CORNEAL ASTIGMATISM FOLLOWING PENETRATING KERATOPLASTY

在穿透性角膜移植术后的并发症中， 散光既普遍又重要，因为它会阻碍好的 其他方面正常的眼睛的视力。这项研究的目的是 以随机、前瞻性的方式评价两种缝合方法 120例穿透性角膜移植患者的置入与取出 这些方法中的一种，利用双循环缝合，是最 使用中常用的方法。另一种方法，利用单个 连续缝合和12次间断缝合被一些人认为是一种 减少角膜移植术后散光的方法。 两个结果指标将在两组之间进行比较-角膜曲率计 角膜移植术后6个月的散光和视力恢复时间 20/40或更高。有关这些成果衡量标准的信息将有助于 努力控制角膜轮廓不规则性并加速 视力的恢复。

Among the postoperative complications following penetrating keratoplasty, astigmatism is both prevalent and important, since it can prevent good vision in an otherwise normal eye. The purpose of this study is to evaluate, in a randomized, prospective manner, two methods of suture placement and removal in 120 patients undergoing penetrating keratoplasty. One of these methods, utilizing double-running sutures, is the most commonly employed method in use. The other method, utilizing a single running suture and 12 interrupted sutures, has been advocated by some as a way to reduce post-keratoplasty astigmatism. Two outcome measures will be compared between the groups -- keratometric astigmatism at six months post-keratoplasty, and time to visual recovery of 20/40 or better. Information on these outcome measures will contribute toward efforts to control corneal contour irregularity and to hasten recovery of visual acuity.