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采用美国ＣＯＨＥＲＥＮＴ公司生产的激光机，ＳＣＭＤ公司生产的气动式微型板层角膜刀，对近视度－１．５０Ｄ～－３２．００Ｄ６５７眼随机分成ＰＲＫ组（３３７眼）和ＬＡＳＩＫ组（３２０眼），随访３～１２月按低、中、高各屈光段分别统计。结果：术后ＰＲＫ痛苦多，视力恢复慢。达术前最佳矫正视力占９３．８％。ＬＡＳＩＫ术后无痛苦，视力恢复快，达术前最佳矫正视力占９５％。术后屈光度回退ＰＲＫ较ＬＡＳＩＫ快，Ｐ＜０．０１有显著差别。低、中、高各屈光段的屈光回退亦同样比ＬＡＳＩＫ快，各组Ｐ＜０．０１有显著差别。结论：ＬＡＳＩＫ治疗近视比ＰＲＫ稳定性好，不仅对高度近视疗效比ＰＲＫ好，对低、中度近视疗效亦优于ＰＲＫ。
Using the laser machine manufactured by COHERENT Company in the United States and the pneumatic micro-layer corneal knife produced by SCMD Company, the eyes with degree of myopia of -1.50D ~ -32.00D657 were randomly divided into PRK group (337 eyes) and LASIK group (320 eyes) Follow-up 3 to 12 months according to low, medium and high flexor segments were statistics. Results: Postoperative PRK more pain, vision recovery slow. Preoperative best corrected visual acuity accounted for 93.8%. No pain after LASIK, rapid visual acuity, preoperative best corrected visual acuity accounted for 95%. Postoperative reflex PRK LASIK faster, P <0.01 significant difference. Lower, middle and high flexion segments of the refractive regression is also faster than LASIK, P <0.01 each group were significantly different. Conclusion: LASIK is more stable than PRK in the treatment of myopia. It not only has a better curative effect than PRK in high myopia, but also has a better curative effect than PRK in low and moderate myopia.