CAJ | 학술논문

目的探讨高度近视行准分子激光原位角膜磨镶(LASIK)术后早期,暗环境下对比敏感度的变化及相关因素对对比敏感度的影响.方法随机收集66例66眼高度近视眼,观察其手术前后对比敏感度的变化及相关因素的影响.结果术后1个月,暗环境下低频段(3c/d)、中频段(6、12)和高频段(18c/d)对比敏感度均较术前下降,术后6个月低频段对比敏感度可恢复至术前水平,但中和高频段对比敏感度尚未恢复至术前水平.术前屈光度与术前和术后的对比敏感度均呈负相关,手术切削光区直径的大小与术后对比敏感度呈正相关,术前和术后1个月、3个月与6个月有眩光时对比敏感度均较无眩光时对比敏感度低.结论高度近视LASIK术后暗环境下对比敏感度下降；对比敏感度与术前屈光度呈负相关、与手术切削光区直径呈正相关；眩光降低对比敏感度.
목적 탐토고도근시행준분자격광원위각막마양(LASIK)술후조기,암배경하대비민감도적변화급상관인소대대비민감도적영향.방법 수궤수집66례66안고도근시안,관찰기수술전후대비민감도적변화급상관인소적영향.결과 술후1개월,암배경하저빈단(3c/d)、중빈단(6、12)화고빈단(18c/d)대비민감도균교술전하강,술후6개월저빈단대비민감도가회복지술전수평,단중화고빈단대비민감도상미회복지술전수평.술전굴광도여술전화술후적대비민감도균정부상관,수술절삭광구직경적대소여술후대비민감도정정상관,술전화술후1개월、3개월여6개월유현광시대비민감도균교무현광시대비민감도저.결론 고도근시LASIK술후암배경하대비민감도하강；대비민감도여술전굴광도정부상관、여수술절삭광구직경정정상관；현광강저대비민감도.
Objective To investigate the early change of contrast sensitivity(CS) and the effects of correlative factors on CS after laser in situ keratomileusis (LASIK) under mesopic conditions.Methods In this prospective study,66 cases 66 high myopia eyes were collected randomly to observe the changes of contrast sensitivity preoperatively and postoperatively,and the effects of correlative factors were analyzed.Results 1 month after operation,mesopic CS decreased in low spatial frequencies(3 cycle/degree) 、medium spatial frequencies (6、12cycle/degree) and high spatial frequencies (18cycle/degree) CS ;6 months after operation,low spatial frequencies CS restored to preoperative level,but medium and high spatial frequencies CS were not restored preoperative level.Preoperative dioptre was negatively correlated with preoperative and postoperative contrast sensitivity;The diameter of surgery ablation was positively correlated with postoperative contrast sensitivity;The CS with glare was lower than CS without glare preoperatively and 1 month,3 months and 6months postoperatively.Conclusion The CS under mesopic condition decreased after LASIK for high myopia.It is negatively correlated with preoperative dioptre and positively correlated with the diameter of surgery ablation.Glare has influence on contrast sensitivity.