Figure 5.
Pigmentary abnormalities. (A) Red-free photograph. (B) Fluorescein angiograph. (C) OCT fundus image. (D—G) Cross-sectional OCT fundus images extracted from the 3-D data set. Arrow 1 shows a hyper-reflective feature in the outer nuclear layer, arrow 2 shows increased light scattering into the choroid, arrow 3 shows pigment accumulation, and arrow 4 shows pigment migration. (H—K) Projection OCT fundus images at the depth levels shown in (D). The locations of cross-sectional OCT images (D—G) are shown as lines on the projection OCT fundus images. Image sizes are 6 mm×6 mm. BM, Bruch membrane; ELM, external limiting membrane; IS/OS, photoreceptor inner/outer segment junction; ONL, outer nuclear layer; PR OS; photoreceptor outer segment; RPE, retinal pigment epithelium.