Chen T, Gao Y, Hou Y, Li L
Department of Ophthalmology, Beijing Hospital, Beijing 100730, China.
Zhonghua Yan Ke Za Zhi. 2001 Jul;37(4):291-4.
To study and analyze the postoperative use of YAG laser for cataract surgery, the method, effects and complications of laser posterior capsulotomy.
Four hundred and fifty-one eyes out of 4 600 eyes with phacoemulsification in a single horizontal groove manner were dealt with YAG laser for postoperative complications, and of them, 380 eyes had a posterior capsulotomy with a two-steps method: posterior capsular circular incision and push down of the capsular chip. Forty-two eyes were treated for anterior membrane on the intraocular lens (IOL) by circular resection and peeling it off. The other 29 eyes were treated for different complications.
The rate of YAG laser treatment for postoperative complications was 9.8% and of them, the rate of posterior capsulotomy was 8.3%. The rate of eyes with posterior capsular opacification and one or more other complications was 14.2%. The mean energy of a single pulse for posterior capsular resection was (1.21 +/- 0.31) mJ, and the mean total energy was (52.44 +/- 14.62) mJ; the mean energy of a single pulse for push down of the capsular chip was (2.12 +/- 0.43) mJ, and the mean total energy was (50.88 +/- 10.32) mJ. The average naked visual acuity after posterior capsulotomy was increased to 0.58 from 0.32 before the laser treatment, and corrected visual acuity was 0.85. The energy of a single pulse was 1.0 to 1.4 mJ for anterior membrane resection of IOL, and the mean total energy was (56.28 +/- 32.74) mJ. No obvious damage or decentration of the IOL was found. After the treatment, the IOP in 95.3% of eyes was kept in normal range. Only did 2 eyes suffer from retinal detachment in follow-up.
YAG laser therapy for postoperative complications is easy to control, safe, effective, and has less complications. Besides the posterior capsulotomy, some other complications also can be cured with it.
研究分析白内障手术后YAG激光的应用情况，激光后囊切开术的方法、效果及并发症。
对4600例行单水平沟式超声乳化白内障吸除术的患眼中451眼出现的术后并发症进行YAG激光治疗，其中380眼采用两步法行后囊切开术：后囊环形切开及囊膜瓣下压。42眼采用环形切除及剥离法治疗人工晶状体（IOL）表面的前膜。另外29眼针对不同并发症进行治疗。
术后并发症YAG激光治疗率为9.8%，其中后囊切开术发生率为8.3%。后囊混浊合并一种或多种其他并发症的发生率为14.2%。后囊切除单脉冲平均能量为(1.21±0.31)mJ，平均总能量为(52.44±14.62)mJ；囊膜瓣下压单脉冲平均能量为(2.12±0.43)mJ，平均总能量为(50.88±10.32)mJ。后囊切开术后平均裸眼视力由激光治疗前的0.32提高至0.58，矫正视力为0.85。IOL前膜切除单脉冲能量为1.0～1.4mJ，平均总能量为(56.28±32.74)mJ。未发现IOL有明显损伤或偏心。治疗后95.3%的患眼眼压保持在正常范围。随访中仅2眼发生视网膜脱离。
YAG激光治疗术后并发症易于控制，安全、有效，并发症少。除后囊切开术外，其他一些并发症也可用其治愈。
