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Elliptical scans did not correlate with axial length. The plots illustrate the relationship of global RNFL thickness with axial length for the 550-μm elliptical scan for both the cross-sectional (A) and longitudinal data (B). The 550-μm elliptical scan was most similar to the 12° circular scan (C). Scans of 550 μm had less variation in thickness than did standard 12° scans (D). Illustrated are the 95% confidence limits for TSNIT plots for both scan types.
