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Efficacy of computerized vergence therapy.

K M Daum, R P Rutstein, J B Eskridge

    American Journal of Optometry and Physiological Optics
    |February 1, 1987
    PubMed
    Summary
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    Computerized fusional vergence therapy effectively increases positive vergence ranges. Slow vergence training rates (0.75 delta/s) were more productive than fast rates (5.00 delta/s) for improving vision.

    Area of Science:

    • Ophthalmology
    • Vision Science
    • Neuroscience

    Background:

    • Fusional vergence is crucial for binocular vision.
    • Computerized therapy offers a novel approach to vision training.
    • Understanding optimal training parameters is essential for effective treatment.

    Purpose of the Study:

    • To evaluate the efficacy of computerized fusional vergence therapy.
    • To compare the effects of slow versus fast vergence training velocities.
    • To determine the optimal training rate for positive fusional vergence improvement.

    Main Methods:

    • A randomized controlled trial was conducted with 18 subjects.
    • Subjects were assigned to slow vergence training (0.75 delta/s), fast vergence training (5.00 delta/s), or a control group.

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  • Therapy involved 80 minutes over 4 weeks, with double-masked evaluations.

    • Main Results:

    • Subjects in the slow training group demonstrated significant increases in positive fusional vergence ranges.
    • Subjects in the fast training group did not show significant improvements.
    • Control subjects showed no significant changes in vergence ranges.

    Conclusions:

    • Computerized fusional vergence therapy is effective for enhancing positive fusional vergence amplitudes.
    • Slower vergence training rates are more beneficial for therapeutic outcomes.
    • This study highlights the importance of training velocity in vision therapy.