摘要
应用角膜地形图分析系统对 2 0例 (2 8眼 )行白内障超声乳化摘除及折叠式人工晶体植入术的患者进行角膜地形图检查 ,比较手术前后的 SAI值、角膜散光及切口处周边角膜曲率。结果 :术后 1个月的 SAI值明显高于术前 (P<0 .0 0 1) ,术后角膜散光仅比术前增加 0 .11D(P>0 .0 5 ) ,但轴位发生明显改变。切口所在子午线的周边角膜较术前平坦 ,平均为 0 .49D(P<0 .0 5 )。结论 :白内障超声乳化摘除及折叠式人工晶体植入术后角膜散光未增加 ,但轴位改变 ;角膜表面变得非常不对称 ,角膜地形图分析系统较角膜曲率计更适于白内障术后角膜形态及散光的评估 ;切口处的周边角膜变平坦 。
Department of Ophthalmology, Peking Union Hospital, Peking Union Medical college, Chinese Academy of Medical Science, Beijing 100730 Objective: To evaluate the changes in corneal shape after phacoemulsification combining with foldable IOL transplantation under topographic analysis. Method: 28 eyes of 20 patients who underwent cataract surgery were examined with corneal topography preoperatively as well as 1 month after surgery, comparing the values of SAI, corneal astigmatism and peripheral corneal curvature at incision meridian. Result: One month after surgery, the value of SAI was higher than that of SAI before operation (p<0.001); the corneal astigmatism was increased only 0.11D after surgery (P<0.05), but the axis changed obviously; the peripheral corneal at incision meridian flattened, the average value was 0.49D (P<0.05). Conclusions: After the cataract surgery, the axis of corneal astigmatism changed obviously; the surface of corneal became very asymmetric, and corneal topography is more suitable than keratometer in evaluating corneal shape and curvature after cataract surgery. It is possible to decrease postoperative astigmatism by selecting an appropriate incision site.
出处
《中国实用眼科杂志》
CSCD
北大核心
2001年第11期832-834,共3页
Chinese Journal of Practical Ophthalmology
