14例患者中，2B期4只眼，3A期8只眼， 3B期1只眼，4期1只眼。

Among the 14 patients, 4 eyes were stage 2B, 8 eyes were stage 3A, 1 eye was stage 3B, and 1 eye was stage 4. <br>Among the 14 patients, the visual acuity was no light perception in 2 cases, light perception to several fingers in 4 cases, 0.01 to 0.1 in 4 cases, and 4 cases were unable to cooperate with the examination because of their youth.

Of the 14 patients, 4 eyes in 2B, 8 eyes in 3A, 1 eye in 3B, 1 eye in stage 4.<br>Of the 14 patients, vision was 2 cases of lightlessness, light sensitivity was 4 cases, 0.01 to 0.1 4 cases, 4 cases were unable to cooperate with the examination due to youth.

Among the 14 patients, 4 eyes were in stage 2B, 8 eyes in stage 3a, 1 eye in stage 3b and 1 eye in stage 4.<br>Among the 14 cases, 2 cases had no light sense, 4 cases had light sense to digital finger, 4 cases had 0.01-0.1, and 4 cases could not cooperate with the examination because of their young age.