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Related Experiment Videos

A new handheld air impulse tonometer.

J H Fisher1, P G Watson, G Spaeth

  • 1PA Technology Cambridge Laboratory, Melbourn, Royston, Herts.

Eye (London, England)
|January 1, 1988
PubMed
Summary
This summary is machine-generated.

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A new handheld non-contact tonometer automatically delivers air pulses for accurate intraocular pressure measurement. Clinical trials show excellent correlation with Goldmann tonometry, offering a reliable alternative for eye pressure assessment.

Area of Science:

  • Ophthalmology
  • Medical Devices
  • Biomedical Engineering

Background:

  • Accurate intraocular pressure (IOP) measurement is crucial for diagnosing and managing glaucoma.
  • Existing tonometry methods may have limitations in terms of contact or ease of use.
  • Development of novel, user-friendly tonometers is essential for improving patient care.

Purpose of the Study:

  • To introduce and evaluate a novel handheld non-contact tonometer.
  • To assess the accuracy and reliability of the new tonometer compared to a gold standard.
  • To determine the clinical utility of the automated air pulse generation system.

Main Methods:

  • Description of the design of a new handheld non-contact tonometer.
  • Inclusion of an automated system for generating air pulses upon correct alignment.

Related Experiment Videos

  • Conducting clinical trials to compare readings with the Goldmann tonometer.

    • Main Results:

    • The non-contact tonometer demonstrated a good correlation with Goldmann readings.
    • Correlation coefficients (r) ranged from 0.88 to 0.95.
    • Standard deviations (S.D.) were between 1.56 and 2.66 mm Hg.

    Conclusions:

    • The new handheld non-contact tonometer is a promising device for IOP measurement.
    • Its performance shows high agreement with the established Goldmann method.
    • The automated system facilitates accurate and efficient tonometry.