不同位置切口对逆规散光白内障术后角膜散光的影响  

Postoperative astigmatism following cataract surgery With Superior And Temporal Incisions in Cases Of Preoperative Against-The-Rule Astigmatism

作　　者：庄槿[1] 袁胤[1] 邱立红[1] 

机构地区：[1]上海市眼病防治中心,上海200040

出　　处：《中国实用眼科杂志》2005年第2期139-140,共2页Chinese Journal of Practical Ophthalmology

摘　　要：目的　针对术前存在逆规散光的患者 ,研究不同位置的白内障超声乳化手术切口所引起的手术散光 (SIA)以及其对术后角膜散光和裸眼视力的影响。方法　术前存在 <2D逆规散光的白内障患者 96例 ,12 6只眼 ,将其分为三组 ,分别采用颞侧角膜切口、上方角膜切口和上方巩膜隧道切口进行常规的 3 0mm超声乳化手术 ,观察分析术后角膜散光和裸眼视力情况 ,并做t检验。结果　采用上方角膜切口引起的手术散光 (SIA)最大 ,达到 1 5 1± 0 89(D) ,采用颞侧角膜切口的病人其术后散光最小 ,0 6 9± 0 6 6 (D) ,3个月时裸眼视力≥ 0 5的占 90 %。结论　对术前已经存在逆规散光的患者来讲 ,颞侧角膜切口有助于减小术后角膜散光 ,从而进一步提高术后裸眼视力。Objective To evaluate surgically induced astigmatism(SIA),postoperative astigmatism and uncorrected visual acuity(UCVA)after phacoemulsification with different incisions in cases of preoperative against-the-rule astigmatism.Methods 126 eyes with preoperative against-the-rule astigmatism were randomly assigned to 3 groups.They had phacoemulsification with different incisions separately:temporal corneal(group 1),superior corneal(group 2)and superior scleral tunnel(group 3).Postoperative astigmatism and UCVA were evaluated.Results Superior corneal incision resulted high SIA,which was 1 51±0 89(D).Temporal corneal incision resulted low postoperative astigmatism,which was 0 69±0 66(D).90% eyes in group 1 had UCVA 0 5 or better.Conclusions In cases of preoperative against-the-rule astigmatism,temporal corneal incision resulted low postoperative astigmatism and better uncorrected visual acuity(UCVA).

关 键 词：角膜切口 角膜散光 裸眼视力 白内障术后 术前 患者 后角 结论 位置 观察分析 

分 类 号：R779.66[医药卫生—眼科] R776.1[医药卫生—临床医学]