Relationship between Neovascular Density in Swept Source-Optical Coherence Tomography Angiography and Signs of Activity in Exudative Age-Related Macular Degeneration

Figure 2

Clinically active minimally hyperdense choroidal neovascularization (CNV). (a) The 6 × 6 mm swept source-optical coherence tomography angiography (SS-OCTA) C-scan (DRI Triton, Topcon) displayed extensive CNV formation in the macular region with areas of peripheral arcades and loops (arrows), capillary branching (arrow-heads), and sea-fan-shaped peripheral anastomoses corresponding to (b) the otherwise nonperfused outer retina segmentation image. (c) The choriocapillaris layer highlighted the multitudinous nonvascularized halos of capillary dropout within the lesion area in addition to some projection artefacts in (d) an OCT B-scan segmentation image. (e) The infrared fundus photography revealed subretinal fibrotic tissue around the fovea (arrows) in addition to major neovascular vessels (arrow-heads) and temporally sprayed hemorrhage . (f) A macula with enlarged foveal depression (arrow), intraretinal fluid (arrow-heads), and underlying fibrosis next to prominent subretinal hyperreflective material were depicted in the routine spectral domain-OCT B-scan (Cirrus HD 4000, Zeiss).