A comparable study of clinical and optical outcomes after 1,8, 2,0 mm microcoaxial and 3,0 mm coaxial cataract surgery  

作　　者：Yi-Bo Yu Ya-Nan Zhu Wei Wang Yi-Dong Zhang Yin-Hui Yu Ke Yao 

机构地区：[1]Eye Center, the Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou 310009, Zhejiang Province, China [2]Zhejiang Provincial Key Lab of Ophthalmology, Hangzhou 310009, Zhejiang Province, China

出　　处：《International Journal of Ophthalmology(English edition)》2016年第3期399-405,共7页国际眼科杂志（英文版）

基　　金：Supported by the Key Program of the National Natural Science Foundation of China(No.81130018);National Twelfth Five-Year Plan Foundation of China(No. 2012BAI08B01);Zhejiang Key Innovation Team Project of China(No.2009R50039);Zhejiang Key Laboratory Fund of China(No.2011E10006)

摘　　要：AIM： To evaluate the clinical pnd optical outcomes after clear corneal incision cataract surgery （ClCS） with three different incision sizes （1.8, 2.0 and 3.0 mm）. METHODS： Eyes of 150 patients with age-related cataract scheduled for coaxial cataract surgery were randomized to three groups： 1.8, 2.0, or 3.0 mm CICS. Intraoperative data and postoperative outcomes including surgically induced astigmatism （SIA）, the corneal incision thickness, wavefront aberrations and modulation transfer function （MTF） of cornea were obtained. RESULTS： There were no significant differences among the three groups in demographic characteristics and intraoperative outcome. The 1.8 and 2.0 mm microincisions showed more satisfactory clinical outcomes than the 3.0 mm incision. The 1.8 mm incision showed significantly less SIA than the 2.0 mm incision until postoperative lmo （P〈0.05）, but the difference was only 0.14-0.18 D. Combined with less increased incision thickness only at postoperative ld （P=0.013）, the 1.8 mm incision presented better uncorrected distance visual acuity （UCDVA） than the 2.0 mm incision only at Id postoperatively （P=0.008）. For higher-order aberrations and other Zernike coefficients, there were no significant differences between the 1.8 mm group and 2.0 mm group （P 〉0.05）. CONCLUSION： Converting from 3.0 mm CICS to 1.8 or 2.0 mm CICS result in better clinical and optical outcomes. However, when incision is 1.8 mm, the benefits from further reduction in size compared with2.0 mm are limited. The necessity to reduce the incision size is to be deliberated.AIM： To evaluate the clinical pnd optical outcomes after clear corneal incision cataract surgery （ClCS） with three different incision sizes （1.8, 2.0 and 3.0 mm）. METHODS： Eyes of 150 patients with age-related cataract scheduled for coaxial cataract surgery were randomized to three groups： 1.8, 2.0, or 3.0 mm CICS. Intraoperative data and postoperative outcomes including surgically induced astigmatism （SIA）, the corneal incision thickness, wavefront aberrations and modulation transfer function （MTF） of cornea were obtained. RESULTS： There were no significant differences among the three groups in demographic characteristics and intraoperative outcome. The 1.8 and 2.0 mm microincisions showed more satisfactory clinical outcomes than the 3.0 mm incision. The 1.8 mm incision showed significantly less SIA than the 2.0 mm incision until postoperative lmo （P〈0.05）, but the difference was only 0.14-0.18 D. Combined with less increased incision thickness only at postoperative ld （P=0.013）, the 1.8 mm incision presented better uncorrected distance visual acuity （UCDVA） than the 2.0 mm incision only at Id postoperatively （P=0.008）. For higher-order aberrations and other Zernike coefficients, there were no significant differences between the 1.8 mm group and 2.0 mm group （P 〉0.05）. CONCLUSION： Converting from 3.0 mm CICS to 1.8 or 2.0 mm CICS result in better clinical and optical outcomes. However, when incision is 1.8 mm, the benefits from further reduction in size compared with2.0 mm are limited. The necessity to reduce the incision size is to be deliberated.

关 键 词：KEYWORDS： microsurgery  phacoemulsification TREATMENTOUTCOME 

分 类 号：R779.66[医药卫生—眼科]