后发性白内障Nd:YAG激光后囊膜切开术后屈光状态及眼生物学参数的变化  

Changes of refraction and ocular biological parameters after Nd:YAG laser capsulotomy for posterior capsule opacification

作　　者：王燕[1] 欧扬[1] 袁远[1] 王璐[1] 庞龙[1] 

机构地区：[1]广东省中医院眼科,广东省广州市510120

出　　处：《眼科新进展》2015年第6期569-572,共4页Recent Advances in Ophthalmology

摘　　要：目的探讨后发性白内障行Nd:YAG激光后囊膜切开术后屈光状态、眼生物学参数变化特点及其与后囊膜切口大小的关系。方法采用临床病例对照研究,选取2012年6月至2014年6月在广东省中医院眼科就诊的后发性白内障患者62例(62眼),将入选患者分为A组28例(28眼)、B组34例(34眼);两组患者均行Nd:YAG激光后囊膜切开术,A组术中形成4.0mm大小后囊膜切口,B组术中形成5.5 mm大小后囊膜切口,两组患者术前、术后均行最佳矫正视力(best corrected visual acuity,BCVA)、眼压、裂隙灯、眼底检查及等效球镜(spherical equivalent,SE)、前房深度(anterior chamber depth,ACD)及眼轴长度(axial length,AL)的测量,比较2组各项指标。结果术后两组患者BCVA均较术前明显提高,差异均有统计学意义(Z=-4.23、-5.09,均为P=0.000)。两组患者术前ACD值分别为(3.32±0.07)mm、(3.31±0.05)mm,术后分别为(3.45±0.07)mm、(3.48±0.07)mm,两组术前术后比较,差异均有统计学意义(Z=-4.58、-4.98,均为P=0.000);两组术前SE分别为(-0.29±0.44)D、(-0.29±0.57)D;术后分别为(0.47±0.40)D、(0.51±0.42)D,两组术前术后比较,差异均有统计学意义(Z=-4.69、-5.03,均为P=0.000)。但两组之间BCVA、ACD及SE比较,差异均无统计学意义(均为P>0.05)。AL值两组术后与术前比较及两组间比较,差异均无统计学意义(均为P>0.05)。结论后发性白内障Nd:YAG激光后囊膜切开术后存在人工晶状体轻微后移,导致术后远视漂移现象,但远视漂移程度与后囊膜切口大小无关。Objective To evaluate the changes of refractive status and ocular bi- ological parameters in posterior capsule opacification （PCO） patients after Nd ：YAG la- ser capsulotomy. Methods Sixty-two cases （62 eyes） with PCO were recruited from June 2012 to June 2014 in Guangdong Province Hospital Of Traditional Chinese Medical. The patients were divided into two group, group A received laser capsulotomy with 4 mm diameter,and group B with 5.5 mm diameter. The best corrected visual acuity（BC- VA） ,spherical equivalent（SE） ,anterior chamber depth （ACD） and axial lengths （AL） of patients were recorded before and one mouth after the surgery. Results The post- operative BCVA in two groups of patients was obviously improved compared with the pre-operation （Z = - 4. 23, - 5.09 ; both P = 0. 000 ）. The preoperative ACD of two groups were（ 3.32 ± 0.07）mm, （ 3.31 ± 0.05）mm, respectively, while postoperative ACD were （ 3.45± 0.07 ） mm, （ 3.48± 0.07 ） mm, respectively, there were significant differ- ences between pre-operation and post-operation in group A and B （Z = - 4.58, - 4.98 ; both P = 0.000）. The preoperative SE in two groups were （ - 0.29 ± 0.44） D, （ - 0.29 ± 0.57 ） D, respectively, while the postoperative SE were （0.47 ± 0.40） D, （0.51 ± 0.42） D, respectively, there were significant differences between pre-operation and post-opera- tion in group A and B （ Z = - 4.69, - 5.03 ; both P = 0. 000）. But there was no significant difference in BCVA,SE,ACD between two groups （all P〉0.05）. There was no significant difference in AL of two groups af- ter surgery compared with the preoperative and the comparison between the two groups （ all P 〉 0.05 ）. Conclusion Hy- peropic shift exists in PCO patients after Nd：YAG laser capsulotomy,but the change is not related with the incision size of posterior capsulotomy.

关 键 词：后发性白内障 ND:YAG激光后囊膜切开术 屈光 眼生物学参数 

分 类 号：R779.63[医药卫生—眼科]