RAB23 and Leber congenital amaurosis: Figure 2 presents that the cell proliferation activity of the Rab23 group, the LCA group, and the Rab23 + LCA group was greatly reduced compared to that of the BC group (P < 0.05). The cell proliferation activity of the Rab23 + LCA group was considerably reduced relative to that of Rab23 group and the LCA group (P < 0.05), while there was no obvious difference in the cell proliferation activity between the Rab23 group and the LCA group (P > 0.05).