Figure 11. (a) C-scan images of the fovea [20] obtained with the dual channel optical-coherence tomography (OCT)/confocal instrument in the C-scan imaging regimen. CSO: confocal scanning ophthalmoscopy image produced by the confocal channel; all the other images were provided by the OCT channel at depths shown below each image. Lateral size: 3 mm x 3 mm. (b) Large angle pair of images produced with the OCT/confocal instrument in the B-scan imaging regimen, showing the fovea and the optic nerve. 28° lateral size (peak to peak angular extension of the fan of scanned rays at the pupil). Top: CSO image; Bottom: B-scan OCT image (depth 2 mm in air). RNFL, retinal nerve fibre layer; PL, photoreceptor layer; RPE, retinal pigment epithelium [21]. Depth resolution in the OCT images: 12 µm.