants were recruited from emergency units and general practitioners.SubjectsIn all, 262 participants were recruited within 10 days from a whiplash injury.Main MeasuresSmooth pursuit eye movements were tested with electrooculography (EOG) an average of 12 days after a whiplash trauma and again after one year. Analyses of EOG recordings were computerized. Associations between test results both from baseline and one-year tests and self-reported neck pain, headache, neck disability and working ability one year after the car collision were determined.ResultsResults of early eye movement tests were not associated with the prognosis. Reduced smooth pursuit performance when tested in static cervical rotation at the one-year follow-up was significantly associated with higher neck pain intensity at that time (regression coefficient 0.8, 95% confidence interval (CI) 0.04-1.5), but the association was too weak for the test to discriminate between recovered participants and those with lasting symptoms.ConclusionsAlthough reduced smooth pursuit performance at one-year follow-up was associated with persistent neck pain, smooth pursuit eye movement tests are not useful as predictive or diagnostic tests in whiplash-associated disorders.

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