简介:目的:探讨中老年屈光异常性视疲劳与干眼症的联系,以及戴镜屈光矫正对干眼症治疗疗效的影响。方法:按照统一标准,门诊随机调查视疲劳的患者,分析其中屈光不正性视疲劳的患病率。在视疲劳的患者中调查干眼症的发生情况,分析屈光不正性视疲劳与干眼症的联系。再把干眼症合并屈光异常性视疲劳患者随机分为戴镜治疗、药物治疗和对照组,治疗3mo,观察干眼症的治疗效果。结果:40岁以上视疲劳的患者中因屈光不正而引起的占42.0%。屈光不正性视疲劳与干眼症存在显著联系(P〈0.05)。随访3mo,戴镜治疗组干眼症状好转明显高于药物治疗组(P〈0.05)。结论:中老年屈光异常性视疲劳与干眼症存在紧密联系,戴镜矫正治疗屈光异常性视疲劳可以明显改善干眼症状。
简介:目的:研究老年黄斑变性的光学相干断层扫描(opticalcoherencetomography,OCT)特征。方法:对经眼底荧光造影(fundusfluoresceinangiography,FFA)确诊的老年黄斑变性患者43例45眼,其中湿性型28例30眼、干性型15例15眼,按年龄匹配的正常人30例43眼利用OCT分别进行检测。观察黄斑部神经纤维层(nervefiberlayerofmacular,MNFL)、色素上皮/脉络膜毛细血管复合层(retinalpigmentepithelium/choriocapillaris,RPE/CC)及视网膜神经上皮层(retinalneurepitheliumlayer,RNE)的厚度变化。应用秩和检验比较其差异性。结果:MNFL厚度:湿性型老年黄斑变性组为76.5±51.7μm、干性型老年黄斑变性组为32.5±7.6μm、正常对照组为27.7±6.4μm,湿性型组与其他组比较差异有显著性(P〈0.05)。RNE厚度:湿性型老年黄斑变性组为307.1±130.8μm、正常对照组为239.9±13.4μm、干性型老年黄斑变性组为223.4±22.6μm,湿性型组与其他组比较差异有显著性(P〈0.05)。RPE/CC厚度:湿性型老年黄斑变性组为115.3±30.6μm、干性型老年黄斑变性组为81.7±20.4μm、正常对照组为76.4±11.5μm,湿性型组与其他组比较差异有显著性(P〈0.05)。结论:黄斑部神经纤维层厚度、视网膜神经上皮层厚度及色素上皮/脉络膜毛细血管复合层厚度随着老年黄斑变性病程的发展,其厚度增加。OCT可以作为湿性型老年黄斑变性发生与发展的监测工具之一。
简介:AIM:Toinvestigatethefrequencyofidiopathicphacodonesis(IP)insenilecataractsubjectsandtheshort-termclinicaloutcomesfollowingcataractsurgery.METHODS:Thisinstitutionalcase-controlstudyincluded1301consecutivelow-incomecataractsubjectsfromJunetoNovember2009.Anteriorsegmentwerecarefullyevaluatedwithdilatedpupilunderslit-lamp.IPwerescreenedandgradedbyacriteriasetbytheauthors.Riskfactors,surgicaloutcomes,andoperativecomplicationswereanalyzed.RESULTS:Atotalof42subjects(3.2%)withIPwerediagnosedandclassifiedasgrade1(36subjects),grade2(5subjects)andgrade3(1subject).HarderlensesandintumescentcataractswereobservedintheIPgroupthanthecontrolgroup(P<0.05).Logisticsregressiontestalsoindicatedthemainriskfactorwasthehardnessofthelens.Theincidenceofzonulardialysisduringsurgerywas23.8%(10eyes),whichwassignificantlyhigherthanthecontrols(0.7%,P<0.001).Visualoutcomesofthetwogroupswerenotstatisticallyorclinicallysignificant.CONCLUSION:HardnucleusandintumescentcataractarerelatedtoIPinsenilecataractsubjectsinQinghai,China.Withmorecarebeingtaken,grade1andsomeofthegrade2IPsubjectsachievedsimilarsurgicaloutcomesascomparedtocontrols.