Right © 2013 Elsevier Inc. Type Journal Article

Purpose: To study the prevalence and three-dimensional (3-D) tomographic features of focal choroidal excavations in eyes with central serous chorioretinopathy (CSC) using swept-source optical coherence tomography (OCT). Design: Prospective, cross-sectional study. Methods: We examined 116 consecutive eyes with CSC with a prototype 3-D swept-source OCT. 3-D images of the shape of the macular area, covering 6 x 6 mm2, were reconstructed by segmentation of the outer surface of the retinal pigment epithelium (RPE). Results: The 3-D swept-source OCT detected focal choroidal excavations in 9 eyes (7.8%). The 3-D scanning protocol, coupled with en-face scans, allowed for clear visualization of the excavation morphology. In 5 eyes with focal excavations, unusual choroidal tissue was found beneath the excavation, bridging the bottom of the excavation and the outer choroidal boundary. Additionally, three of those five eyes showed a suprachoroidal space below the excavation, as if the outer choroidal boundary is pulle