Fig. 4.

Visualization of outer retinal bands in a single B-scan. (A) Ultrahigh resolution visible light OCT imaging of the macula (square root scale). (B) Zoom of white box in panel A, showing six outer retinal bands, including the external limiting membrane (ELM), photoreceptor inner segment / outer segment junction (IS / OS), cone outer segment tip (COST), rod outer segment tip (ROST), retinal pigment epithelium (RPE), as well as Bruch’s membrane (BM). Posterior to BM is the choriocapillaris (CC). Sidelobes of the point spread function may result in “ghost” signals proximal to the IS / OS band.