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目的探讨准分子激光角膜切削术（PRK）后发生上皮下浑浊（haze）的影响因素。方法216跟随机分两组，分别于术后使用拂炎和艾氟龙滴眼。术后1年按不同因素将haze进行统计学分析。结果两组间haze发生率比较P为0．028。术前不同屈光度（≤－6D与＞－6D）比较P为0．624。上皮刮除时间（＜30秒与＞1分钟）比较P为0.519。不同年龄组（≤25岁与≥35岁）比较P为0．366。结论PBK术后haze的发生率与使用不同强度皮质类固醇滴眼剂有关，与上皮刮除时间、术前屈光度和患者年龄无关。
Objective To investigate the influencing factors of subcutaneous haze after excimer laser keratectomy (PRK). Method 216 was randomized into two groups, with postoperative inflammation and efloxacin eye drops. One year after operation according to different factors haze statistical analysis. Results The incidence of haze between the two groups was P 0.028. Preoperative different diopters (≤-6D and> -6D) compared P was 0.624. Epithelial curettage time (<30 seconds vs.> 1 minute) compared P to 0.519. P> 0.366 for different age groups (≤25 years and ≥35 years). Conclusions The incidence of haze after PBK is related to the use of different intensity corticosteroids eye drops, and has nothing to do with the time of epithelial curettage, preoperative refraction and patient’s age.