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. Author manuscript; available in PMC: 2019 Nov 1.
Published in final edited form as: Retina. 2018 Nov;38(11):2159–2167. doi: 10.1097/IAE.0000000000001867

Figure 1. Methodology for manual correction of segmentation.

Figure 1

A. Single line optical coherence tomography (OCT) scan through the fovea in a patient with Geographic Atrophy (GA) demonstrating altered retinal layers

B. Line scan after applying the Heidelberg software automated retinal layer lines, demonstrating incorrect segmentation at the retinal nerve fiber layer (RNFL), ganglion cell layer (GCL) (arrow) and inner plexiform layer (IPL), as well as at the outer plexiform layer (OPL) and external limiting membrane (ELM).

C. Line scan after manual correction of retinal layers using Heidelberg software.

D. Composite retinal thickness topographic map of the RNFL after manual correction of retinal segmentation layers (left) with the RNFL retinal thicknesses (right).