Fig. 9.

Fiber bundle tracing and retardation map along the trace for healthy eyes B, C, and D. (a) – (c): Fiber orientation en face map with traces (90 tracing lines with an azimuthal angle pitch of 4°). (d) – (f): Retardation en face maps. (g) – (i): Retardation map along trace. (j) – (l): UDR along the trace. Horizontal red dashed line in (g) – (l) indicates position at a distance of 1.7 mm from the ONH center. Healthy eye B: (a), (d), (g), (j); healthy eye C: (b), (e), (h), (k); healthy eye D: (c), (f), (i), (l). Color scales: −90° – + 90° for axis orientation, 0° – 30° for retardation, and 0° – 0.3° / μm for UDR.