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A, OCT scan showing the vertical positions of the inner limiting membrane (ILM) with respect to the lowest continuation of the vertical ILM position optic nerve head (ONH). B, C, Example of the ONH and RNFL surface shape structure in (B) 2-dimensional and (C) 3-dimensional heatmaps. D, Fourteen ONH and RNFL surface shape patterns identified with an unsupervised artificial intelligence method, nonnegative matrix factorization.
