开放迷路安置耳蜗理植器有可能损害患者的前庭功能。要评估耳蜗埋植是否损害前庭功能必须选择术前前房功能存在的病例。对接受耳蜗埋植的25例耳聋患者术前行视动试验、旋转加、减速（velocitystep，VS）试验及双温试验。前庭功能评估分四类：正常、下降、完全丧失、亢进。视动 Open labyrinth placement of cochlear implant may damage the patient’s vestibular function. To assess whether implanted cochlear impaired vestibular function must be selected preoperative presence of anterior chamber function cases. Twenty-five patients with deafness receiving cochlear implantation underwent preoperative visual acuity test, velocitystep (VS) test and two-temperature test. Vestibular function assessment is divided into four categories: normal, decreased, completely lost, hyperthyroidism. As the move