Fig. 1.

A side view schematic of the handheld SLO-OCT design. All optical components are labeled and described in the legend. The SLO source is a 770 nm SLD with 15 nm bandwidth. The OCT source is an 840 nm SLD with 70 nm bandwidth. The optical paths shown are the superposition of both the illumination and collection paths. The illumination beam diameters for both SLO and OCT were ~2.5 mm. The collection beam diameter for the SLO was larger due to the larger NA and size of the collection fiber, and because backscattered light from the retina fills the pupil in the return path.