摘要
的 用角膜地形图分析白内障囊外摘出联合后房型人工晶状体植入术前、术后角膜散光的变化及拆除部分相关缝线后散光改善的情况。方法 作 3 0只眼术前、术后 12周角膜地形图 ,根据结果拆除相关缝线 ,4周后再复查角膜地形图。结果 术后 12周角膜垂直轴散光度比术前明显增高。拆除相关缝线 4周后散光度减少 ,视力比拆线前提高。结论 术后角膜垂直轴散光明显增高是由于手术缝线过紧所致。拆除相关缝线是减少术后角膜散光改善视力的有效方法之一。
Objective To investigate the changes of corneal astigmatism by corneal topography before and after extracapsular cataract extraction combined with intraocular lens implantation and to evaluate the improvement of corneal astigmatism after relevant suture removal. Methods Corneal topography was performed before surgery and 12 weeks after operation,and 4 weeks after the relative axis suture was removed. Results 12 weeks after the operation,the corneal astigmatism on vertical axis increased obviously.At 4 weeks after the relevant suture removal,with the decreasing of astigmatism,the visual acuity was increased. Conclusion The obvious increasing of the degree of astigmatism on vertical axis after the operation is probably due to the sutures were too tight.Removing the relevant sutures is one of the efficient methods to reduce corneal astigmatism and to improve the visual acuity after the operation.
出处
《眼科研究》
CSCD
1999年第5期367-369,共3页
Chinese Ophthalmic Research
关键词
角膜地形图
散光
白内障
人工晶体植入术
corneal topography astigmatism extracapsular cataract extraction suture removal
