High-Resolution Optical Coherence Tomography Retinal Imaging: A Case Series Illustrating Potential and Limitations

Figure 2

SD-OCT retinal scan of a patient with exudative age-related macular degeneration (OD). Scan parameters: infrared scan angle 30°; OCT scan angle 30°; pattern size 30°×15°, 19 sections (244 μm between B-scans). (a) The conventional fundus camera image showed a large choroidal neovascular membrane (CNVM) situated beneath the macula with a probable serous pigment epithelium detachment (PED). (b) SD-OCT en-face image centered on the fovea. The green highlighted line shows the position of the scan line used to generate the cross-sectional retinal OCT image (i.e., (c)). (c) The cross-sectional retinal image revealed a subfoveal CNVM (arrow “1”) with a pigment epithelial detachment (PED) (arrow “2”) and possible neurosensory retinal detachment (arrow “3”) with apparent thickening and wrinkling of the Bruch’s membrane/RPE complex. (d) Cross-sectional retinal thickness profile revealed increased thickness of the retina due to the CNVM. The lower red segment line (shown in (c)) fails to fit the true position of Bruch’s membrane (arrow “4”) in the area of the CNVM.