Mean differences in RNFL thickness measurements for ring 1 and 2 between operator 1 and 2 were 0.9 microm (limits of agreement, -11.4 to +9.6 microm) and 0.1 microm (limits of agreement -4.1 to +3.9 microm), respectively.ģD-OCT RNFL thickness measurements in healthy volunteers showed good intra- and interobserver reproducibility. Highest reproducibility was found for the two ring areas and the superior and inferior quadrants. The mean COV for operator 1 and 2 was 4.2% and 4%, respectively (range, 1.9%-6.7%). Intrasession reproducibility was good with a mean ICC of 0.90. Interobserver reproducibility was visualized by using Bland-Altman analysis. Intraclass correlation coefficients (ICC) and coefficients of variation (COV) were calculated. The ETDRS grid was centered on the optic disc. The field work is divided into two parts: previous works allowing the definition of the methodology to follow and the necessary resources and data gathering, both topographical and laser scanner.
RNFL thickness was calculated for eight areas corresponding to the ETDRS areas and for two ring areas. Levantamiento 3D de una estacin de metro 11 3 Field works There is an inspection of the working area to perform the project. High-density 6-mm(2) 3D scans were registered by two independent operators. Thirty-eight eyes were included in the study. The purpose of this study was to test the reproducibility of 3D-OCT RNFL thickness measurements in healthy volunteers. It can provide 6-mm(2) high-density scans to provide RNFL thickness measurements. Recently, high-speed, high-resolution Fourier-domain 3D-OCT has been introduced to improve OCT quality. Conventional time-domain optical coherence tomography (OCT) has been shown to provide reproducible retinal nerve fiber layer (RNFL) measurements.
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