チューブシャント手術後の白内障手術

Outcome of cataract surgery in eyes implanted with glaucoma valve

要約　目的：チューブシャント手術後の白内障手術の術後経過の報告。対象と方法：対象はAhmed glaucoma valve術後に白内障手術を施行した10例10眼，平均年齢は57.0±13.2歳，緑内障の病型は，原発開放隅角緑内障が7眼，続発緑内障が3眼であった。結果：術前眼圧は平均17.9±4.7mmHg，術後眼圧は17.3±2.2mmHgであった。術後視力は全例で改善した。術中合併症は特になかった。白内障手術後に眼圧コントロールが不良となり，緑内障手術を施行した症例が4例あった。結論：チューブシャント手術後の白内障手術は，重篤な術中合併症がなく，通常の白内障手術と同様に実施できた。4眼で眼圧上昇のため緑内障手術を再施行した。

Abstract.　Purpose：To report the outcome of cataract surgery in eyes implanted with glaucoma valve. Cases and Method：This retrospective study was made on 10 eyes of 10 cases who received cataract surgery in the past 25 months. The series comprised 8 males and 2 females. The age averaged 57 years. Seven eyes had primary open-angle glaucoma and three had secondary glaucoma. All the eyes had been implanted with Ahmed glaucoma valve before. Results：There was no major intraoperative complication. Intraocular pressure（IOP）averaged 17.9±4.7 mmHg before and 17.3±2.2 mmHg after cataract surgery. Visual acuity improved in all the eyes. Four eyes needed another surgical intervention for glaucoma. Conclusion：Cataract surgery could be performed without problem in eyes implanted with glaucoma valve before. Four out of ten eyes needed revision of previous surgery for glaucoma.