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Applanation tonometer correlations.

P S Soni

    American Journal of Optometry and Physiological Optics
    |December 1, 1977
    PubMed
    Summary
    This summary is machine-generated.

    This study found high correlations between Goldmann, Mackay-Marg, and non-contact tonometers for measuring intraocular pressure. These results suggest good agreement between the different tonometry methods for assessing eye pressure.

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    Area of Science:

    • Ophthalmology
    • Biomedical Engineering

    Background:

    • Accurate measurement of intraocular pressure (IOP) is crucial for diagnosing and managing glaucoma.
    • Various tonometry devices, including Goldmann, Mackay-Marg, and non-contact tonometers, are used for IOP assessment.
    • Understanding the correlation between different tonometers is essential for clinical practice and research.

    Purpose of the Study:

    • To compare the intraocular pressure measurements obtained from Goldmann, Mackay-Marg, and non-contact tonometers.
    • To establish the correlation coefficients between these three tonometry methods.

    Main Methods:

    • A study was conducted on 25 subjects.
    • Intraocular pressure was measured using Goldmann, Mackay-Marg, and non-contact tonometers.
    • Topical anesthetic was applied for Goldmann and Mackay-Marg measurements.

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    Main Results:

    • High positive correlations were observed between the tonometers.
    • Correlation between Goldmann and Non-contact: +0.93.
    • Correlation between Mackay-Marg and Non-contact: +0.81.
    • Correlation between Goldmann and Mackay-Marg: +0.87.

    Conclusions:

    • The Goldmann, Mackay-Marg, and non-contact tonometers demonstrate high agreement in measuring intraocular pressure.
    • These findings support the interchangeability of these tonometers in clinical settings.
    • Further research may explore the impact of anesthetic on measurement differences.