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Related Experiment Videos

Goldmann applanation tonometer calibration error checks: current practice in the UK.

N Kumar1, S Jivan

  • 1Eye Department, University of Hospital Aintree, Liverpool, Mersey, UK. nishant6377@aol.com

Eye (London, England)
|April 1, 2006
PubMed
Summary

Ophthalmologists in the UK rarely check Goldmann applanation tonometers for calibration errors, despite known accuracy issues. There

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Area of Science:

  • Ophthalmology
  • Medical Device Calibration
  • Clinical Practice

Background:

  • Goldmann applanation tonometers are crucial for measuring intraocular pressure.
  • Evidence suggests tonometers can lose accuracy during routine clinical use.
  • Current practices for checking tonometer calibration are not well-established.

Purpose of the Study:

  • To assess current practices and views on checking Goldmann applanation tonometers for calibration errors among UK ophthalmologists.
  • To identify the perceived responsibility for tonometer calibration checks.

Main Methods:

  • A structured questionnaire survey was administered to 100 ophthalmology residents in the UK.
  • Participants were asked about tonometer usage, frequency of error checks, and perceived responsibility for calibration.

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Main Results:

  • A significant majority (85%) of respondents never check tonometers for errors.
  • Only a small percentage (7%) perform checks at the start of each clinical session.
  • Most respondents (70%) do not consider calibration checks their responsibility, deferring it to other staff.

Conclusions:

  • A minority of UK ophthalmologists check Goldmann tonometers for calibration errors, despite evidence of accuracy degradation.
  • There is a lack of consensus regarding who should be responsible for ensuring tonometer accuracy.
  • Monthly calibration checks by designated personnel are recommended to maintain tonometer accuracy.