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Impact of user experience on intraocular pressure measurements in normotensive dogs using the ICare Tonovet tonometer
Lynn-Helen Kindler1, Martin Kramer2, Stefan Kindler1
1AniCura Wiesbaden-Schierstein GmbH, Germany.
Objective:
To determine the impact of user experience on intraocular pressure (IOP) measurements in handheld rebound tonometry using the ICare Tonovet tonometer.
Material And Methods:
Intraocular pressure (IOP) measurements were taken on 151 non-glaucomatous eyes of 82 dogs under general anesthesia. In each dog, tonometry was performed with the ICare Tonovet rebound tonometer by 3 examiners with different levels of experience in usage of the device. One examiner had been performing rebound tonometry for 20 years, one examiner had been performing rebound tonometry for 2 years and one examiner had never used a rebound tonometer prior to this study. To prevent the inexperienced examiner from becoming experienced, every 10 dogs a different inexperienced examiner was asked to perform the measurements. Statistical analysis was performed using Scatterplot, Pearson Correlation, simple linear correlation, Bland-Altman-Plot as well as an analysis of variance (ANOVA) and a Tukey-test.
Results:
A significant positive correlation was found between inter-user IOP measurements. User experience did not have a significant impact on intraocular pressure measurements.
Conclusions:
In this study, which was performed on anesthetized dogs, IOP measurements using the ICare Tonovet rebound tonometer are not significantly impacted by the experience of the examiner.
Clinical Relevance:
Inexperienced examiners can obtain reliable IOP measurements using the ICare Tonovet rebound tonometer in a clinical setting comparable to the conditions in this study.