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目的 :展示放射状角膜切开术 (Radial Keratotomy,RK)行准分子激光角膜原位磨镶 (L aser in situ keratomileusis,L ASIK)增进手术的结果。方法 :10例患者 (16眼 )于 RK手术后行 L ASIK纠正残留的近视和远视。 L ASIK术前的平均屈光度为 - 3.14± 3.0 4D (- 6 .6 75 D～± 6 D) ,最佳纠正视力为 2 0 / 2 0者有 9眼 ,2 0 / 2 5者有 6眼 ,2 0 / 30者有 1眼。裸眼视力只有 2眼好于 2 0 / 40。患者术后平均随访时间为 7.5 3个月 (1个月～ 17个月 )。结果 :所有病例均接受了一次增进手术 ,术后最后一次随访的平均屈光度为 +0 .16± 0 .6 8D (- 1.0 0 D～ +1.75 D) ,所有病例无视力下降。裸眼视力为 2 0 / 2 0者有 9眼 ,2 0 / 2 5者有 6眼 ,2 0 /30者有 1眼。有一例患者双眼在术中发生以前的 RK切口裂开。结论 :L ASIK对于 RK术后残留的近视和远视是非常有效的 ,更长期的随访有待继续评价
OBJECTIVE: To demonstrate the results of Radial Keratotomy (RK) under laser in situ keratomileusis (LASIK). METHODS: Ten patients (16 eyes) underwent L ASIK to correct residual myopia and hyperopia after RK surgery. The mean refraction before LASIK was - 3.14 ± 3.0 4D (-6.675 D ± 6 D), with 9 eyes best corrected for visual acuity 20/20 and 6 eyes 20/25 , 1 in 20/30. Uncorrected visual acuity was only 2 eyes better than 2 0/40. The average follow-up time was 7.53 months (1 month to 17 months). RESULTS: All cases underwent an incremental surgery. The mean refraction at the last follow-up was +0.16 ± 0.68D (-1.0 D to +1.75 D), with no reduction in all cases. There were 9 eyes with 20/20 naked eyes, 20 eyes with 20/2 5 eyes and 1 eyes with 20/30 eyes. In one patient, the RK incision was split before the operation occurred in the patient’s eye. CONCLUSIONS: L ASIK is effective for residual myopia and hyperopia after RK, and longer follow-up remains to be evaluated