aplasia of optic nerve

例句：

1. 1. The patient had aplasia of the optic nerve, which caused severe visual impairment.
   患者患有视神经麻痹，导致严重的视力受损。
2. 2. Aplasia of the optic nerve is a rare condition that can lead to blindness if left untreated.
   视神经麻痹是一种罕见的状况，如果不治疗可能会导致失明。
3. 3. In some cases, aplasia of the optic nerve may be caused by trauma or infection, and requires immediate medical attention.
   在某些情况下，视神经麻痹可能是由创伤或感染引起的，需要立即就医。