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评价角膜弧形切开术（ＡＫ）治疗自然发生的角膜散光的安全性、有效性及有关并发症。方法：分析１５例病人２５只眼接受本术式治疗的情况，观察角膜散光的改变，包括混合性散光和复性近视散光。手术方法包括单纯ＡＫ或ＡＫ联合放射状角膜切开术（ＲＫ）。术后最短观察时间为２４个月。用Ｈｏｌｌａｄａｙ，Ｃｒａｖｙ，Ｋｏｃｈ矢量分析法评价病人术后１个月、１年及２年屈光及角膜散光的改变。１０只眼（４０．０％）接受单纯ＡＫ治疗，１５只眼（６０．０％）接受ＡＫ联合ＲＫ治疗，２１只眼（８４．０％）接受再次手术。结果：经矢量分析，单纯行ＡＫ者术后２年散光下降（３．３０±１．３２）Ｄ（ ｔ＝ ７．３４， Ｐ＜ ０．０５），行ＡＫ联合ＲＫ者术后２年散光减少（２．７１±１．５３）Ｄ（ｔ＝６．３２，Ｐ＜０．０５）。所有病人术后无任何并发症。结论：角膜弧形切开术是治疗自然发生角膜散光的有效安全方法。
To evaluate the safety, efficacy and complications of corneal astigmatism (AK) in the treatment of naturally occurring corneal astigmatism. Methods: Twenty - five eyes of 15 patients undergoing the operation were analyzed. Changes of corneal astigmatism were observed, including mixed astigmatism and myopic astigmatism. Surgical methods include simple AK or AK combined with radial keratotomy (RK). The shortest observation time was 24 months. Holladay, Cravy, Koch vector analysis of patients after 1 month, 1 year and 2 years of refractive and corneal astigmatism changes. Ten eyes (40.0%) received AK alone, 15 eyes (60.0%) received AK plus RK, and 21 eyes (84.0%) underwent reoperation. Results: The results of vector analysis showed that astigmatism decreased in AK group (3.30 ± 1.32) D (t = 7.34, P <0.05) Reduce (2.71 ± 1.53) D (t = 6.32, P <0.05). All patients without any complications after surgery. Conclusion: Corneal incision is an effective and safe method of treating corneal astigmatism.