随着年龄增长，她的视力开始逐渐下降。

Her ___eyesight started to decline as she got older.

我的视力在晚上不太好。

My ___eyesight isn't very good at night.

随着年龄增长，他的视力逐渐变弱。

As he got older, his ___eyesight gradually weakened.