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要約 目的:穿孔性眼外傷後の線維組織形成により白内障手術の難度が高くなった1症例の報告。
症例:45歳男性が,8歳時に鉛筆の芯により左眼に穿孔性外傷が生じた。数年前から左眼の視力低下で,外傷性白内障として紹介受診した。
所見と経過:矯正視力は右1.5,左30cm/指数弁で,左眼角膜の鼻下側に混濁があり,その後部に虹彩欠損と水晶体混濁があった。1か月後の水晶体再建術中に,角膜穿孔創から水晶体囊に至る線維性の組織形成があった。眼内レンズ支持部の片方を線維組織の上にかかるように囊外に固定した。以後眼内レンズの偏位はなく,術1年後の矯正視力1.0を維持している。
結論:本症例の外傷性白内障では,穿孔後の反応として線維組織増殖があり,白内障手術の際に格別の配慮が必要であった。
Abstract Purpose: To report a case of traumatic cataract with formation of fibrous tissue that necessitated particular care in cataract surgery.
Case: A 45-year-old male presented with impaired vision in the left eye since a few years before. He had been injured in the left eye by a tip of a pencil at the age of 8 years.
Findings and Clinical Course: Corrected visual acuity was 1.5 the right eye and counting fingers at 30 cm in the left. The left cornea showed opacity in the lower nasal quadrant, with iris defect and lens opacity in the same area. Cataract surgery showed fibrous tissue formation bridging the corneal opacity and the lens. The intraocular lens was fixated by placing one of the supporting loops on the fibrous tissue. There has been no dislocation of intraocular lens for one year after surgery with corrected visual acuity of 1.0.
Conclusion: Formation of fibrous tissue bridging the lens and cornea necessitated particular care in surgery of traumatic cataract.
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