blindness

His blindness is the result of an accident.

他的失明是一次事故造成的。

He wanted to prevent needless cases of blindness.

他期望避免不必要的失明病例。

Defective mitochondria are passed down only from the mother. They can lead to brain damage, muscle wasting, heart failure and blindness.

有缺陷的线粒体只会从母亲处遗传。它们会导致大脑损伤、肌肉萎缩、心力衰竭和失明。