Fig. 2

Longitudinal visual function change in EON: A VA increased gradually with significant change between 3 m–6 m and 9 m–12 m; B VF improved gradually significantly from 3 to 6 m; C microperimetry showed gradual improvement without statistically significant change; D PVEP amplitude, E PVEP latency (*: p < 0.05, **: p < 0.01, **: p < 0.001)