advertisement
Abstract #23900 Published in IGR 11-2
Interexaminer and intraexaminer reliability of the microperimeter MP-1
Weingessel B; Sacu S; Vécsei-Marlovits PV; Weingessel A; Richter-Mueksch S; Schmidt-Erfurth UEye 2009; 23: 1052-1058
PURPOSE: To evaluate the interexaminer and intraexaminer reliability of macular microperimetry using the microperimeter MP-1. METHODS PARTICIPANTS: Fifteen healthy volunteers younger than 40 years of age (Group 1), 15 healthy subjects over 60 years (Group 2), and five patients with age-related macular degeneration (Group 3). OBSERVATION PROCEDURE: Two examiners (E1 and E2) measured, in random order, interexaminer (E2-E1a) reliability. Another examination was undergone by one of the examiners a week later to evaluate the intraexaminer (E1b-E1a) reliability. MAIN OUTCOME MEASURES: Macular sensitivity (mean threshold (decibel)) and stability of fixation were determined using MP1 microperimetry. Agreement was analysed by means of Bland-Altman plots and by the determination of the intraclass correlation coefficient.ResultsThe interexaminer (E2-E1a) and the intraexaminer (E1b-E1a) differences in the mean threshold values were not statistically significant (P=0.850, 95% confidence Interval (CI)=-0.265 to 0.319; P=0.246, 95% CI=-0.099 to 0.375, respectively). Limits of agreement and intraclass correlation coefficients also showed good agreement in each group. CONCLUSIONS: A good reliability was found for the mean threshold values in all the three groups, indicating examiner-independent measurements.
Department of Ophthalmology, Medical University of Vienna, Vienna, Austria.
Classification:
6.6.3 Special methods (e.g. color, contrast, SWAP etc.) (Part of: 6 Clinical examination methods > 6.6 Visual field examination and other visual function tests)
