简介:目的:了解青光眼小梁切除手术前后泪膜的变化,探讨青光眼小梁切除术后干眼的发病情况和防治措施。方法:对青光眼患者36例60眼在行小梁切除术前3d;术后3,7,14,30d进行详细的眼科检查。检查内容包括:下睑中央泪河高度、泪膜破裂时间(break-uptime,BUT)、基础泪液分泌试验(SchirmerⅠtest,SⅠt)、裂隙灯显微镜下角膜荧光素染色评分。结果:与术前相比,术后3,7d,下睑中央泪河高度下降,BUT缩短,SⅠt减少,角膜荧光素染色评分增加。大部分患眼术后14d,下睑中央泪河高度、BUT、SⅠt、角膜荧光素染色评分开始恢复,到术后30d,有22%的患眼泪膜未能恢复至术前水平;术前泪膜正常的患眼中有18%发生干眼症。结论:青光眼小梁切除术可影响泪膜的稳定性,部分患者出现明显的干眼症,应及时给予干预和治疗。
简介:目的调查上海市奉贤区奉城镇60岁以上老年人群干眼的患病率及相关影响因素。方法2013年6~12月对上海市奉贤区奉城镇60岁以上人群采用随机整群分组抽样法,进行问卷调查,对有阳性症状的受检者做裸眼视力、裂隙灯、基础泪液分泌试验(SⅠt)、泪膜破裂时间(BUT)、角膜荧光素染色(FL)、睑板腺功能检查。结果随机抽取受检者2387例,实际受检者2058例,应答率为86.2%。受检者中干眼患者295例,患病率为14.3%,女性患病率为18.0%(208/1153),男性患病率为9.6%(87/905),女性高于男性(χ^2=29.22,P〈0.05);80岁以上人群的干眼患病率为21.3%,70~79岁为15.8%,60~69岁为9.2%(χ^2=36.61,P〈0.005)。结论上海市奉贤区奉城镇60岁以上人群中,女性的干眼患病率高于男性。干眼患病率随年龄增长而升高,眼干涩、视疲劳、异物感为最常见症状,局部及全身多种因素均影响干眼的发生。干眼的社区防治对郊区眼病防治工作有着重要的意义。
简介:AIM:Toassesstheawarenessofeyecomplicationsandtheprevalenceofretinopathy,inthefirstvisittoeyeclinic,amongtype2diabeticpatientsattendingatertiarymedicalcentreinKualaLumpur,Malaysia.METHODS:Aninvestigator-administeredquestionnairewasgivento137patientswithdiabetesundergoingfirsttimeeyescreeningintheeyeclinic.Thiswasfollowedbyadetailedfundusexaminationbyaseniorophthalmologisttoassessforpresenceofretinopathy.RESULTS:Almost86%ofrespondentswereawareofdiabeticeyecomplications,especiallyinpatientswhohadachievedtertiaryeducationallevel(96.3%).Themajorityofthepatients(78.8%)werereferredbytheirphysiciansandonly20.4%cameontheirowninitiative.Manyofthepatients(43.8%)didnotknowhowfrequenttheyshouldgoforaneyecheck-upand72.3%didnotknowwhattreatmentswereavailable.Lackofunderstandingondiabeticeyediseases(68.6%)wasthemainbarrierformostpatientsfornotcomingforeyescreeningearlier.Despiteahighlevelofawareness,only21.9%hadrecordedHbA1clevelof<6.5%while31.4%wereundertheerroneousassumptionofhavingagoodbloodsugarcontrol.Atotalof29.2%haddiabeticretinopathyintheirfirstvisiteyetesting.CONCLUSION:Inthepresentstudy,29.2%oftype2diabeticpatientshadretinopathyintheirfirsttimeeyetesting.Althoughtheawarenessofdiabeticeyecomplicationswashighamongfirsttimeeyescreeningpatients,theappropriateeyecare-seekingbehaviorwascomparativelylessandshouldberectifiedtopreventtheriseofthissightthreateningeyedisease.
简介:目的检测糖尿病视网膜病变(DR)患者经曲安奈德治疗后,眼动脉、视网膜中央动脉收缩期血流速峰值(PeakSystolicVelocity;PSV)的变化,探讨曲安奈德对其血流动力学的影响。方法对13例糖尿病视网膜病变患者(13只眼)经玻璃体腔注射曲安奈德治疗前后,应用彩色多普勒超声成像技术对比研究眼动脉及视网膜中央动脉的收缩期血流速峰值(PSV)的变化。所有患者都随访3个月,分别于治疗后1周、1个月、3个月测量眼动脉及视网膜中央动脉的收缩期血流速峰值。结果所有患者都完成了治疗并随访3个月,视网膜中央动脉(CRA)的收缩期血流速峰值(PSV)在治疗前与治疗后1周,无明显差别(P〉0.05)。在治疗前与治疗后1月,3月两时间点上测量,眼动脉(OA)及视网膜中央动脉(CRA)的收缩期血流速峰值(PSV)有显著差异(P〈0.05)。结论曲安奈德(TA)可以通过抑制炎症反应,下调炎症因子,抑制新生血管形成,改善眼动脉和视网膜中央动脉的血管张力,从而改善动脉血流速峰值,对减少糖尿病视网膜病变的发展起到一定作用。
简介:AIM:ToinvestigatetheregulationofEaf2proteininmouselenscellsapoptosisinducedbyultraviolet(UV)radiation.METHODS:AneyeofEaf2geneknockoutmiceornormalcontrolmicewasexposedtoUVradiation,andtheotheronewasnon-exposed.AlloflenseswereanalyzedbyTUNELandcaspase3activityassaystodeterminethedifferenceoftheapoptosisinducedbyUVradiation.Inaddition,exposedandnon-exposedlenseswereanalyzedbyquantifiedp53expressionandreal-timereversetranscription-polymerasechainreaction(RT-PCR)ofBax,Bid,Apaf-1,PumaandNoxa,tocompareEaf2geneknockoutmiceandnormalcontrolmice.RESULTS:UVradiationcausedapoptosisoflenscellsinnormalcontrolmiceandEaf2knockoutmice.Activityofcaspase3wassignificantlyhigherinnormalcontrolmicethanEaf2knockoutmice.Expressionofp53proteinwassignificantlyhigherinlensesexposedtoUVradiationthannonexposedlenses,butwassimilarbetweenEaf2geneknockoutmiceandnormalcontrolmiceinthesameUVcondition.AfterexposingtoUVradiation,theanalysisofreal-timeRT-PCRdemonstratedthatmRNAlevelsofPumaandNoxaweresignificantlyhigherinlensesofnormalcontrolmicethanEaf2geneknockoutmice,andthatmRNAlevelsofBax,BidandApaf-1werenotsignificantlydifferentbetweengeneknockoutmiceandnormalcontrolmice.CONCLUSION:Eaf2increaseslenscellsapoptosisinducedbyultravioletradiation.AndEaf2up-regulatesexpressionofthePumaandtheNoxatoactonlenscellsapoptosisafterUVradiation.
简介:目的探讨与准分子激光原位角膜磨镶术(laserinsitukeratomileusis,LASIK)治疗近视眼术后眼压变化有关的各种因素。方法中高度近视患者129例(245眼)按屈光度分为A组(≥-3.0D,<-6.0D)和B组(≥.0D)分别于手术前后1、3个月测量眼压(intra-ocularpressure,IOP)、中央角膜厚度(centralcornealthickness,CCT)和角膜前表面曲率(cornealanteriorsurfacecurvature,CASC)并记录术前近视度数(diopterofmyopiabeforesurgery,DMBS)、散光度数(diopterofastigmatismbeforesurgery,DABS)及术中角膜切削深度(cuttingcornealdepth,CCD)和直径(cuttingcornealarea,CCA)。所有数据进行相关分析,分组数据进行配对t检验,P<0.05被认为差异有显著性。结果A、B两组间手术前后1、3月及术后1月眼压值差异无显著性,但术后3月眼压值差异有显著性(P<0.05);相关分析显示IOP差与CCT差、角膜曲率差、术前近视度数、切削深度有显著相关性(分别为P<0.001,P=0.023,P<0.001,P<0.001),而与术前散光度数和切削直径无显著相关性(分别为P=0.192,P=0.473)。结论LASIK治疗近视眼术后的眼压值降低与CCT差、角膜曲率差、术前近视度数、切削深度等多种因素有关。
简介:目的比较近视性弱视儿童与同龄矫正视力正常的儿童屈光状态变化的差别。方法收集2006年1月~2015年12月诊为近视性屈光不正的儿童96例(174眼),按初诊时屈光状态分为低、中、高度近视。分别比较近视性弱视眼组与同期矫正视力正常的非弱视近视眼组年均屈光度改变情况。结果非弱视组和弱视组近视屈光度每年加深(-0.67±0.74)D和(-1.09±1.38)D,差异有统计学意义(P〈0.05);初诊为低度、中度和高度近视的弱视眼近视屈光度年均加深(-0.97±0.88)D,(-1.48±1.29)D和(-1.89±1.06)D,低度、中度和高度近视的非弱视眼分别为(-0.57±0.61)D,(-0.68±0.49)D和(-0.78±0.29)D;低、中、高度近视性弱视儿童的近视屈光度年均加深幅度均显著高于非弱视眼(P〈0.05)。结论近视性弱视儿童与单纯近视儿童一样,近视屈光度随年龄增长逐年增加,近视程度愈高,增加的幅度愈大。且初诊为不同程度近视性弱视眼的近视屈光度逐年加深幅度均大于非弱视眼。
简介:AIM:Tofindouttheoutcomeoflaserphotocoagulationinclinicallysignificantmacularedema(CSME)byopticalcoherencetomography(OCT).·METHODS:Itwasaprospective,non-controlled,caseseriesstudyenrolling81eyesof64patientswithCSMEbetweenAugust2008andJanuary2010.AllpatientsreceivedmodifiedgridphotocoagulationwithfrequencydoubledNd:YAGlaser.Eachpatientwasevaluatedintermsofbest-correctedvisualacuity(BCVA)andregressionorprogressionofmaculopathyafterlasertherapyat1,3and6months.Spearman’scorrelationtestwasusedtoshowthecorrelationbetweenBCVAandtotalmacularvolume(TMV).Analysisofvariance(ANOVA)wasusedtocompareamonggroupsandindependentt-testwasusedtocompareineachgroup.·RESULTS:ThereishighcorrelationbetweenBCVAandTMV(P≤0.001).BCVAimprovedin50.6%,remainedstaticin39.5%anddeterioratedin9.9%patientsafter6monthoftreatment.TheBaselineTMV(meanandSD)were9.26±1.83,10.4±2.38,11.5±3.05,8.89±0.75and9.47±1.98mm3fordifferentOCTpatterns,ST(spongelikethickening),CMO(cystoidmacularedema),SFD(subfovealdetachment),VMIA(Vitreomacularinterfaceabnormality)andaverageTMVrespectively(P=0.04).After6monthsoflasertreatment,themeanTMVdecreasedfrom9.47±1.98mm3to8.77±1.31mm3(P=0.01).InSTtherewassignificantdecreaseinTMV,P=0.01,Furtherwithinthesegroupsat6months,theyweresignificantlydifferent,P=0.01.·CONCLUSION:OCTshowedthedifferentmorphologicalvariantofCSMEwhiletheresponseoftreatmentisdifferent.TMVdecreasedthemostandhenceshowedtheimprovementinvisionafter6monthsoflasertreatment.IntheeraofAntivascularendothelialgrowthfactors(VEGFs),efficacyoflaserseemstobeinshadowbutitisstillfirstlineoftreatmentindevelopingnationlikeNepalwhereantiVEGFsmaynotbeeasilyavailableandaffordable.
简介:目的:在高度轴性近视眼与正常眼轴眼之间作对比分析,观察眼轴长度与白内障超声乳化加人工晶状体(intraocularlens,IOL)植入手术风险的相关性。方法:回顾性分析2012-02/2013-02在我院行白内障超声乳化加IOL植入术的连续病例843例1042眼。正常眼轴组(21~24mm)853眼,高度轴性近视组(≥26mm)189眼。对比分析两组的眼内并发症,包括玻璃体脱失,后囊膜破裂,晶状体核掉入玻璃体腔和IOL位置异常。结果:年龄在两个组中都是眼内并发症的风险因素,年龄的增长与眼内并发症的发生呈正相关,眼轴长度与眼内并发症的发生呈正相关,尤其对于后囊膜破裂和玻璃体脱失两个并发症。结论:此项研究结果提示,年龄和眼轴长度是白内障超声乳化手术并发症发生的两个风险因素,了解这些风险并提前做好准备可能会降低并发症的发生。
简介:AIM:Toevaluatechangesintheanteriorchamberdepth(ACD),crystallinelensthickness(LT)anditsrefractivepowerafterlaserinsitukeratomileusis(LASIK).·METHODS:Inallcases,thepreoperativeandpostoperativecentralACDwhichweremeasuredwithPentacam,Orbscan,IOL-MasterandA-scanultrasonography,centralcornealtruenetpowerwhichwasmeasuredwiththePentacam,OrbscanandIOL-Master,axiallength(AL)whichwasmeasuredwithIOL-MasterandLTwhichwasmeasuredwiththeA-scanultrasonographywerecomparedusingthepairedsamplettest.OcularrefractiveerrorsandlensrefractivepoweratcornealplanewerecalculatedandtheircorrelationswerealsoevaluatedbeforeandafterLASIK.RESULTS:At1weekafterLASIK,LTandcrystallinelensrefractivepoweratcornealplane(Dlens)whichwereassociatedwiththeIOL-MasterandPentacamincreasedsignificantly(P≤0.005),ACDdecreasedsignificantly(P≤0.001),butnosignificantincreasewasobservedintheDlenswhichwasassociatedwiththeOrbscan(P=0.261).SignificantcorrelationsbetweenthechangesintheocularrefractiveerrorsandDlenswhichwereassociatedwiththePentacamwereobservedat1weekand6monthsafterLASIK(P=0.028;P=0.001).CONCLUSION:LTincreasedsignificantlyafterLASIK,andthismightpartiallyleadtoACDdecrease,Dlensincreaseandasmallquantityofmyopicregression.
简介:目的探讨微创玻璃体切割联合白内障超声乳化术治疗增生性糖尿病视网膜病变(PDR)的临床疗效。方法回顾性分析PDR患者16例(16只眼)均行微创玻璃体切割联合白内障超声乳化术,术中行全视网膜光凝。其中3只眼行硅油填充,6只眼行气体(C3F8)填充,术后3—6个月行硅油取出术,术后随访6个月。结果16只眼随访12个月,视网膜复位良好,12只眼矫正视力显著提高,4只眼因视神经萎缩视力无提高,3只眼后囊增生明显。结论微创玻璃体切割联合白内障超声乳化术是治疗PDR有效的方法,具有良好的临床前景。
简介:目的:观察结膜松弛症松弛结膜组织和泪液中黏蛋白的表达变化,探讨结膜松弛症的发病机制。方法:收集结膜松弛症组38例38眼和正常对照组36例36眼的结膜组织和泪液标本,分别行免疫组织化学染色检测结膜组织中黏蛋白(MUC2、MUC4、MUC5AC、MUC16)表达情况,ELISA检测泪液中黏蛋白(MUC2、MUC4、MUC5AC、MUC16)A值,结果行统计学分析,比较两组之间的差异。结果:结膜松弛症组的结膜上皮细胞中MUC2、MUC4与正常对照组表达无统计学差异(P=0.315、0.156);结膜松弛症组的结膜上皮细胞中MUC5AC、MUC16阳性表达细胞较正常对照组明显减少,差异有统计学意义(P=0.016、〈0.01)。结膜松弛症组泪液中MUC2的A值与正常对照组无统计学差异(P=0.651),结膜松弛症组中MUC4、MUC5AC的A值较正常对照组明显降低,有显著的统计学差异(均P〈0.01),结膜松弛症组中MUC16的A值较正常对照组下降,差异有统计学意义(P=0.022)。结论:结膜松弛症患者结膜组织和泪液中MUC5AC和MUC16均下降,对其进一步研究可能揭示结膜松弛症的发病机制。