Table 2. Axonal length of retinal ganglion cells of different time (μm mean±SD)

The difference in axonal length between experimental group (Nogo-A/B/C knockout mice) increased from the first day to seventh day after crush. The axonal length of control group (C57BL/6 control mice) increased from the first day to third day, then descreased from the third day to seventh day. The difference in axonal length between experimental group (Nogo-A/B/C knockout mice) and control group (C57BL/6 control mice) was not significant (*p>0.05) on the first postoperative day. However, the difference in axonal length was significant by the third and seventh days between experimental group and control group.

Culture
 time
 (day)    Experimental group   Control group     t       p
-------   ------------------   -------------   -----   -----
  1         2.63±1.35            2.52±1.32     0.96    >0.05
  3         23.39±5.56           9.32±2.24     3.26    <0.01
  7         13.32±3.12           6.15±2.36     3.15    <0.01
            F                    43.25         32.16
            p                    <0.01         <0.01