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A Near Visual Acuity Test for Dentists.

P Perrin, M Eichenberger, K W Neuhaus

    Operative Dentistry
    |July 15, 2017
    PubMed
    Summary
    This summary is machine-generated.

    A new, accessible visual test using a US $5 bill effectively assesses near visual acuity in dentists. This simple method correlates strongly with validated tests, aiding in monitoring vision changes like presbyopia.

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    Area of Science:

    • Ophthalmology
    • Dental Medicine
    • Optometry

    Background:

    • Unimpaired near vision is critical for dental professionals performing intricate procedures.
    • Currently, accessible visual acuity tests tailored for dental working distances are limited.

    Purpose of the Study:

    • To validate a novel, user-friendly, and freely available visual triage test for dentists.
    • To assess the correlation between a novel test and a validated scientific near vision test.

    Main Methods:

    • 106 dental professionals (aged 21-65) underwent near visual acuity testing at 300 mm.
    • Tests included a miniaturized microfilm visual acuity test and an experimental US $5 bill test (reading Lincoln Memorial frieze text).

    Main Results:

    • A strong correlation (Spearman's rho = 0.784, p<0.0001) was found between the US $5 bill test and the validated microfilm test.
    • The US $5 bill test accurately predicted near visual acuity relative to the median score.
    • Age and experience significantly influenced visual performance, consistent with previous research.

    Conclusions:

    • The US $5 bill serves as a practical, readily available tool for dentists to assess and rank near visual acuity.
    • This test can help identify visual decline and monitor the progression of presbyopia among dental professionals.