【摘要】 目的 探讨鼻上方角膜瓣在准分子激光角膜原位磨镶术(LASIK)中的应用及疗效。方法 观察120例(240眼)近视、散光眼，将同一个体随机一眼作鼻上方角膜瓣为A眼，另一眼作正上方角膜瓣为B眼。术后随访3个月，两组进行临床疗效比较和泪液测试。结果 LASIK矫治屈光不正作鼻上方角膜瓣和作正上方角膜瓣临床应用及疗效差异无显著性。Schirmer测试显示生成鼻上方角膜瓣略优于正上方角膜瓣。结论 LASIK矫治屈光不正可作鼻上方角膜瓣，并可部分减少干眼症状的发生。在右眼散光轴90°～120°，左眼散光轴60°～90°的散光切削时，能有效保护角膜瓣。

    Liu Xiaoping，Liu Xiaojun，Liu Huantai，et al.

    Ophthalmic Center，Humen Hospital of TCM，Dongguan523900.

    【Abstract】 Objective To explore the application and effect of corneal flap in upper part of nose in LASIK.Methods 120cases(240eyes)with myopia and astigmatismwere observed.One of the same individual eyes was chosen randomly as A eye for cornea flap in the upper part of nose，and the other eye as B eye for cornea flap in the right upper part.In post-LASIK3months the clinical effects were compared between the two groups and tear liquid was examined.Results No significant difference was found between the applications and effects of the cornea flaps in the upper part of nose and the right upper part.It is indicated in Schirmer Test that the cornea flap in the upper part of nose had advantage than that in the right upper part.Conclusion LASIK is applicable for ametropia treatment in the cornea flap in the upˉper part of nose ......