虹膜纹理引导的飞秒激光囊膜标记法在Toric IOL植入中的应用  

Iris-registration capsulotomy marking for the implantation of Toric intraocular lens

作　　者：陈庆中 王晶 张广斌 Qing-Zhong Chen;Jing Wang;Guang-Bin Zhang(Xiamen Eye Centre Affiliated to Xiamen University, Xiamen 361000, Fujian Province, China)

机构地区：[1]厦门大学附属厦门眼科中心,中国福建省厦门市361000

出　　处：《国际眼科杂志》2021年第2期295-299,共5页International Eye Science

基　　金：福建省卫生厅青年科研课题(No.2012-2-81)。

摘　　要：目的:对比飞秒激光囊膜标记(FLACM)法与裂隙灯下手工标记(SAMM)法的Toric IOL轴位准确性和术后效果。方法:将拟行白内障超声乳化联合Toric IOL植入术的患者分为两组,分别采用FLACM法(25例25眼,FLACM组)与SAMM法(25例25眼,SAMM组)对散光轴位进行标记。评估比较术后两组患者裸眼远视力(UCDVA)、最佳矫正远视力(BCDVA)、残余散光(RA)、IOL轴位偏离度、总调制传递函数(MTF Total)。结果:术后1mo,FLACM组UCDVA(LogMAR)显著优于SAMM组(0.15±0.09 vs 0.22±0.11,P<0.05);FLACM组术后RA和IOL轴位偏离度均显著低于SAMM组(0.30±0.18D vs 0.64±0.28D,P<0.05;3.64°±1.68°vs 5.40°±3.44°,P<0.05);两组BCDVA和MTF Total均无差异(P>0.05)。术后UCDVA(LogMAR)与RA(r=0.350,P<0.05)、IOL轴位偏离度(r=0.369,P<0.05)呈正相关,与MTF Total值呈负相关(r=-0.290,P<0.05);术后RA与IOL旋转度呈正相关(r=0.431,P<0.05)。结论:FLACM法标记的Toric IOL轴位比SAMM法更加精确,从而获得更好的散光矫正效果和术后视力。AIM:To compare the accuracy of Toric intraocular lens(IOL)alignment and visual outcome using the femtosecond laser-assisted capsulotomy markings(FLACM)versus a conventional slitlamp-assisted manual marking(SAMM)procedure.METHODS:Totally 50 patients required cataract surgery and Toric IOL implantation were assigned to the FLACM group(25 eyes)or the SAMM group(25 eyes).The uncorrected distant visual acuity(UCDVA),best corrected distant visual acuity(BCDVA),residual astigmatism(RA),IOL rotation,MTF Total were measured 1mo after surgery.RESULTS:The UCDVA(LogMAR)was significantly lower in the FLACM group than in the SAMM group 1mo postoperatively(0.15±0.09 vs 0.22±0.11,P<0.05).The RA and IOL rotation were significantly lower in the FLACM group than in the SAMM group(0.30±0.18D vs 0.64±0.28D,P<0.05;3.64°±1.68°vs 5.40°±3.44°,P<0.05).There was no statistical difference between the two groups in the BCDVA and MTF total value(P>0.05).The UCDVA(LogMAR)was positive correlative to the RA(r=0.350,P<0.05)and IOL rotation(r=0.369,P<0.05),and was negative correlative to the MTF total value(r=-0.290,P<0.05);the RA was positive correlative to the IOL rotation(r=0.431,P<0.05).CONCLUSION:The accuracy of the axis alignment was significantly higher in the FLACM group,which results in lower residual astigmatism and better visual outcome.

关 键 词：白内障 散光 飞秒激光 囊膜标记 TORIC人工晶状体 

分 类 号：R47[医药卫生—护理学]