Management of postkeratoplasty astigmatism.
Management of postkeratoplasty astigmatism.
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DOI：
10.1097/00055735-199808000-00004
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发表时间：
1998-08-01
影响因子：
3.7
通讯作者：
Price, F W Jr
中科院分区：
文献类型：
--
作者：
Riddle, H K Jr;Parker, D A;Price, F W Jr
许多因素导致穿透性角膜移植术后透明角膜移植成功率的提高。不幸的是，术后角膜散光经常发生，并可造成严重的视力损害。散光矫正可包括眼镜矫正或隐形眼镜，但如果这失败，则考虑手术选择。屈光手术技术，如缝线拆除或调整、放松切口、楔形切除、光屈光性角膜切除术或激光原位角膜磨光术，可以显著减少穿透性角膜移植术后的术后散光，并改善功能性视力。然而，个别患者的结果可能存在显著差异。因此，尽管通用指南是有用的，但重要的是根据定性角膜镜检查和角膜地形图对初始和随后的散光矫正进行个体化和修改计划手术。
Many factors have led to the improved success rate for clear corneal grafts after penetrating keratoplasty. Unfortunately, postoperative corneal astigmatism commonly occurs and can produce significant visual impairment. Astigmatic correction may include spectacle correction or contact lenses, but if this fails, then surgical options are considered. Refractive surgical techniques such as suture removal or adjustment, relaxing incisions, wedge resections, and photorefractive keratectomy or laser in situ keratomileusis can dramatically reduce postoperative astigmatism after penetrating keratoplasty and lead to improved, functional vision. However, significant variability between results in individual patients can occur. So although general guidelines are useful, it is important to individualize and modify the planned surgery based on qualitative keratoscopy and corneal topography for the initial and subsequent astigmatic corrections.