高龄患者白内障术后低视力的临床分析

目的 分析80岁以上高龄白内障患者,行白内障摘除术后非手术原因造成的术后低视力的原因.方法 回顾性分析129例(138只眼)高龄白内障患者的相关临床资料.术前综合因素评估,严格掌握手术适应证和手术禁忌证,12例(14只眼)患者因术前发现无法耐受手术及手术后视力无法提高而放弃手术.术中采取心电监护和持续低流量吸氧,对117例(124只眼)高龄白内障患者施行超声乳化或小切口白内障摘除联合人工晶状体植入术.术后随访4～12(平均7.2月).结果 术后1周最佳矫正视力＜0.05者3例(4只眼2.6%),0.05至＜0.3者23例(27只眼,19.6%),≥0.3者91例(93只眼,77.8%).术前与术后1周最佳矫正视力差异有统计学意义(P＜0.05).手术脱残率为72.3%,脱盲率为92.1%.术后矫正视力低于0.3的26例中,2例黄斑囊样水肿,1例外伤性白内障术后发生视网膜脱离并发症,其余23只眼均有不同程度的眼底病变存在.结论 随着显微手术技术的不断发展,白内障手术并发症已明显减少.白内障术后低视力的原因主要为患者自身眼底病变.

Clinical analysis of low vision after cataract extraction in advanced aged patients

Objective To analyse non surgical causes of low vision after cataract extraction in advanced aged patients.Methods the authors performed a retrospectives study in 129(138 eyes)senior patients in the past 4 years.twelve cases (14 eyes)did not have surgery due to impossible to tolerate the operation or impossible to obtain improvement of visual acuity after operation.Monitored by EKG and supplied by constant inhalation of low dose oxygen,117 cased (124 eyes) with phacoemulsification or non-phacoemulsification cataract extraction of small incision,Aider follow up for 4～12 months (mean 7.2 months)Results 91 cases(93eyes) had a best corrected visual acuity (BCVA) equalor more than20/60(77.8％);23 cases(27 eyes) had BCVA of 20/400 or less than 20/60 (19.7％);and 3 cases(4 eyes) had BCVA less than 20/400(2.6％).Conclusions The key factor affected vision restoration was original ocular diseases.