CAJ | 학술논문

目的探讨SMILE术后眼内散射的变化,并对其相关影响因素进行分析.方法前瞻性病例研究.选取拟行SMILE手术的近视及近视散光患者67例(67眼),应用C-quant散射仪分别测量患者手术前、术后1周、术后1个月、术后3个月及术后6个月眼内散射光计量值,并与年龄、球镜度、等效球镜度、CCT、角膜平均曲率值(Km)、角膜曲率半径等做相关分析,同时采用Pearson相关分析术后散射光计量值变化与角膜帽直径、小切口大小、切削深度、切削比、剩余角膜厚度(RBT)、RBT/CCT、能量等关系.结果 SMILE手术前、术后1周、术后1个月、术后3个月、术后6个月的散射光计量值分别为0.93±0.16、0.97±0.14、0.94±0.17、0.94±0.17、0.90±0.17,术后1周散射光计量值较术前稍增加,但差异无统计学意义,各时间点散射光计量值比较差异无统计学意义(F=2.253,P＞0.05);术后散射光计量值的变化与术中相关参数无明显相关性,仅在术后3个月散射光计量值与切口大小呈较弱正相关(r=-0.356,P＜0.01).结论 SMILE术后散射光计量值较术前虽有变化,但变化不明显,术后由散射变化造成视觉质量下降的可能性较小.
목적 탐토SMILE술후안내산사적변화,병대기상관영향인소진행분석.방법 전첨성병례연구.선취의행SMILE수술적근시급근시산광환자67례(67안),응용C-quant산사의분별측량환자수술전、술후1주、술후1개월、술후3개월급술후6개월안내산사광계량치,병여년령、구경도、등효구경도、CCT、각막평균곡솔치(Km)、각막곡솔반경등주상관분석,동시채용Pearson상관분석술후산사광계량치변화여각막모직경、소절구대소、절삭심도、절삭비、잉여각막후도(RBT)、RBT/CCT、능량등관계.결과 SMILE수술전、술후1주、술후1개월、술후3개월、술후6개월적산사광계량치분별위0.93±0.16、0.97±0.14、0.94±0.17、0.94±0.17、0.90±0.17,술후1주산사광계량치교술전초증가,단차이무통계학의의,각시간점산사광계량치비교차이무통계학의의(F=2.253,P＞0.05);술후산사광계량치적변화여술중상관삼수무명현상관성,부재술후3개월산사광계량치여절구대소정교약정상관(r=-0.356,P＜0.01).결론 SMILE술후산사광계량치교술전수유변화,단변화불명현,술후유산사변화조성시각질량하강적가능성교소.
Objective To investigate the characteristics and relevant factors of intraocular stray light before and after small incision lenticular extraction (SMILE).Methods In a prospective case study,67 myopic and myopic astigmatism patients (67 eyes) underwent SMILE surgery in Tianjin Eye Hospital.Stray light measurements were taken before SMILE surgery and 1 week,1 month,3 months and 6 months after surgery using an Oculus C-Quant stray light meter.Pearson correlation was used to identify correlations in stray light values for such factors as age,spherical equivalent refractive error,central corneal thickness (CCT),mean keratometric value,and corneal curvature radius as well as for surgical factors such as cap diameter,hinge width,ablation depth,ablation ratio,residual bed thickness,RBT/CCT and energy.Results The stray light values preoperatively,and 1 week,1 month,3 months and 6 months after SMILE surgery were 0.93±0.16,0.97±0.14,0.94±0.17,0.94±0.17,and 0.90±0.17,respectively.The mean stray light value was slightly higher 1 week after surgery but no significant differences were found.There were no significant differences when the various time points were compared (F=2.253,P＞0.05).While the changes in stray light values after surgery were not correlated with surgical parameters,there was a slight positive correlation with hinge width at 3 months after surgery (r=0.356,P＜0.01).Conclusion There are no significant differences in stray light between pre-and post-SMILE surgery.It may be possible that a change in stray light could cause a decrease in visual quality.