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目的 评价放射状角膜切开术（ＲＫ） 矫正准分子激光角膜切削术（ＰＲＫ） 后残余近视的安全性、有效性及有关并发症。 方法 分析１０ 例病人１４ 只眼用ＲＫ 手术矫正ＰＲＫ 后残余近视的屈光及视力变化。ＲＫ 后最短观察时间６ 个月。 结果 ３ 只眼（２１ ％ ） 接受１ 次ＰＲＫ 治疗，７ 只眼（５０ ％ ） 接受２ 次ＰＲＫ 治疗，４ 只眼（２９ ％ ） 接受３ 次ＰＲＫ 治疗。１１ 只眼（７９ ％ ） 接受４ 刀ＲＫ 术，３ 只眼（２１ ％ ） 接受８ 刀ＲＫ 术。所有病人ＲＫ 术后裸眼视力均提高。ＲＫ 术后６ 个月，屈光度较ＲＫ 前显著下降２ ．９３ Ｄ±１ ．５３ Ｄ（ Ｐ＜ ０ ．０５） 。 结论 ＲＫ 是矫正ＰＲＫ 术后残余近视的有效安全的方法
Objective To evaluate the safety, efficacy and related complications of residual myopia after radical keratotomy (RK) with excimer laser keratectomy (PRK). Methods The refraction and visual acuity of residual myopia after correction of PRK in 14 eyes of 10 patients with RK were analyzed. RK shortest observation time after 6 months. Results Three eyes (21%) received one PRK treatment, seven eyes (50%) received two PRKs and four eyes (29%) received three PRKs. Eleven eyes (79%) underwent 4-knife RK and 3 eyes (21%) underwent 8-knife RK. All patients RK uncorrected visual acuity were increased. At 6 months after RK, diopter decreased significantly compared with that before RK 2. 93 D ± 1. 53 D (P <0 .05). Conclusions RK is an effective and safe method to correct residual myopia after PRK