[Ease of handling of first and second generation rebound tonometers].
OBJECTIVE
To evaluate the ease of handling of two rebound tonometers, which are designed for self-measurement of intraocular pressure (IOP) in a clinical setting by untrained patients.


METHODS
After self-measurement of the IOP with the rebound tonometers iCare ONE and iCare HOME, participants were asked to complete a questionnaire containing different subitems concerning ease of operation using a visual analog scale (1 = very good to 5 = very poor). Moreover, the feasibility and duration of measurement were tested.


RESULTS
A total of 147 subjects participated in this study. The mean score for general handling ability was 2.79 ± 1.01 for the iCare ONE and 1.85 ± 0.87 for the iCare HOME (p < 0.001). The evaluation of the subitems sense of safety (iCare ONE: 2.71 ± 1.03 and iCare HOME: 1.87 ± 0.81, p < 0.001) and comfort of measurement (iCare ONE: 2.07 ± 1.01 and iCare HOME: 1.66 ± 0.72, p < 0.001) also showed a significant discrepancy between the two tonometers. Participants needed significantly less time for a single valid measurement when using the iCare HOME tonometer (mean 66.14 ± 61.54 s) compared to the iCare ONE tonometer (mean 81.54 ± 69.51 s, p < 0.001).


CONCLUSIONS
A better handling of the iCare HOME rebound tonometer in comparison to the iCare ONE tonometer can be deduced on the basis of the subjective assessments of patients and the shorter duration of measurements. Moreover, the iCare HOME received a significantly better evaluation for all subitems. The accuracy of measurements using the iCare HOME still needs to be clarified.
Klinik für Augenheilkunde, Universitätsklinikum Münster, Münster, Deutschland.
N
N
Mihailovic
Klinik für Augenheilkunde, Universitätsklinikum Münster, Münster, Deutschland.
J
J
Termühlen
Klinik für Augenheilkunde, Universitätsklinikum Münster, Münster, Deutschland.
M
M
Alnawaiseh
Klinik für Augenheilkunde, Universitätsklinikum Münster, Münster, Deutschland.
N
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Eter
Zentrum für Augenheilkunde, Universitätsklinikum Köln, Köln, Deutschland.
T S
TS
Dietlein
Klinik für Augenheilkunde, Universitätsklinikum Münster, Münster, Deutschland. andre.rosentreter@googlemail.com.|Klinik für Augenheilkunde, Universitätsklinikum Würzburg, Josef-Schneider-Str. 11, 97080, Würzburg, Deutschland. andre.rosentreter@googlemail.com.
A
A
Rosentreter
D004867:Equipment Design; D019544:Equipment Failure Analysis; D006804:Ergonomics / Q000295:instrumentation / Q000379:methods / Q000706:statistics & numerical data; D005260:Female; D005858:Germany; D006801:Humans; D007429:Intraocular Pressure / Q000502:physiology*; D008297:Male; D008328:Man-Machine Systems; D008875:Middle Aged; D017060:Patient Satisfaction / Q000706:statistics & numerical data*; D015203:Reproducibility of Results; D012648:Self Care / Q000295:instrumentation* / Q000706:statistics & numerical data*; D012680:Sensitivity and Specificity; D013673:Technology Assessment, Biomedical; D014065:Tonometry, Ocular / Q000295:instrumentation* / Q000379:methods / Q000706:statistics & numerical data*
Applanation tonometry; Intraocular pressure; Rebound tonometry; Self measurement; Tonometer