简介：目的设计整体运动知觉检测方法和研究正常人运动知觉特性.方法设计整体运动知觉测试软件,由微机控制,测定20例(40眼)正常人的运动知觉阈值.结果正常人运动知觉功能与性别及眼别无相关关系,而大于与小于50岁组的运动知觉分数值分别为4.47±0.40、4.85±0.16,两者具有显著性差异.结论建立了整体运动知觉检测方法,为临床应用打下了基础.

简介：目的探索肺炎衣原体（chlamydiapneumoniae，Cpn）与鼻息肉之间的关系。方法用直接免疫荧光法检测外周血单核细胞（peripheralbloodmononclearcell，PBMC）中的Cpn特异性抗原（Cpn-Ag），间接微量免疫荧光法检测血浆中Cpn抗体。结果在73例鼻息肉患者和87例正常人血浆中，CpnIgG的阳性检出率分别为65.8％（48／73）和32．2％（28／87），P〈0．001；CpnIgM的阳性检出率分别为30．1％（22／73）和12．6％（11／87），P〈0．01；PBMC中的Cpn-Ag阳性检出率分别为86．3％（63／73）和31．0％（27／87），P〈0．001。结论鼻息肉与肺炎衣原体有一定的相关性。检测PBMC中Cpn—Ag可为更好的治疗鼻息肉提供实验依据。（中国眼耳鼻喉科杂志，2006，6：233-234）

简介：目的探索肺炎衣原体(Chlamydiapneumoniae,Cpn)与急性咽喉感染之间的关系.方法用直接免疫荧光(directimmunofluorescence,DIF)法检测外周血单核细胞中的Cpn特异性抗原,间接微量免疫荧光(microimmunofluorescence,MIF)法检测血浆中Cpn抗体.结果在94例急性咽喉感染患者和87例正常人血浆中,CpnIgG的阳性检出率分别为54.3%(51/94)和32.2%(28/87),P＜0.05;CpnIgM的阳性检出率分别为59.6%(56/94)和12.6%(11/87),P＜0.05;外周血单核细胞中的Cpn特异性抗原阳性检出率分别为62.78%(59/94)和31.0%(27/87),P＜0.05.结论急性咽喉感染与肺炎衣原体有密切关系.检测外周血单核细胞中Cpn特异性抗原可为诊治急性咽喉感染提供实验依据.

简介：<正>今将我们近年来开展应用ERG检测120例及联合应用VEP检测50例视网膜色素变性(RP)病例报告如下。临床资料共检测视网膜色素变性患者120例,男78例,女42例,年龄最小仅4岁,最大72岁。110例皆有夜盲史,在80例行视野检查者中,呈典型管状视野的30例,50例有不同视野改变,多数呈不规则状缩

简介：目的制备左氧氟沙星热敏型耳用凝胶，并对其体外释放性能进行检测。方法制备以泊洛沙姆407为基质的左氧氟沙星热敏性耳用凝胶，根据中耳温度筛选泊洛沙姆407的最佳处方浓度，采用立式Franz扩散池模型对该制剂的体外释放性能进行研究。结果左氧氟沙星检测浓度的线性范围为3．0～10．5mg／L，在此浓度范围内吸光度（A）和浓度（c）呈良好的线性关系，即C（mg／L）=12．582A＋0．2976（r=0．9986，n=6）；平均回收率为100．09％，相对标准偏差（RSD）=0．61％（n=6）；泊洛沙姆407在处方中的最佳浓度为17％；药物释放具有一定的控释性，释放符合零级动力学特征。结论该耳用热敏型凝胶具有较好的控释性能，且制备方法简单，用药剂量易于控制。

简介：目的探讨增殖相关基因Ki-67和凋亡相关基因Bax、Bcl-2在喉癌中的表达和临床意义.方法采用免疫组织化学SP法检测存档石蜡标本喉鳞状细胞癌50例、不典型增生36例、喉正常黏膜10例中Ki-67、Bax、Bcl-2的表达.结果Ki-67在以上三组的表达率分别为52%、50%、10%,Ki-67在喉癌的表达率明显高于喉正常黏膜(P＜0.05),Ki-67在不典型增生中的表达率明显高于喉正常粘膜(P＜0.05),Bcl-2在以上三组表达率分别为44%、11%、0%.Bcl-2在喉癌组表达明显高于不典型增生和正常黏膜组(P＜0.05),Bax在以上三组表达率分别为76%、77%、78%、80%,各组之间差异无显著性.结论1.随着上皮细胞增殖活性增强,Ki-67表达增加,提示ki-67与喉癌的发生、发展有关,对表达增强者,应作进一步检查.2.Bcl-2检测结果,对鉴别喉部良、恶性病变有参考意义.

简介：目的:利用DNA探针杂交技术,结合显色探针技术建立一种新型、高灵敏的免疫检测体系,用于早期先天性白内障的筛查。方法:选取3个常染色体显性遗传的先天性白内障家系中患者14例,取静脉血并提取mRNA,建立CRYAB的捕获探针及显色探针。利用DNA探针,通过碱基配对原则形成三明治结构(捕获探针-DNA探针-显色探针)检测入选者的血样。1家系6例患者静脉血利用酶联免疫吸附测定(ELISA)法检测琢B-晶状体蛋白。结果:最佳条件下,双特异探针技术可检测到最低浓度的先天性白内障晶状体蛋白的突变基因,各突变位点检测率为99.5%~99.7%;ELISA法检测样本琢B-晶状体蛋白上调,阳性率为85.9%。双特异探针技术敏感性更高,检测位点更多,ELISA法仅局限于蛋白检测水平,精确性不高。结论:双特异探针检测技术操作简单,灵敏度高,可重复性高,经济实惠,在临床上用于产前诊断、优生优育具有重要的应用价值。

简介：甲状腺相关性眼病是一种与甲状腺疾病相关的器官特异性自身免疫性疾病，其病理表现为大量糖胺聚糖堆积，导致眼球突出，上睑挛缩，复视等临床表现。根据疾病活动性，可以进行活动期与静止期的分类。目前甲状腺相关性眼病活动性评价主要依据患者的症状和体征，以及影像学检查。细胞因子、黏附分子及糖胺聚糖的研究，为甲状腺相关性眼病活动性的客观评价提供了广阔的前景，现做一综述。

简介：目的：对湖北地区20～29岁人群的角膜散光情况与不同近视度数的关系进行调查,找出其变化规律。方法：用角膜地形图对随机抽取的2254例湖北地区20～29岁青年居民进行散光度、轴向及近视度数的测定,并分析其变化规律。结果：湖北地区20～29岁居民中,各个近视度段散光在26°～150°范围内所占人数比例最大,各个近视度段均呈现顺规散光人数多于逆规散光。其中女性高度近视段约为75.3%,中度近视段约为82.7%,低度近视段约为87.2%;男性高度近视段约为74.6%,中度近视段约为83.0%,低度近视段约为82.3%。20～29岁男性高度近视段顺规散光人数比例高于其他两组;女性低度近视段顺规散光人数比例低于其他两组,差异有统计学意义。20～29岁人群中女性中度近视段顺规散光人数比例高于同近视度男性组,且女性总体组顺规散光人数比例高于男性总体组,差异有统计学意义。20～29岁男、女性高度近视组200°以内散光人数比例均低于中度近视组,差异有统计学意义。结论：湖北地区20～29岁居民中,各个近视度段散光在26°～150°范围内所占人数比例最大,且各个近视度段不论男女均呈现顺规散光人数多于逆规散光;男性高度近视段顺规散光人数比例高于其他两组,女性低度近视段顺规散光人数比例低于其他两组;女性中度近视段顺规散光人数比例高于同近视度男性组,且女性总体组顺规散光人数比例高于男性总体组;男、女性高度近视组200°以内散光人数比例均低于中度近视组。

简介：目的：研究家兔静脉注射头孢哌酮钠／舒巴坦钠在眼内的透过性及蓄积作用。方法：用高效液相色谱法（highperformanceliquidchromatography，HPLC）测定给药后不同疗程时间点各组兔眼房水和玻璃体中的药物浓度。结果：房水中舒巴坦钠的药物浓度分别为23．4±4．8和23．6±3．7mg／L；头孢哌酮钠浓度分别为8．9±1．2和8．9±1．7mg／L；玻璃体中舒巴坦钠浓度分别为71．2±4．6和69．3±6．8mg／L，头孢哌酮钠未检出。结论：头孢哌酮Ca／舒巴坦钠静脉注射后在正常的眼内透过性不良。

简介：AIM:Toexploretheeffectofsaturatedhydrogensalineonbluelight-inducedretinaldamageinrats.·METHODS:Theretinaldamageofratswasinducedbybluelightexposurefor6hoursandexamined8hours,16hoursand24hoursaftertheexposure.OnehundredfemaleSprague-Dawleyratswererandomlydividedintofourgroups.Group1included30ratsreceivedlightexposurewithoutanyothertreatment.Group2included30ratsreceivedlightexposurewithintraperitonealinjectionofnormalsaline.Group3included30ratsreceivedlightexposurewithintraperitonealinjectionofsaturatedhydrogensaline.AndGroup4includedtheother10ratswhichdidnotreceiveanytreatment.Theamountofintraperitonealinjectionofsaturatedhydrogensalineandnormalsalinewascalculatedintheratioof1ml/100gofratweight.SpecimenswerecollectedandprocessedbyH-Estaining,ultrastructureobservation,biochemicalmeasurement.Morphologicalchangeswereobservedbylightmicroscopeandtransmissionelectronmicroscope(TEM)andtheretinalouternuclearlayer(ONL)thicknesswasmeasuredbyIPP6.0,whilethemalondialdehyde(MDA)wasmeasuredbycolorimetricdeterminationat532nm.·RESULTS:AlthoughthestructureofretinainGroup1andGroup2wasinjuredheavily,theinjuryinGroup3wasmild.ThedifferencesbetweenGroup1andGroup2werenotsignificant.ComparedwiththeratsinGroup1andGroup2,theonesinGroup3hadmoreclearlydemarcatedretinastructureandmoreorderedcellsbylightmicroscopeandTEMobservation.TheONLthicknesses(400times)offourgroupsateachtimepointexceptbetweenGroup1andGroup2weresignificantlydifferent(P<0.05).ThethicknessesoftheONLinGroup1atthreetimepointswere30.41±4.04μm,26.11±2.82μmand20.63±1.06μm,inGroup2were31.62±4.54μm,25.08±3.63μmand19.07±3.86μm,inGroup3were29.75±3.62μm,28.83±1.97μmand27.61±1.83μm.InGroup4themeanofthethicknesswas37.35±1.37μm.Astimewentby,thedamageg

简介：AIM:Anaerobicbacteriacancauseocularinfections.WetestedtheOxyPlateTMAnaerobicSystem(OXY)toisolatepertinentanaerobicbacteriathatcancauseoculardisease.METHODS:OXY,whichdoesnotrequiredirectanaerobicconditions(i.e.bags,jars),wascomparedtoconventionalisolationofincubatingculturemediainanaerobicbags.Standardcoloniescountswereperformedonanaerobicocularbacterialisolatesunderaerobicandanaerobicconditions(anaerobicbags)usingagarmedia:1)OXY(aerobiconly),2)5%sheepblood(SB),3)Chocolate,and4)Schaedler.Thebacteriatestedwerede-identifiedocularisolatesculturedfromendophthalmitisanddacryocystitisthatinclude10Propionibacteriumacnesand3Actinomycesspecies.Thecolonycountsforeachbacteriaisolate,oneachculturingcondition,wererankedfromlargesttosmallest,andnon-parametricallycomparedtodeterminethebestculturingcondition.RESULTS:Allanaerobicconditionswerepositiveforalloftheanaerobicisolates.SBandSchaedler’sagarunderaerobicconditionsdidnotsupportthegrowthofanaerobicbacteria.SparsegrowthwasnotedonchocolateagarwithPropionibacteriumacnes.Asananaerobicsystem,SBinananaerobicbagisolatedhighercolonycountsthanOXY(P=0.0028)andchocolateagar(P=0.0028).CONCLUSION:AlthoughOXYdidnottesttobemoreefficientthanotheranaerobicsystems,itappearstobeareasonablealternativeforisolatinganaerobicbacteriafromocularsites.Theuseofanagarmediuminaspeciallydesignedplate,withouttherequirementofananaerobicbag,renderedOXYasanadvantageoverotheranaerobicsystems.

简介：AIM:TodiscusstheimpactofLyciumBarbarumPolysaccharide(LBP)andDanshensupurifiedfromTraditionalChineseMedicine(TCM)onvascularendothelialgrowthfactor(VEGF)ofrabbitswithretinalneovascularization.METHODS:Fortyrabbitsweredividedintonormalcontrolgroup,modelcontrolgroup,LBPgroupandDanshensugroup.Animalsinthenormalcontrolgroupwerefedinthenormaloxygenenvironment.Animalsintheotherthreegroupswereputintotheenvironmentwith70%oxygenfor5daysinordertobuildthemodelofoxygen-inducedvascularproliferationretinopathy.AndthendifferentTCMextractwasinjectedintotheabdominalcavitiesoftheseannimals.After7days,theVEGFcontentofintheserumofrabbitwasmeasuredbydoubleantibodysandwichmethod.RESULTS:DataanalysisindicatedthatVEGFcontentwasasfollows:Danshensugroupwaslowerthanmodelcontrolgroup(12.92±3.84ng/Lvs19.32±4.15ng/L,P<0.05);LBPgroupandnormalcontrolgroupwerelowerthanmodelcontrolgroup(12.92±3.84ng/L,9.26±1.61ng/Lvs19.32±4.15ng/L,P<0.01);totalbloodviscosity,plasmaviscosity,cholesterolcontent,fibrinogencontentandtriacylglycerolcontentafterperitonealinjectionofLBPandDanshensuwereobviouslylowerthanbeforeinjection.CONCLUSION:TCMextract-LBPandDanshensucanprominentlyreducethecontentofVEGFintheprocessofvascularproliferativeretinopathyofrabbit;canpreventtheoccurrenceofretinalmicrovasculardiseasebyimprovingpartialoxygen-deficientenvironmentoraffectingallkindsofnewgrowthfactor.

简介：AIM:TopresenttheresultsofimplantationofIakymenkokeratoprosthesisinfivepatientswithvascularizedcornealleukomacausedbysevereocularinjury.·METHODS:Iakymenkokeratoprosthesiswasimplantedinto5eyesof5patients:4patientsweresufferedfromchemicalburnsand1patientfromexplosiveinjury.Thepreoperativevisualacuityrangedfromlightperceptiontohandmotion.Theimplantationsurgerywascomposedoftwo-stageprocedures.Thefollow-upperiodwasfrom9monthsto11years.Theoutcomemeasureswerevisualacuity,retention,andcomplicationsofthekeratoprosthesis.·RESULTS:Visionimprovementswereachievedinmostpatients.Allkeratoprosthesiswereretainedwithinthefollow-upperiod.Cornealmeltingoccurredinonepatientandfibrousclosureinanotherpatient,bothofwhichweresuccessfullytreated.Retinaldetachmentoccurredinonepatientaftersurgery.·CONCLUSION:Iakymenkokeratoprosthesisseemstobeapromisingalternativeforthepatientswithseverecornealinjury,butfurtherinvestigationisneededtoevaluatetheroleofIakymenkokeratoprosthesis.

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.

简介：<正>DirSir,IamdoctorGuo-YuanYang,fromtheDepartmentofOphthalmologyofWestChinaHospitalofSichuanUniversityinChengdu,SichuanProvince,China.Iwritetopresentacasereportofposteriorlentiglobuswithcataract.

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：AIM:ToexploretheinhibitoryeffectofasustainedcyclosporinA(CsA)deliverymicrosphere(CsA-MS)onposteriorcapsularopacification(PCO)inrabbiteyesaftercataractextraction.·METHODS:TwentyNewZealandwhiterabbitsacceptedcataractextractionplusintraocularlensimplantationandtheirlefteyeswereintraoperativelyinjectedCsA-MSpreparedusingpolymerpolylactioglycolicacid(PLGA)asacarrierandtheirrighteyeswereinjectedwithemptyMS.Thechangesincornea,anteriorchamberreaction,intraocularpressure,PCOandCsAconcentrationinaqueoushumorwereexaminedpostoperativelyandalltheeyeswereenucleated3monthsaftersurgeryforhistopathologicalandmorphologicalexaminationwithlightmicroscopyandelectronmicroscopy.·RESULTS:Conjunctivalhyperemia,cornealedema,intraocularpressureandanteriorchamberresponseofexperimentalandcontroleyesweresimilar,whilePCOinCsAMSinjectedeyeswasgreatlyimprovedcomparedwiththatincontroleyes.PosteriorcapsulesinCsA-MSinjectedeyesweresmoothandlensepithelialcells(LEC)didnotproliferatesignificantly(P>0.05),whileLECinposteriorcapsuleofcontroleyeshaddifferentdegreesofproliferationandcorticalregeneration.LECinCsA-MSinjectedeyeswerenotfunctionallyactiveandunderwentapoptosis,whereasLECincontroleyeswerefunctionallyactive(F-test,P=0.025).Inaddition,thecornealultrastructureshowednodifferencesbetweenCsA-MSandMSinjectedeyes.CONCLUSION:CsA-MShashighbioavailabilityinrabbiteyesandcouldinhibitpostoperativePCOoccurrenceanddevelopmentduringthestudyperiod,suggestingthatCsA-MSmaybeapromising,effectiveandsafeadministrationroutetopreventPCOinclinic.

简介：AIM:Toinvestigatetheefficacyofnon-buckledvitrectomywithclassicalendotamponadeagentsinthetreatmentofprimaryretinaldetachment(RD)complicatedbyinferiorbreaksandproliferativevitreoretinophathy(PVR).METHODS:Aretrospective,consecutiveandcaseseriesstudyof40patientswithinferiorbreakRDandPVR≥C1wasconducted.Allpatientsunderwentastandard3-port20-gaugeparsplanavitrectomy(PPV)withgasorsiliconeoiltamponadewithoutsupplementaryscleralbuckling.Thevitreousandallproliferativemembranewerecompletelyremoved,andretinectomywasperformedwhennecessary.Themeanfollow-upwas12.5months.Theprimaryandfinalanatomicsuccessrate,visualacuityandcomplicationswererecordedandanalyzed.RESULTS:Primaryanatomicsuccessratewasachievedin35of40eyes(87.5%)andthefinalanatomicsuccessratewas100%.ThemostcommoncauseofredetachmentwasrecurrentPVR.Thebest-correctedvisualacuity(BCVA)atfinalfollow-upwasimprovedin34eyes(85%),remainedstablein1eye(2.5%),andworsenedin5eyes(12.5%).Themeanvisualacuityatfinalfollow-upwasimprovedsignificantly(P=0.000).CONCLUSION:ThisretrospectivestudyprovidesevidencethatvitrectomywithoutscleralbucklingseemedtobeaneffectivetreatmentforinferiorbreakRDwithPVR.Withcompleteremovalofvitreousandproliferativemembranesandtimingofretinectomy,theinferiorbreakswhichcomplicatedwithPVRcouldbeclosedsuccessfullywithoutadditionalscleralbuckling.

简介：AIM:ToinvestigatetheeffectofY-27632onthesurvivalandneuriteoutgrowthoftheculturedretinalneurocytes.METHODS:Afterthepostnatalday2-3,Sprague-Dawleyretinalneurocyteswereculturedfor48hours,theculturemediawasreplacedwithserum-freemedia(controlgroup)andserum-freemediacontained30μmol/LY-27632(Y-27632group),andthecellswerecontinuallyculturedanother48hours.Theculturedretinalneurocyteswereidentifiedwithanti-neuronspecificenolase(NSE)immunocytochemistry.ThesurvivalstateofthosecellswasestimatedbyMTTassay,andtheneuriteoutgrowthofthosecellswasevaluatedbythecomputerizedimage-analysissystem.RESULTS:Comparedwiththecontrolgroup,theabsorbancevaluesofcellssurvivalinY-27632groupincreased12.90%and33.33%respectivelyafter72and96hoursculture.Y-27632hadnosignificanteffectonthediameterofculturedretinalneurocytes.Comparedwiththecontrolgroup,Y-27632inducedastableimprovementofneuriteoutgrowthofretinalneurocytesafter72and96hoursculture(P=0.001).CONCLUSION:Y-27632couldpromotethesurvivalandneuriteoutgrowthoftheearlypostnatalculturedretinalneurocytes.