ORT in eyes with CNV secondary to AS and AMD. ORT structures appear to be similar in eyes with CNV secondary to AS (a–d) and AMD (e, f). (a), (c), (e), Infrared images. (b), (d), (f), SD-OCT. The superior and inferior portions of the SD-OCT images in (b), (d), and (f) that did not include retinal images were cropped. Green lines in the infrared images (a, c, e) represent the scan lines for the corresponding SD-OCT images (b, d, f). (g), (h), (i), The magnified ( × 2) views of the areas outlined by red dashed lines in the corresponding SD-OCT images (b, d, f). SD-OCT images show characteristic round or ovoid tubular structures (ORTs) in the outer retinas that have highly reflective round/ovoid annular lines. The centres of ORTs contain highly reflective amorphous materials within the annulus. The ORTs were observed at the border of and over the CNV. ELM, external limiting membrane; INL, inner nuclear layer; IS/OS, photoreceptor inner segment/outer segment junction; ONL, outer nuclear layer; OPL, outer plexiform layer.