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2例の先天性眼瞼欠損に対し,眼瞼後葉の再建に保存強膜を利用し,眼瞼前葉はZ—形成を用いて再建した。
保存強膜で再建された後葉は移植された強膜が支持となり,極めて自然で,加えて縫縮をする必要がないので機械的眼瞼下垂も起らないという利点もあり,保存強膜は極めて有益なhomograftic materialであるといえる。
Zの形成を利用した眼瞼前葉の再建は,手技は簡単で機能的には良好な結果が得られるが,日本人では重瞼ラインが乱れ,美容的にこの手術デザインは問題があると思われる11)。
Preserved sclera, when used as a homograftic material, is inert and endures for clinical use. We treated 2 cases of congenital eyelid coloboma by the technique of Z-plasty with preserved sclera. The preserved sclera, transplanted to the skinflap as lining material, remained in the site very well. It appeared as if the tarsal plate itself were grafted, since the sclera consists of packed collagen and is very similar to the tarsus in both structure and nat-ure. Mechanical ptosis did not occur post operati-vely, as there was no need to shorten the length of the eyelid in repairing the lid coloboma.
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