The doctor suspected his temporary blindness might be due to amaurosis caused by an optic nerve disorder.

amaurosis 是医学术语，源自希腊语 amauros（意为"黑暗的、模糊的"），指"视力丧失或失明"，特指没有明显眼部病变的视力丧失。在医学上常用来描述由视神经或中枢神经系统问题导致的失明症状。