Simultaneous versus sequential corneal cross-linking and intracorneal ring segments implantation for keratoconus: two-year study  

作　　者：Ismail Omar Rasha Safwat Elhiny 

机构地区：[1]Ophthalmology Department,Faculty of Medicine,Minia University,Elminya 61111,Egypt [2]Ophthalmology Department,Faculty of Medicine,October 6 University,Giza 12585 Egypt

出　　处：《International Journal of Ophthalmology(English edition)》2025年第5期840-845,共6页国际眼科杂志(英文版)

摘　　要：AIM:To compare simultaneous corneal collagen cross-linking(CXL)with intracorneal ring segment(ICRS)implantation versus successive ICRS followed by CXL and detect the impact of the timing of CXL after ICRS implantation in the successive method.METHODS:This is a retrospective study of the records of three groups of patients.Group 1 of 28 patients were operated on with simultaneous ICRS implantation and CXL,group 2 of 32 patients had ICRS implantation followed by CXL after 1mo,and group 3 of 38 patients had ICRS implantation followed by CXL after 3mo.The three groups had follow-up visits after 6,12,and 24mo.RESULTS:The preoperative data,age,and gender differences among 3 groups revealed no significant differences.The postoperative spherical equivalent and best-corrected visual acuity were improved significantly in all groups compared to the baseline,which were more evident in groups 1 and 2.The differences between preoperative and postoperative mean values of mean of K readings(Km)and maximum K reading(Kmax)at 6mo were 4.66 and 4.1 D in group 1,4.43 and 4.64 D in group 2,but 3.2 and 3.4 D in group 3,respectively.The spherical aberrations and the vertical coma showed significant postoperative changes in all groups,and trefoil showed nonsignificant changes.CONCLUSION:Simultaneous and sequential ICRS implantation and CXL at 1mo has similar Km and Kmax better postoperative changes than when both surgeries were done at three-month intervals.

关 键 词：KERATOCONUS cross-linking intracorneal ring ABERRATIONS 

分 类 号：R779.6[医药卫生—眼科]