El-Kasaby H T, McDonnell P J, Deutsch J
Birmingham and Midland Eye Hospital, UK.
Eye (Lond). 1995;9 ( Pt 6):719-21. doi: 10.1038/eye.1995.183.
One of the main aims of small incisions in cataract surgery is to reduce surgically induced astigmatism to a minimum. A prospective study was set up to compare sutured with unsutured 6 mm scleral pocket frown incision wounds for phacoemulsification. Videokeratography was used to study the topographical changes induced by surgery. Two groups of 15 patients were allocated to have either sutured or unsutured 6 mm frown incisions for their phacoemulsification. Videokeratography was performed 1 day pre-operatively, and repeated 6 weeks post-operatively. Statistical analysis of the resultant data is discussed. The results show a modest flattening in the vertical meridian in both groups of patients which was slightly larger in the unsutured group. The astigmatic change did not differ significantly between the two groups. The 6 mm scleral pocket incisions induce a small amount of astigmatism whether sutured or unsutured. However, we felt it was perhaps safer to suture an incision of that size. Videokeratography is an invaluable tool for collection of outcome audit data, and allows for accurate graphical assessment of the effect of differing surgical approaches.
白内障手术中做小切口的主要目的之一是将手术引起的散光降至最低。开展了一项前瞻性研究，比较用于超声乳化术的6毫米巩膜隧道反眉切口缝合与未缝合的伤口情况。使用角膜地形图仪研究手术引起的地形变化。两组各15例患者被分配接受超声乳化术的6毫米反眉切口缝合或未缝合处理。术前1天进行角膜地形图检查，并在术后6周重复检查。对所得数据进行了统计分析讨论。结果显示两组患者的垂直子午线均有适度变平，未缝合组略大。两组之间的散光变化无显著差异。6毫米巩膜隧道切口无论缝合与否都会引起少量散光。然而，我们认为缝合这种大小的切口可能更安全。角膜地形图仪是收集结果审计数据的宝贵工具，可对不同手术方式的效果进行准确的图形评估。
