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Eye closure and the acoustic reflex threshold

S D Stephens, B Blegvad, H J Krogh

    Journal of the American Audiology Society
    |September 1, 1977
    PubMed
    Summary
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    Closing eyes during acoustic reflex threshold tests lowers the threshold by 1.2 dB on average. This eye closure has no significant impact on measurement variability, suggesting minimal clinical significance.

    Area of Science:

    • Audiology
    • Auditory Evoked Potentials
    • Neuroscience

    Background:

    • The acoustic reflex threshold (ART) is a key measure in audiological assessments.
    • Variability in ART measurements can impact diagnostic accuracy.
    • Factors influencing ART, such as patient actions, require investigation.

    Purpose of the Study:

    • To investigate the effect of eye closure on the acoustic reflex threshold.
    • To determine if eye closure influences the variability of ART measurements.
    • To assess the clinical significance of eye closure during ART testing.

    Main Methods:

    • Participants underwent ART measurements.
    • ART was measured with and without voluntary eye closure.
    • Intra- and intersubject variability were analyzed.

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    Main Results:

    • Eye closure resulted in a statistically significant average decrease of 1.2 dB in the acoustic reflex threshold.
    • No significant differences in intra- or intersubject variability were observed with eye closure.
    • The observed threshold shift was deemed clinically insignificant.

    Conclusions:

    • Voluntary eye closure minimally impacts the acoustic reflex threshold.
    • Eye closure does not significantly affect the reliability or consistency of ART measurements.
    • Standard clinical protocols for ART measurement likely do not require specific instructions regarding eye closure.