钕-钇铝石榴石激光切除人工晶状体前膜

Nd: YAG laser clearance of the anterior surface of intraocular lenses

目的 探讨采用钕 钇铝石榴石 (neodymium yttriumaluminumgarnet,Nd :YAG)激光切除人工晶状体 (intraocularlenses,IOL)前膜的方法 ,并评价其疗效和安全性。方法 对 1 997年 3月至 1 999年 1 1月在我院眼科就诊的白内障摘除术后IOL前膜患者 2 3例 (2 4只眼 ) ,应用Coherent公司生产的Nd :YAG激光器进行治疗。观察治疗的成功率 ,治疗后视力、眼压和眼前节炎性反应情况。结果 2 4只眼 (1 0 0 % )均一次性完全切除IOL前膜 ,且IOL无损伤。 2 0只眼 (83 3 % )治疗后视力提高 ,9只眼(37 5 % )治疗后眼压 >2 1mmHg(1mmHg =0 1 33kPa) ,为暂时性眼压升高。滴用糖皮质激素后炎性反应得到控制。结论 应用Nd :YAG激光可有效、安全切除IOL前膜 ;熟练掌握操作技巧 ,是成功应用Nd :YAG激光切除IOL前膜 。

Objective To assess the efficacy and safety of Nd:YAG laser in clearing the anterior fibrinous membrane of posterior chamber intraocular lens (IOL) Methods Twenty four eyes with the anterior fibrinous membrane of posterior chamber IOL were treated by Nd:YAG laser with the principle of 'Low energy and de focus' from 1997 to 1999 in Peking Union Medical College Hospital Visual acuity, intraocular pressure (IOP) and anterior segment of the eye were followed after the laser treatment Results Nd:YAG laser successfully cleared the anterior fibrinous membrane of IOL and IOLs were not damaged in all 24 eyes The visual acuity was improved in 83 3% of the eyes The IOP temporarily raised to above 21 mm Hg in 37 5% of the eyes Topical steroids were used for the control of the intraocular inflammation in anterior segment after laser treatment Conclusion The anterior membrane of IOL can successfully and safely be cleared by Nd:YAG laser with the principle of 'low energy and de focus