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为探讨准分子激光原位角膜磨镶术（ｅｘｃｉｍｅｒＬａｓｅｒｉｎｓｉｔｕｋｅｒａｔｏｍｉｌｅｕｓｉｓＬＡＳＩＫ）在准分子激光屈光性角膜切削术（ｐｈｏｔｏｒｅ－ｆｒａｃｔｉｖｅｋｅｒａｔｅｃｔｏｍｙＰＲＫ）治疗中、高度近视后，屈光回退的疗效，用波长１９３ｎｍ的ＡｒＦ准分子激光对２７人（４８眼）行ＰＲＫ后屈光回退的患眼，再行ＬＡＳＩＫ，其中４眼在ＰＲＫ后１０个月施行，４４眼在ＰＲＫ后１年～１年半施行。结果：ＰＲＫ术后屈光回退为－１．７５Ｄ～１２．２５Ｄ平均为－５．４４Ｄ±３．０９Ｄ；再手术后，随访３～１０个月，４３眼的屈光度在±１．００Ｄ之内，５眼有－３．００Ｄ的欠矫。４５眼的裸眼视力达到或超过术前矫正视力，３眼低于术前矫正视力。结论：ＰＲＫ后的屈光回退可行ＬＡＳＩＫ再矫正，手术方法与第一次行ＬＡＳＩＫ完全相同，再次手术时间应在ＰＲＫ后一年以上。
To investigate the effect of excimer laser in situ keratomileusis (LASIK) on laser photorefractive keratectomy (PRK) in the treatment of high myopia and refractive regression, using an ArF excimer Laser in 27 eyes (48 eyes) underwent PRK retroreflection eyes, followed by LASIK, of which 4 eyes were performed 10 months after PRK and 44 eyes were performed 1 to 1 year and a half after PRK. Results: PRK postoperative refractive regression -1.75D ~ 12.25D average of -5.44D ± 3.09D; reoperation, followed up for 3 to 10 months, 43 eyes refraction ± 1.00D Within 5 eyes, -3.00D had undercorrection. 45 eyes of uncorrected visual acuity reached or exceeded preoperative corrected visual acuity, 3 eyes were lower than preoperative corrected visual acuity. CONCLUSION: Refractive regression after PRK can be corrected by LASIK. The surgical procedure is the same as the first LASIK. Reoperation time should be more than one year after PRK.