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Are smooth pursuit eye movements altered in chronic whiplash-associated disorders? A cross-sectional study
A Kongsted1, L V Jørgensen, T Bendix
1The Back Research Center, Ringe, Denmark. alik@shf.fyns-amt.dk
Objective:
To evaluate whether smooth pursuit eye movements differed between patients with long-lasting whiplash-associated disorders and controls when using a purely computerized method for the eye movement analysis.
Design:
Cross-sectional study comparing patients with whiplash-associated disorders and controls who had not been exposed to head or neck trauma and had no notable neck complaints.
Methods:
Smooth pursuit eye movements were registered while the subjects were seated with and without rotated cervical spine.
Subjects:
Thirty-four patients with whiplash-associated disorders with symptoms more than six months after a car collision and 60 controls.
Results:
Smooth pursuit eye movements were almost identical in patients with chronic whiplash-associated disorders and controls, both when the neck was rotated and in the neutral position.
Conclusion:
Disturbed smooth pursuit eye movements do not appear to be a distinct feature in patients with chronic whiplash-associated disorders. This is in contrast to results of previous studies and may be due to the fact that analyses were performed in a computerized and objective manner. Other possible reasons for the discrepancy to previous studies are discussed.
