摘要
目的 :研究白内障小切口术后角膜形态变化特点。方法 :用角膜地形图对 2 7例 (34眼 )白内障小切口手术患者进行检查 ,分析其术前 ,术后 1周、1月、3月的角膜地形图变化。结果 :术后 1周仅产生手术源性散光 0 .5 2D ,术后 1月角膜散光及CIM值 (角膜不规则系数 )趋向稳定 ,裸眼视力≥ 0 .5占 2 6眼 (76 .42 % ) ,SF值(角膜形状系数 )术前术后无明显变化。结论 :小切口具有早期角膜形态变化小、散光稳定、视力恢复快等优点 ,角膜地形图可准确全面反映白内障术后角膜形态变化。
Objective:To study corneal topographic changes after cataract surgery through small incision.Methods:Corneal topography of 34 eyes in 27 patients who had undergone small incision cataract surgery was analyzed preoperatively and at 1 week, 1 month, 3 months postoperatively. Results:Surgically induced astigmatic change of 0.52D was observed at 1 week postoperatively. Corneal astigmatism and CIM remained quite stable 1 month after surgery. 26 eyes(76.42%) obtained uncorrected visual acuity to 0.5 or better. Compared with preoperative statistics, no significant change of SF was found postoperatively.Conclusion:The results suggested that the small incision produces less astigmatism postoperatively, faster postoperative recovery, less corneal topographic change early after surgery. Computerized videokeratography system is an effective way to measure precisely the change of corneal topography after cataract surgery.
出处
《眼视光学杂志》
2001年第1期40-41,共2页
Chinese Journal of Optometry & Ophthalmology
基金
温州医学院附属二院资助!课题 (1999~ 2 0 0 0 )
关键词
白内障摘除术
角膜地形图
散光
cataract extraction
corneal topography
astigmatism
