pupillary reaction

例句：

1. 1. Thepupillary reaction is a crucial part ofthe visual system.
   瞳孔反应是视觉系统的重要组成部分。
2. 2.During the dark adaptation period, the pupillary reaction slows down.
   在暗适应期间，瞳孔反应会减慢。
3. 3. The doctorobserved the pupillary reaction during the examination.
   医生在检查时观察了瞳孔反应。