1、Hippus is a condition characterized by rapid, involuntary movements of the eye.
眼动性跳跃是一种眼睛病变，表现为眼球快速、不自主地来回移动。

2、The patient was diagnosed with hippus, which explained her abnormal eye movements.
医生诊断患者患有眼动性跳跃，这解释了她眼睛异常的运动。