Statistical analyses were performed for both the no-wipe and wipe groups. Through this test, P values for each calibrator setting were obtained, with P ≤ 0.5 considered statistically significant. The variability among the three subgroups was assessed used Levene's test. The 150 measurements collected for each target pressure point were divided into three subgroups: trials 1 to 50, 51 to 100, and 101 to 150. For mass screenings in developing countries where cost savings is crucial, considering the reuse of Icare tonometer probes seems reasonable.įurther analysis of these data was performed to determine whether the validity of the measurements was affected by repeated use of Icare probes. However, these differences would not be considered clinically significant.Ĭonclusion: This study suggests that reusing Icare tonometer probes, even for hundreds of measurements, would not reduce the clinical utility of the pressure readings. In addition, statistically significant readings were noted for a few of the settings as the number of readings increased for either group. Results: Statistically different readings were observed between the no-wipe and wipe groups for most of the settings evaluated. A second set of measurements was made during which the Icare probe head was wiped with an alcohol pad between each reading. Methods: Thousands of measurements were made with the same Icare probe on a purpose-built calibration device. The present study sought to determine whether reusing the probes reduced the validity of pressure readings. Background: It has been reported that reusing Icare tonometer probes may not pose a considerable risk of transmission of infection, thereby supporting this practice under extraordinary circumstances, such as mass glaucoma screenings in developing countries.
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