Definition
If you can do something with your eyes closed, it means you can do it very easily due to extensive practice or familiarity.
闭着眼都能做（形容对某事非常熟悉）
I know this software so well, I could almost operate it with my eyes closed.
我对这套软件非常熟悉，几乎可以闭着眼睛操作。
He has done this job countless times; for him, it's like doing it with his eyes closed.
他已经做了这份工作无数次；对他来说，就像闭着眼睛做一样。
I know this route so well, I could drive it with my eyes closed.
我对这条路线非常熟悉，可以闭着眼睛开车。
This expression describes a state of being oblivious or inattentive to one's surroundings.
视而不见
He always walks around with his eyes shut, never paying attention to his surroundings.
他总是闭着眼睛走路，从不在意周围的环境。
Sometimes we are so focused on our own things that we go around with our eyes shut to what's happening around us.
有时候我们太专注于自己的事情，以至于对周围发生的一切视而不见。
She seems to go through life with her eyes shut to all the criticism, continuing to do as she pleases.
她似乎对所有批评都视而不见，继续我行我素。