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Lens Dislocation as a Complication of Neodymium: YAG Laser Iridotomy
於釹釔鋁紅寶石雷射虹膜切開術後併發之水晶體脫位
摘要
目的：報告一位接受青光眼雷射虹膜切除術及週邊虹膜整型術後發生水晶體脫位之病例。 方法：病例報告。 結果：一名61歲男性因右眼急性眼壓高先後接受青光眼雷射週邊虹膜整型術及雷射虹膜切除術，一個禮拜後出現突發性視力模糊，經眼科檢查發現右眼水晶體脫位，眼底可見一外囊完整的水晶體掉落至後房並且伴隨有輕微的高眼壓症。在初期給予局部β-blocker藥水控制眼壓，兩個月後眼壓降至正常範圍內，在五年的追蹤期間，病人無主觀症狀且並無其他併發症發生。 結論：潛在水晶體輕微鬆脫可能造成單眼隅角閉鎖性青光眼，雷射虹膜切開術使用的高能量可能會造成懸韌帶部分或完全破裂，術後必須注意水晶體脫位之併發症發生。
關鍵字
無資料並列摘要
Purpose: To report a patient who suffered from lens dislocation after Neodymium: YAG laser iridotomy (LI). Methods: A case report. Results: A 61-year-old man suffered from sudden decrease of vision in his right eye one week after argon laser gonioplasty and Neodymium: YAG laser iridotomy. Examination of the anterior segment showed patent iridotomy inferiorly and a visible scar from gonioplasty inferotemporally. Fundus examination revealed lens dislocation into the vitreous body without obvious retinal damage. During the 5 years of follow-up, his condition was stable without other complications. Conclusions: Occult lens subluxation should be suspected in patients present as angle closure without any precipitating risk factors. Nd: YAG laser iridotomy could have contributed to further zonular rupture and lens dislocation due to direct zonulysis or a shock-wave effect.
延伸閱讀
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