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Enhancing Vergence Responsivity in Mild Traumatic Brain Injury Patients through Oculomotor Rehabilitation

This study evaluates dynamic and static vergence responses in individuals with mild traumatic brain injury (mTBI) and near vision symptoms, showcasing the positive impact of oculomotor training on improving various aspects of vergence eye movements, visual attention, and symptoms.

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Enhancing Vergence Responsivity in Mild Traumatic Brain Injury Patients through Oculomotor Rehabilitation

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  1. Effect of oculomotor rehabilitation on vergence responsivity in mild traumatic brain injury Preethi Thiagarajan, BS Optom, MS, PhD; Kenneth J. Ciuffreda, OD, PhD

  2. Aim • Evaluate range of dynamic and static vergence responses in individuals with mild traumatic brain injury (mTBI) having near vision symptoms. • Relevance • Following acute phase and natural recovery period, most individuals with mTBI having vision-related symptoms are diagnosed with ≥1 oculomotor dysfunctions.

  3. Method • Participants: • 12 individuals with mTBI and near vision symptoms. • Crossover design: • Before and after oculomotor training (OMT) and placebo (P) training.

  4. Results • After OMT: • Increased peak velocity for convergence and divergence. • Correlation between increased peak velocity and increased clinically based vergence prism flipper rate. • Reduced steady-state response variability for convergence. • Improved maximum amplitude of convergence, relative fusional amplitudes, and near stereoacuity. • Reduced symptoms • Markedly improved visual attention. • After P training: • No significant changes.

  5. Conclusion • Most aspects of vergence eye movements significantly improved after OMT. • Demonstrates considerable residual brain plasticity via oculomotor learning. • Improved vergence positively affected near work-related symptoms and visual attention.

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