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Relationship between chronic ICP level and magnitude of PC1 of pp-BM shape. ICP was measured by LP opening pressure performed less than 1 hour following OCT imaging. PCs were calculated using geomorphometic analysis of pp-BM shape as defined using 16 semi-landmarks on OCT B-scan of each optic nerve. Markers represent 39 eyes in 20 participants. Inset illustrates the first principal shape component, with positive magnitudes representing a flatter shape with a wider opening.
