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Published on: February 24, 2026
[Disinfecting contact tonometers - a systematic review]
A S Neubauer1, P Heeg, A Kampik
1Augenklinik, Ludwig-Maximilians-Universität, München. aljoscha.neubauer@med.unimuenchen.de
Summary
Disinfecting contact Goldmann tonometers is crucial for preventing infections. Chlorine-based and hydrogen peroxide-based liquid disinfectants are effective and safe when used for 5 minutes.
Area of Science:
- Ophthalmology
- Infectious Disease Prevention
- Medical Device Sterilization
Background:
- Contact Goldmann tonometers are essential for intraocular pressure measurement.
- Inadequate disinfection poses a risk of microbial transmission.
- Evidence-based guidelines for tonometer disinfection are needed.
Purpose of the Study:
- To systematically review the evidence on effective disinfection methods for contact Goldmann tonometers.
- To identify safe and reliable disinfection protocols.
Main Methods:
- Systematic review of articles published up to July 2008.
- Searches conducted in Medline, Embase, and reference lists.
- Data retrieval and assessment by two independent observers.
Main Results:
- 89 articles were retrieved; 58 were included in the review.
- Experimental studies showed chlorine-based and hydrogen peroxide-based disinfectants (5-minute application) are effective.
- Alcohol wipes and UV disinfection showed inconsistent efficacy and potential material damage.
Conclusions:
- Liquid disinfection using chlorine-based or hydrogen peroxide-based solutions for 5 minutes is effective and safe.
- These methods align with current US guidelines and expert recommendations.
- Further research may be needed to address inconsistent findings for other disinfection methods.
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