Figure 2From: Comparison of the optical coherence tomographic characters between acute Vogt-Koyanagi-Harada disease and acute central serous chorioretinopathy Calculation of Retinal pigment epithelium undulation index. The RPE undulation index, defined as (Lh + Lv)/12 000, where Lh and Lv are the RPE line length in the 6 mm foveal-centered horizontal and vertical OCT scans, respectively (red line).Back to article page