| 准分子激光角膜切削术后角膜地形图的临床观察 |
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| 引用本文： | 聂庆珠,归东梅,高殿文,盖春柳,曹永梅. 准分子激光角膜切削术后角膜地形图的临床观察[J]. 中国实用眼科杂志, 2001, 19(6): 422-423 |
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| 作者姓名： | 聂庆珠 归东梅 高殿文 盖春柳 曹永梅 |
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| 作者单位： | 1. 中国医科大学第二临床学院眼科,
2. 通化电厂职工医院眼科 |
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| 摘 要： | 目的：准分子激光角膜切削术（PRK）后进行角膜地形图的检测分析。方法：对113例（253眼）近视患者手术后1、3、6个月进行角膜地形图随访。结果：PRK术后能产生一种稳定的角膜外形，角膜地形图主要表现为四种形态：圆形或椭圆形（48．62％），对称或不对称形（28．06％），半球形（17．79％），中央小岛形（5．53％），且各种态与最佳视力有着一定的关系。术后6个月模拟角膜计读数（Simk)表现一定回退。Simk差值无显著性差异，说明PRK本身不引起散光。结论：角膜地形图定量分析对PRK术后角膜表面的改变、手术设计的改进、手术疗效的预测等是必要的。
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| 关 键 词： | 准分子激光屈光手术 角膜地形图 PRK 手术后 |
Changes in corneal topography after PRK |
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| Nie Qingzhu,Gui Dongmei,Cao Yongmei,Gao Dianwen,Xiao Feng,Gai Chunliu. Changes in corneal topography after PRK[J]. Chinese Journal of Practical Ophthalmology, 2001, 19(6): 422-423 |
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| Authors: | Nie Qingzhu Gui Dongmei Cao Yongmei Gao Dianwen Xiao Feng Gai Chunliu |
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| Affiliation: | Nie Qingzhu,Gui Dongmei,Cao Yongmei,Gao Dianwen,Xiao Feng,Gai Chunliu Department of Ophthalmology,The 2nd Hospital,China Medical University,Shenyang 110003 |
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| Abstract: | Objective: To measure and analyze the changes in corneal topography after PRK. Methods: 113 patients (253 eyes) with myopia who had undergone PRK were examined with computerized corneal topography at 1, 3 and 6 months after PRK. Results: There were 4 kinds of stable corneal morphology after PRK: round or oval (48.62 %), symmetrical or asymmetrical (28. 06 %), semi-circular (17.79 %) central-island (5.53 %). The index of Simulated keratometry (Simk) regressed partly at 6 months after operation and the changes in the Simk were not significant, Which confirmed that PRK itself did not cause astigmatism. Conclusions: Topography analysis is necessary for predicting the changes in corneal surface and the effect of therapy after PRK. |
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| Keywords: | PRK Corneal topography |
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