iris setting

例句：

1. 1. The doctor performed an iris setting during the surgery.
   医生在手术中进行了虹膜定位。
2. 2.She was unable to see clearly due to a misalignment of her iris setting.
   她的虹膜定位不准确，因此她看不清楚。
3. 3. The patient's iris setting was adjusted to improve his vision.
   患者的眼睛虹膜定位被调整，以改善他的视力。