Tracking Test Written by Deepseek AI on 07-18-2026

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What is the Smooth Pursuit Tracking Test?

The smooth pursuit tracking test is a key assessment used by healthcare professionals to evaluate how well your eyes can follow a moving object. This test is especially important for people who experience dizziness, as it helps identify problems with the vestibular system and the brain's ability to coordinate visual input with balance. During the test, you are asked to keep your head still while your eyes follow a slow-moving target, such as a pen or a light, without jumping or losing focus.

Why is Smooth Pursuit Important?

Our eyes rely on two main types of movement: saccades (quick jumps between points) and smooth pursuit (steady tracking of a moving object). When the smooth pursuit system is impaired, it can lead to visual instability, motion sensitivity, and dizziness. This tracking test helps doctors distinguish between central nervous system disorders and peripheral vestibular issues, such as benign paroxysmal positional vertigo (BPPV) or vestibular neuritis.

How the Test is Performed

During the smooth pursuit tracking test, you will typically sit or stand with your head stationary. The examiner will move a small target (like a finger or a pen) horizontally or vertically in front of your eyes at a slow, steady speed. Your eye movements are observed for any signs of "catch-up" saccades, jerky movements, or inability to stay on target. In some clinical settings, the test may be recorded using video-oculography for precise analysis.

What Abnormal Results May Indicate

If your smooth pursuit is impaired, it can suggest a number of conditions related to dizziness. These include cerebellar dysfunction, brainstem lesions, multiple sclerosis, or side effects from certain medications. A normal result generally indicates that the brain's oculomotor pathways and vestibular system are functioning well together. The test is often combined with other assessments, such as the head impulse test and dynamic visual acuity test, to provide a complete picture of your balance health.

Preparing for the Test

No special preparation is needed for a smooth pursuit tracking test. However, it is important to tell your doctor about any medications you are taking, as some drugs can affect eye movements. If you feel very dizzy during the test, let the examiner know immediately. The test is non-invasive and generally safe, though it may temporarily worsen symptoms of dizziness in sensitive individuals.

Conclusion

The smooth pursuit tracking test is a simple yet powerful tool in the diagnosis of dizziness and balance disorders. By evaluating how your eyes follow a moving target, healthcare providers can gain valuable insights into the health of your central and peripheral vestibular systems. If you suffer from persistent dizziness, ask your doctor whether this test might be appropriate for you.