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本研究应用角膜地形图仪对３０ 只近视眼的角膜形态进行分析，结果表明：角膜镜影象第１环与第１５ 环、第１ 环与第２５ 环及最大一环与最小一环平均屈光力的差值分别为０－６３ ±０－６２Ｄ、２－２３ ±１－１３Ｄ 和２－３０ ±１－０４Ｄ，角膜中央屈光力为４３－９５ ±１－３６Ｄ，同一病人两眼角膜中央屈光力的差值为０－８８ ±０－８２Ｄ，角膜平均表面规则指数（ＳＲＩ） 为０－６４ ±０－３２ 、表面不规则指数（ＳＡＩ） 为０－４０ ±０－２２ ；Ｓｉｍ Ｋ值及Ｓｉｍ Ｋ 的差值分别为４５－０２ ±１－５２Ｄ 和１－９１ ±１－２８Ｄ；ＩＳ值为０－１１ ±０－４６Ｄ。近视眼的角膜地形图大致呈３ 种形态，圆形或近圆形７ 只眼（２３－３ ％ ） ，对称或不对称的８ 字形２０ 只眼（６６－７ ％ ） ，不规则形３只眼（１０ ％ ） 。提示近视眼的角膜地形图分析将有助于了解其角膜的屈光状态。
In this study, corneal topography was used to analyze the corneal morphology of 30 myopia. The results showed that the first and the 15th ring, the first ring and the 25th ring, the largest ring and the smallest ring average power The difference was 0-63 ± 0-62D, 2-23 ± 1-13D and 2-30 ± 1-04D, corneal central refractive power of 43-95 ± 1-36D, corneal central refractive power difference between the two eyes of the same patient The value of 0-88 ± 0-82D, the average corneal surface index (SRI) of 0-64 ± 0-32, the surface irregularity index (SAI) of 0-40 ± 0-22; Sim K value and Sim K Differences were 45-02 ± 1-52D and 1-91 ± 1-28D; I S value of 0-11 ± 0-46D. Myopia corneal topography was roughly 3 kinds of morphology, circular or nearly circular seven eyes (23-3%), symmetrical or asymmetric zigzag 20 eyes (66-7%), three irregular Eye (10%). Myopic corneal topography analysis will help to understand the corneal refractive status.