Fig. 2.
Time course of axonal elongation after optic nerve. A–C: Regenerating GAP-43 labeled axons at 1, 2, and 3 weeks after optic nerve injury. D: Length of the 100 longest axons in each nerve, against time after injury. E: Mean axon length at 2 weeks, showing no significant difference between intraocular and nerve application of PBS. Values are mean ± SEM, n = 5 (1–3 weeks), **P < 0.01, ***P < 0.001. Scale bar = 100 µm.