目的:评价中、高度近视选择LASEK术前的预防性视网膜光凝的疗效。方法:对中、高度近视患者279例551眼术前美多丽滴眼液充分散瞳后,用90D裂隙灯前置镜或三面镜详细检查眼底,明确有视网膜变性(格子样变性、蜗牛样变性、囊样变性等)或(伴)有干性裂孔共18例26眼,行倍频Nd:YAG532nm激光治疗并选择LASEK手术矫正近视。结果:对18例26眼行预防性倍频Nd:YAG532nm激光光凝术后周边视网膜变性及干性裂孔区封闭良好,色素斑形成明显。LASEK术后6～18mo随访,没有发生孔源性视网膜脱离。结论:对明确有视网膜变性或(伴)干性裂孔预防性行倍频Nd:YAG532nm激光光凝术及选择LASEK术矫正近视是预防准分子激光术后出现孔源性视网膜脱离的重要措施。

AIM:To appraise the curative effect of prophylactic retinal laser photocoagulation before laser epithelial keratomileusis (LASEK) for medium and high myopia.·METHODS:Mydrin eye-liquid was used to disperse pupils in 279 patients (551 eyes) with medium and high myopia before LASEK.Eyeground was examined carefully with 90D slit-light preset lens or three-mirror lens.It’s found that there’s obvious retinal degeneration in 18 cases of 26 eyes with grid style degeneration,snail style degeneration,bursa style degeneration and so on,or dry retinal hole at the same time.Double Nd∶YAG 532nm was used to perform laser treatment,and LASEK to correct myopia.·RESULTS:Preventive double Nd∶YAG 532nm was used to cure 18 cases of 26 eyes,after laser photocoagulation,the retinal degeneration and dry hole area have well-closed situation,the pigment patch formed obviously.6-18 months after LASEK surgery,there is no retinal detachment with random visits.·CONCLUSION:As for the eyes with obvious retinal degeneration or (with) dry retinal hole,prophylactic double Nd∶YAG 532nm laser photocoagulation surgery and choice of LASEK surgery to correct myopia are very important measures to prevent the occurrence of rhegmatogenous retinal detachment after excimer laser correction of myopia.

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