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Related Experiment Videos

Vertical prisms. Why avoid them?

W W Bixenman

    Survey of Ophthalmology
    |July 1, 1984
    PubMed
    Summary

    Vertical prisms effectively alleviate eye strain caused by visual axis misalignment. This method offers a simple solution for various hyperdeviations without compromising spectacle aesthetics.

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    Area of Science:

    • Ophthalmology
    • Optometry
    • Vision Science

    Background:

    • Asthenopic symptoms often result from vertical misalignment of the visual axes.
    • Hyperdeviations, both comitant and noncomitant, represent common causes of visual discomfort.

    Observation:

    • Vertical prisms offer a viable therapeutic option for managing asthenopia.
    • The application of vertical prisms is indicated for a broad spectrum of hyperdeviations.

    Findings:

    • Calculating the required vertical prism strength is generally straightforward.
    • Properly prescribed vertical prisms do not negatively impact the cosmetic appearance of eyeglasses.

    Implications:

    • Vertical prisms provide a practical and aesthetically acceptable solution for patients experiencing asthenopic symptoms due to vertical misalignment.
    • This approach enhances patient comfort and compliance in managing binocular vision anomalies.