视力测定法

例句：

1. 1. The doctor used the vision test to diagnose her eye condition.
   医生使用视力测试来诊断她的眼病。
2. 2. She underwent a visual acuity test before surgery.
   她在手术前接受了视觉清晰度测试。
3. 3. The school conducted a vision test for all students to ensure they were seeing clearly.
   学校对所有学生进行了视力测试，以确保他们看得清楚。