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Related Experiment Videos

Non-contact tonometry in the postoperative eye.

S A Vernon1

  • 1Academic Unit of Ophthalmology, University Hospital, Nottingham.

The British Journal of Ophthalmology
|April 1, 1989
PubMed
Summary

The Keeler Pulsair non-contact tonometer effectively identifies postoperative ocular hypertension. It shows high accuracy and patient compliance, reducing infection risk compared to the Goldmann applanation tonometer.

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Area of Science:

  • Ophthalmology
  • Medical Devices

Background:

  • Postoperative ocular hypertension is a significant concern following eye surgery.
  • Accurate intraocular pressure (IOP) measurement is crucial for managing ocular health.
  • The Goldmann applanation tonometer is a standard but invasive method for IOP assessment.

Purpose of the Study:

  • To compare the diagnostic performance of the Keeler Pulsair non-contact tonometer against the Goldmann applanation tonometer.
  • To evaluate the efficacy of the Pulsair in identifying postoperative ocular hypertension.
  • To assess patient compliance and the risk of cross-infection with the Pulsair tonometer.

Main Methods:

  • A comparative study involving 48 eyes post-operation.
  • Measurement of intraocular pressure using both the Keeler Pulsair and Goldmann applanation tonometers.
  • Statistical analysis to determine correlation and agreement between the two devices.

Main Results:

  • A strong correlation (coefficient = 0.92, p < 0.001) was observed between the Pulsair and Goldmann tonometers.
  • The Pulsair demonstrated a slight, statistically significant tendency to overestimate IOP compared to the Goldmann.
  • The Pulsair showed high sensitivity and specificity for detecting postoperative ocular hypertension.

Conclusions:

  • The Keeler Pulsair non-contact tonometer is a reliable tool for identifying postoperative ocular hypertension.
  • Its non-contact nature enhances patient compliance and minimizes the risk of cross-infection.
  • The Pulsair offers a viable, accurate alternative for IOP monitoring in the postoperative setting.

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