国际眼科杂志Issue(3)：428-431,4.DOI:10.3980/j.issn.1672-5123.2015.3.13
飞秒激光与角膜板层刀辅助 LASlK 术后早期角膜生物力学变化的比较
Comparison of corneaI biomechanicaI changes at earIy stage after femtosecond LASIK and microkeratome LASIK
摘要
Abstract
·AlM:To compare the corneal biomechanical changes at early stage after femtosecond laser assisted in situ keratomi ( LASlK) and microkeratome LASlK according to different residual corneal stroma thickness/cornea thickness ( RCST/CT) . <br> · METHODS: Ninety -four patients ( 187 eyes ) with femtosecond LASlK ( FS-lK ) and 96 patients ( 192 eyes ) with microkeratome LASlK ( M-lK ) were included in this study. LASlK group was divided into three groups according to the ratio of RCST/CT, which were lK-l group ( RCST/CT<55%) , lK-Ⅱ group ( 55%≤RCST/CT<60%) and lK-Ⅲ group ( RCST/CT≥60%) .Corneal hysteresis ( CH) and corneal resistance factor ( CRF) were measured by reichert ocular response analyzer ( ORA ) at pre -operation, postoperative 1and 3mo. <br> ·RESULTS:Compared with FS-lK and M-lK,there were no statistical difference in CH and CRF ( F=0.44, F=2.56, P=0.51, P=0.11 ) .Based on different RCST/CT, there were statistical differences in CH and CRF between groupⅠand group Ⅱ (F=103.03, 128.48,P<0.05), group Ⅱand groupⅢ ( P<0.05 ) , group Ⅰ and group Ⅲ ( P<0. <br> 05 ) . There were statistical differences in CH and CRF between pre-operation and different postoperative times ( F =576.99, 1162.06, P <0.05 ). CH and CRF of postoperative 1mo and 3mo were significantly smaller than pre-operation ( P<0.05) , but there was no statistical difference between postoperative 1and 3mo (P>0.05). <br> · CONCLUSlON: The biomechanical parameters decreased at early stage after femtosecond LASlK and microkeratome LASlK, but there is no statistical difference between femtosecond LASlK and microkeratome LASlK. The less the ratio of RCST/CT, the more effect on biomechanics.关键词
飞秒激光/角膜板层刀/准分子激光原位角膜磨镶术/角膜生物力学Key words
femtosecond laser/microkeratome/LASlK/corneal biomechanics引用本文复制引用
李仲佶,李雪,杜春宇,胡琦,吴琼,杨帆..飞秒激光与角膜板层刀辅助 LASlK 术后早期角膜生物力学变化的比较[J].国际眼科杂志,2015,(3):428-431,4.基金项目
黑龙江省哈尔滨市科技创新人才研究专项资金项目（No．2010RFLXS010）；黑龙江省教育厅科学技术专项资金项目（ No．12521263）；黑龙江省人事厅留学回国人员科技项目择优资助资金项目 （）
