eversion       
noun [ U ]  medical specialized uk/ɪˈvɜːʒ.ən/ us/ɪˈvɝː.ʒən/
 外翻;翻转
the act of turning something outwards or inside out
  eversion of the foot 足外翻 
 Eversion of the eyelid is done when there may be something in the eye. 眼睑外翻可能是由于眼内有异物。