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Scatter plots for OCT measures in study eyes, using Pearson correlations. Top of figure shows frequency distribution histogram for all parameters. GCL, GCL+IPL average thickness for the macular region; Line 3, ONH height measured by using Line 3 of the SD raster lines; N, number of study eyes with data for each OCT measure; ONH, total optic nerve head volume; p(r) = P value; Zeiss, percentile Zeiss controls.
