Visual outcomes after three different surgical procedures for correction of refractive error in patients with thin corneas  

作　　者：Hye Seong Hwang Hyun Jeong Lee Seong Jun Lee Jae-Hyung Kim 

机构地区：[1]Department of Ophthalmology,Chungbuk National University,Cheongju,Chunbguk 28644,Republic of Korea [2]Korean Minjok Leadership Academy,Hoengseong,Gangwon 25268,Republic of Korea [3]Nuri Eye Clinic,Daejeon 35234,Republic of Korea [4]Seoul Daabom Eye Center,Cheoungju,Chungbuk 28644,Republic of Korea

出　　处：《International Journal of Ophthalmology(English edition)》2020年第6期970-977,共8页国际眼科杂志（英文版）

摘　　要：AIM:To investigate and compare the visual and refractive outcomes of small incision lenticule extraction(SMILE),laser assisted sub-epithelial keratomileusis(LASEK),and LASEK combined with corneal collagen cross-linking(LASEKCXL)surgery in patients with less than 500μm of central corneal thickness(CCT).METHODS:The retrospective medical records review was conducted on the patients with CCT less than 500μm treated with SMILE,LASEK,and LASEK-CXL.There was a total of 172 eyes,76 eyes were in the SMILE group,53 eyes in the LASEK group,and 43 eyes in the LASEK-CXL group.Uncorrected distance visual acuity(UDVA),spherical equivalent refraction(SE),and corneal haze were followed up in the three groups for 12 mo.RESULTS:At 12 mo postoperatively,there were no statistically significant differences in UDVA and in the absolute value of SE between the three groups.The predictability within±0.50 D in the SMILE group(85.5%)was significantly higher than in both the LASEK group(64.2%,P<0.01)and the LASEK-CXL group(69.8%,P=0.04).The efficacy index and safety index were not significantly different among the three groups.Corneal haze at 12 mo postoperatively was higher in the LASEK-CXL group(27.9%)than in the SMILE group(2.6%,P<0.01)and in the LASEK group(7.5%,P<0.01).CONCLUSION:In patients with CCT less than 500μm,SMILE,LASEK,and LASEK-CXL appear to be effective for myopic correction.Among them,SMILE surgery shows the highest predictability.

关 键 词：small incision lenticule extraction thin cornea laser assisted sub-epithelial keratomileusis collagen-cross linking visual acuity MYOPIA 

分 类 号：R779.6[医药卫生—眼科]