Automated segmentation of choroidal layers from 3-dimensional macular optical coherence tomography scans

•Novel, memory-efficient, 3D automated choroidal layer segmentation method for OCTs.•Multiscale segmentation from macular scans using LOGIMOS method.•Works on Cirrus and Heidelberg machines (good results observed with images from other OCT machines).•High reliability/reproducibility demonstrates significant superiority to previous method.•Could be useful clinically for analysis and monitoring of choroidal diseases, e.g. AMD.