第六對腦神經麻痺病患快速眼球運動速度變化之分析

Analysis of Saccadic Eye Movement in Patients of Abducens Nerve Palsy

10.30048/ACTASOS.199112.0142

沈秉衡(Bing-Herng Shen)；劉培元(Pei-Yuan Liu)

Abducens nerve palsy ； Saccade ； Peak velocity

台灣眼科醫學會會刊

30卷4期（1991 / 12 / 04）

105 - 110

繁體中文

以電氣眼振儀記錄十八位第六對腦神經麻痺病患之快速眼球運動最高速度(PV)並以臨床症狀將病人分為四組來分析，結果發現；第一組病人有明顯內斜視及複視，其PV顯著降低；第二組病人其第一眼位無內斜視及複視，PV恢復正常；第三組為臨床症狀完全恢復者，PV仍較對照組慢。分析第二組及第三組之差異主要在於發病時間，第二組大多數為六個月以上而第三組則多在六個月以內。第四組接受過Jensen's手術者，結果顯示手術僅能改善外觀，對眼球運動速度並無太大幫助。此檢查方法提供客觀之數據供臨床醫師參考，值得廣泛應用。

We recorded the saccadic eye movement in 18 patients of abducens nerve palsy with NEC electronystagmography. Peak velocities (PVs) were calculated and analyzed according to clinical manifestations of the patients. Patients with apparent esotropia and diplopia were classified as group 1 (N=8) and their PVs were significantly slower than control group. Group 2 (N=3) patients had no esotropia and no diplopia at primary position. The results showed their PVs had returned to normal. Group 3 (N=4) patients had complete recovery of their clinical symptoms and signs but their PVs revealed to be subnormal. The difference between group 2 and group 3 was onset time that group 3 patients appeared to be shorter. 6 patients received Jensen's operation were analyzed as group 4. The operation can only improve the outlooking of the patients and prevent diplopia at primary position, but can not improve the saccadic eye movement. Saccade velocity test provides objective data for doctor's reference. It is easily performed and should be broadly applied.