Fig. 2.

(A) Representation of the system illumination with the probing beam scanning transversally across the emmetropic eye. For the emmetropic eye, the scanning beam converges to the same location on the retina. The beam is focused by the objective lens (L1) near the iris plane to optimize OCT imaging and is defocused at the retina. (B) Diameter of the extended spot at the retina in the phakic and aphakic eye (solid lines) and at the wavefront sensor (dashed lines) as a function of axial eye length. The extended spot diameter was calculated by varying the axial eye length of a common computational model eye [34] between 22.6 and 28.7 mm to control the amount of defocus between −10 D and +5 D for the phakic eye (black lines) and between +5 and +17 D for the aphakic eye (red lines). (C) Photograph of the integrated system mounted on a table-top with headrest. An eye model is positioned on the head rest at a working distance of approximately 60 mm from the system.