Figure 1: A, B Retinal thickness was measured by automated segmentation using OCT software and the topographic map (B) of retinal thickness and volume was automatically generated by the OCT software. C, D The choroidal thicknesses were obtained using a volume scan program with manual segmentation. For segmentation of the choroidal layer, the reference lines of the retinal boundary (internal limiting membrane–retinal pigment epithelium) were adjusted to the choroidal boundary (retinal pigment epithelium–choroid/sclera junction) in each of the 25 volume scans. A topographic map (D) of choroidal thickness and volume was automatically generated by the OCT software.