Figure 2A:

OCT and OCTA B-scans showing the projection boundaries for Cases 1–4. These projection boundaries were used to trace the lesion margins and form VISTA images. Columns 1 and 2 show OCT B-scans from the initial and follow-up visits, respectively. Columns 3 and 4 show OCTA B-scans from the initial and follow-up visits, respectively. The locations from which these B-scans were taken are indicated by the dashed white arrows in Figure 10A and Figure 10B. Note that because the scans from the following visits are not registered, the selected B-scans do not correspond to the exact same positions on the retina. The horizontal red lines indicate the boundaries between which the OCTA signal was projected when forming en face OCTA and en face VISTA images. Note that for Case 1 we used two different projection ranges, one for each component of the lesion. For all cases, except Case 7, the same projection boundaries were used to trace the lesion margins and to compute the VISTA signal; for the initial visit of Case 7 different projection boundaries were used for margin tracing and VISTA computation.