Figure 5: Co-alignment between cones and Müller cells light guides.

(a) Transmission channel (in red), recorded after 617 nm LED illumination from the retinal surface (ganglion cells side). (b) Reflection channel (in green), obtained by cone selective dye (FITC-PNA), and recorded by fluorescence scheme after 488 nm laser illumination from the photoreceptors side. (c) Merge of the two channels at the photoreceptors layer and in orthogonal Z slices. The Müller cells light-guiding tubes are aligned with the fluorescence green signal emitted from the labelled cones.