【摘要】 目的:评价准分子激光屈光性角膜切削术(photorefractive keratectomy PRK)术后屈光状态的变化。方法:将随访2年、资料完整的PRK术后的234例(391眼)患者分为两组:Ⅰ组为低中度组(<6.00D)228眼,Ⅱ组为高度组(>6.00D)163眼,分别对术后3、6、12、24个月的屈光状态进行随访。结果:PRK术后2年屈光回退高于-0.5D、过矫、欠矫>1D、术后残留散光、手术性散光、远视漂移等发生率在低中度组分别为1.7％、4.4％、5.7％、12.8％、7.4％、7.5％。在高度近视组分别为15.9％、4.9％、23.3％、29.7％、31.1％、6.7％。结论:从屈光状态变化的分析更进一步证实PRK对治疗低中度近视眼是一种准确、稳定、安全、有效、能预测的好方法,而对高度近视眼的治疗效果稍差。眼科学报2000;16:143-145。更多还原

【Abstract】 Objective: To evaluate refractive state aiter excitner laser photorefractive keratectomy (PRK) in patients with myopia.Methods: 234 cases(391 eyes) followed up for two years were divided into two groups, group I: mild and moderate myopia(≤-6. 00 D) , 228 eyes; group Ⅱ: High myopia( >-6. 00 D), 163 eyes. The refractive state of patients at three, six, twelve and twenty-four months postoperatively were monitored.Results: At two years after photorefractive keratectomy (PRK), refractive regression ( > -0. 5 D) , overcorrection ( > 1. 00 D) , undercorrection( > 1. 00 D), postoperative residua] astigmatism postoperative astigmatism and hyperopia shift in group I were 1.7%, 4. 4% , 5. 7% , 12. 8% , 7. 4% and 7. 5% respectively, while in high myopia group were 15. 9% ,4. 9% ,23. 3% ,29. 7% ,31. 1% and 6. 7% respectively. Conclusion: The results prove that photorefractive keratectomy is an effective , precise , stable and safe method for correction of mild and moderate myopia, but insufficient for high myopia. Eye Science 2000; 16: 143 - 145.更多还原