visual testing chart

• 视力表

visual testing chart的用法和样例：

例句

1. A visual chart was hanging from the wall in the doctor's office.
   医生办公室墙上挂了一张视力表。
2. I found that I couldn't see any symbols on the eye chart during the physical examination.
   体检的时候，我发现视力表上的符号我一个也看不清。