简介：AIM:Toinvestigatetheaccuracyofintraocularpressure(IOP)asmeasuredbyaReichertOcularResponseAnalyzer(ORA),aswellastherelationshipbetweencentralcornealthickness(CCT)andIOPasmeasuredbyORA,Goldmannapplanationtonometry(GAT),anddynamiccontourtonometry(DCT).·METHODS:Atotalof158healthyindividuals(296eyes)werechosenrandomlyformeasurementofIOP.AfterCCTwasmeasuredusingA-ultrasound(A-US),IOPwasmeasuredbyORA,GAT,andDCTdevicesinarandomizedorder.TheIOPvaluesacquiredusingeachofthethreetonometrieswerecompared,andtherelationshipbetweenCCTandIOPvalueswereanalyzedseparately.TwoIOPvalues,Goldmann-correlatedIOPvalue(IOPg)andcorneal-compensatedintraocularpressure(IOPcc),weregotusingORA.ThreegroupsweredefinedaccordingtoCCT:1)thincornea(CCT<520μm);2)normal-thicknesscornea(CCT:520-580μm);and3)thickcornea(CCT>580μm)groups.·RESULTS:Innormalsubjects,IOPmeasurementswere14.95±2.99mmHgwithORA(IOPg),15.21±2.77mmHgwithORA(IOPcc),15.22±2.77mmHgwithGAT,and15.49±2.56mmHgwithDCT.Meandifferenceswere0.01±2.29mmHgbetweenIOPccandGAT(P>0.05)and0.28±2.20mmHgbetweenIOPccandDC(P>0.05).TherewasagreatercorrelationbetweenIOPccandDCT(r=0.946,P=0.000)thanthatbetweenIOPccandGAT(r=0.845,P=0.000).DCThadasignificantcorrelationwithGAT(r=0.854,P=0.000).GATwasmoderatelycorrelatedwithCCT(r=0.296,P<0.001),whileIOPccshowedaweakbutsignificantcorrelationwithCCT(r=0.155,P=0.007).TherewasastrongnegativecorrelationbetweenCCTandthedifferencebetweenIOPccandGAT(r=-0.803,P=0.000),withevery10increaseinCCTresultinginanincreaseinthisdifferenceof0.35mmHg.Thethickcorneagroup(CCT>580μm)showedtheleastsignificantcorrelationbetweenIOPccandGAT(r=0.859,P=0.000);whilethethincorneagroup(CCT<520μm)hadthemostsignificantcorrelationbetweenIOPccandGAT(r=0.926,P=0.000).ThecorrelateddifferencesbetweenIOPccan

简介：近视眼的发病与多种因素相关,其中最主要的是遗传和环境因素.大量的近视相关研究提示近视的发生是在异常视觉信息的作用下,视网膜、脉络膜内多种神经递质和生长因子的表达发生改变,通过一系列信号传导过程引起巩膜重塑、眼轴延长而成.多种细胞因子通过NMDAR-1/NO-cGMP、TGF-β1/Smad3、JAK-Stat3等信号通路调控近视的形成与发展.本文就影响近视形成的几个主要信号传导通路的研究进展做一综述.

简介：目的本研究针对初发性翼状胬肉局部使用丝裂霉素C（MMC）一次性注射治疗,用免疫组织化学方法对经MMC治疗的翼状胬肉标本中血管内皮生长因子（VEGF）和转化生长因子（TGF-β_1）的表达进行分析研究,并与未使用MMC治疗者的翼状胬肉标本作对比。观察局部注射MMC对翼状胬肉组织中VEGF和TGF-β_1的表达的影响。方法需手术者共19例20眼,随机分为二组：A组直接切除胬肉,留标本作免疫组织化学检查;B组于翼状胬肉颈部进针,向胬肉组织内局部注射MMC,0.1～0.2ml（0.4mg/ml）,3周至10周后手术切除胬肉,留标本作免疫组织化学检查。分别对A、B二组标本中VEGF和TGF-β_1的表达进行分析研究。结果A组VEGF、TGF-β_1的表达较B组高,差异有统计学意义（P〈0.05）。结论丝裂霉素C翼状胬肉局部注射可以抑制静止期翼状胬肉中VEGF、TGF-β_1因子的表达。MMC在低浓度、低剂量下使用未出现眼部严重并发症。

简介：AIM:Toadaptthelowvision-relatedqualityoflife(LVQOL)instrumentintoTurkishlanguageandtoassessitsvalidityandreliability.METHODS:Thestudywasconductedin387patientsattendingtheCentreofLowVisionRehabilitation,FacultyofMedicine,AnkaraUniversity.Forstatisticalanalyses,theSpearman’scorrelationcoefficient,Cronbach’salphacoefficientandConfirmatoryFactorAnalysis(CFA)wereused.RESULTS:AccordingtoresultsofCFA,theiteminthe'Adjustment'subscalebecauseofhavingthefactorloadingbelow0.40,wasexcludedfromthequestionnaire.ThereliabilityofthequestionnairewasassessedaccordingtoCronbach’salphacoefficients.Thereliabilityofthe'DistanceVision,Mobility,andLighting'subscalewas?琢=0.863;ofthe'Adjustment'subscalewas?琢=0.694;'ReadingandFineWork'was?琢=0.791,and'ActivitiesofDailyLiving'was?琢=0.770.Sotheseresultsindicatethatthequestionnaireisreliabletomeasurethevisionrelatedqualityoflifeoflow-visionpatients.Thecorrelationsbetweenthesubscaleswerealsoanalyzed,andthecorrelationbetween'Adjustment'and'ReadingandFineWork'wasfoundtobethelowest(rs=0.336,P<0.001),whereasthestrongestcorrelationwasfoundbetweenthe'ReadingandFineWork',and'ActivitiesofDailyLiving'.Additionally,the'Adjustment'dimensionshowedthestrongestcorrelationwithonly'DistanceVision,Mobility,andLighting'dimension.CONCLUSION:Afterremovingthelastitemintheseconddimension,theTurkishadaptationofalldimensionsoftheLVQOLhasbeenshowntobereliable,validandsuitableforuseinpatientswithlowvisioninTurkey.

简介：MicroRNAs（miRNAs）是一类长18~25个核苷酸的单链非编码小分子RNA,属于表观遗传学范畴,广泛存在于真核细胞中,通过其表达量的上调和下调,影响细胞分化、增殖、凋亡,肿瘤发生,机体代谢以及衰老等生命过程。近年来有研究发现,miRNAs在眼部的晶状体中也有表达,其表达量的异常可能与年龄相关性白内障（ARC）有密切关系。本文主要就miRNAs与ARC相关性的研究进展作一综述。

简介：目的观察分析巩膜扣带术治疗青少年陈旧性视网膜脱离的临床效果。方法回顾分析42例（42眼）陈旧性视网膜脱离青少年患者经巩膜扣带术进行治疗。术中直视下定位、冷凝视网膜裂孔。采用单纯巩膜外加压4眼（9.5%）,单纯巩膜外环扎6眼（14.3%）,环扎联合加压32眼（76.2%）。结果术后随访6-12个月（平均8.6个月）,36只眼（85.7%）一次手术后视网膜完全复位,6只眼（14.3%）明显好转。结论巩膜扣带术治疗青少年陈旧性视网膜脱离,疗效良好,创伤小,可作为首先选择的术式。

简介：<正>刎颈伤多为开放性创伤,常伴有喉软骨或气管环的破裂、缺损、以及颈部大血管的损伤等。如不紧急抢救,常可因窒息或出血性休克而死亡或遗留严重后遗症。本文报告成功救治刎颈伤患者3例如下。

简介：目的探讨眼球穿通伤的处理方法和原则。方法对58例眼球穿通伤的临床资料进行回顾性总结分析。结果58例(60眼)眼球穿通伤治疗后,大部分眼球的完整性和视力明显提高。除年龄小,检查不合作的8眼外,术后矫正视力光感～0．1者有27眼(51．9％),0．2～0．5者12眼(23．1％),＞0．5的有8眼(15．4％),无光感5眼(9．6％)结论充分了解穿通伤的类型、损伤的部位、程度,及时治疗和正确地处理并发症,可有效地挽救伤眼的解剖和视功能。

简介：目的评价聚维酮碘在大规模白内障防盲手术中预防术后感染性眼内炎的有效性和安全性。方法四川省贫困白内障防盲手术患者862例（862眼），在术前使用50g／L聚维酮碘消毒眼周皮肤、睑缘和结膜囊，术中、术后观察眼部体征并询问患者主观不适。结果所有患者均无术后感染性眼内炎发生。23例患者有术中眼部刺激感，但无严重并发症。结论在大规模自内障防盲手术中使用50g/L聚维酮碘是一种有效、安全的预防术后感染性眼内炎的措施。

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：目的研究面神经损伤后对其运动神经元死亡的影响。方法以大鼠为研究对象,设计出5种面神经受损的实验模型,即面神经低位断伤,面神经高位断伤,面神经茎乳孔压榨伤,面神经茎乳孔牵拉伤,面神经茎乳孔切断后立即桥接。各组动物饲养1月后取其面神经核团,经CresylViolet染色,在显微镜下计算右,左侧面神经核团中运动神经元数目之比。结果实验表明:面神经低位断伤,高位断伤,压榨伤,牵拉伤,切断后立即桥接其运动神经元胞体存活率分别为78.26%,69.23%,94.02%,81.58%和83.85%,面神经低位断伤后运动神经元存活率同其它各组比较发现:面神经低位断伤后其运动神经元存活率比高位断伤者高,较面神经压榨伤和面神经切断后立即桥接低,同面神经牵拉伤者没有明显差异。结论面神经受损后其运动神经元数目的变化同损伤部位,损伤程度,以及损伤后的修复有关,为面神经损伤后手术时机的把握和手术方法的选择提供理论依据。

简介：·Thisisacasepresentationofaverybizarreopenglobetraumawithanteriorsegmentforeignbody-fishinghookstuckinthecorneaandiris.Complicationsduetothiskindofeyetraumamightbeveryhazardousandwithseriousimpactonvisualfunction.Wearerepresentingourapproachandexperienceofthreestepmanagementofthiskindofeyeinjury:first-extracttheforeignbody,closeandreconstructtheeyeball,second-fightinflammation,andthird-restorethevisualfunctionbycataractsurgery.·

简介：AIM:Toexaminetheexpressionofsurvivinandvascularendothelialgrowthfactor(VEGF)duringthedevelopmentofretinalneovascularization(NV)inamousemodel.·METHODS:Awell-characterizedmurinemodelofretinalNVwasusedtostudytheexpressionofsurvivinandVEGF.NVoftheretinawasinducedinmicebyexposureto75%O2frompostnataldayP7toP12,followedbyreturntoroomairfromP12toP17.ExpressionofsurvivinandVEGFproteinwasanalyzedbyImmunohistochemistry.Inaddition,mousemodelofproliferativeretinopathywasanalyzedbyretinalfluoresceinangiographyandquantificationanalysis.·RESULTS:Thenormalmicehadbothsuperfiekalanddeepvascularlayersthatextendedfromtheopticnervetotheperiphery.Inintraocularpressure(IOP)micewerecharacterizedbyrepresentatypicalpatternofpathologicalretinalNV.Therearelessorlittlenucleiofnewvesselsvascularendothelialcellbreakingthroughtheinnerretinalthaninretinopathyofprematurity(ROP)mice,largeclustersofbloodvesselswereadherenttotheinternallimitingmembrane(ILM)(0.27±0.20vs23.38±1.027,t=9.454,P<0.001).DuringtheangiogenicperiodfromP13toP17,survivinandVEGFproteinexpressionincreasedinexperimentalretinascomparedwithcontrolsamples(2.56±0.46vs3.34±0.40,t=17.43,P<0.01:2.18±0.75vs4.34±0.25,t=19.61,P<0.01).ProteinlevelsofVEGFandsurvivnhassignificantlypositivecorrelation(P<0.05,r=0.411).·CONCLUSION:CorrelationwasmadeattheproteinlevelsofsurvivinexpressioncomparedwiththatofVEGFinamurinemodelofretinalNV,whichsuggestsatemporalroleforsurvivinandVEGFinnewvesselformationinresponsetohypoxicstimulation.

简介：目的对比研究单切口与双切口青白联合手术治疗青光眼合并白内障的疗效。方法采用临床随机对照研究。选取52例（52眼）青光眼合并白内障患者随机分成两组：单切口组（白内障超声乳化联合人工晶体植入术和小梁切除术经同一切口完成）和双切口组（上方巩膜切口行小梁切除术和透明角膜切口行白内障超声乳化联合人工晶体植入术）,每组各26例（26眼）。术后随访3个月6个月和12个月,比较两组患者眼压控制情况及视力情况。结果本研究最终完成随、访资料47例,其中单切口组23例和双切口组24例纳入分析。两组术后眼压均较术前明显降低,差异3个月、6个月和12个月有统计学意义（P＜0.05）;两组间术后3个月、6个月和12个月的眼压下降量比较,差异无统计学意义P=0.52,0.38和0.47）。两组间术后3个月、6个月和12个月的视力比较,差异无统计学意义（x2=0.789,x2=0.374;x2=0.007,x2=0.932;x2=0.537,P=0.464）。结论单切口与双切口青白联合术均可安全、有效治疗青光眼合并白内障,两种术式具有相似疗效。

简介：目的：比较雷珠单抗和光动力疗法（photodynamictherapy，PDT）治疗湿性年龄相关性黄斑变性（age-relatedmaculardegeneration，AMD）的临床疗效。方法：回顾性分析23例PDT治疗的湿性AMD患者和23例予雷珠单抗玻璃体腔内注射治疗的湿性AMD患者的资料，比较两组在治疗后1，3，6mo的视力、OCT及FFA变化情况。结果：两组患者术后1，3mo视力均得到明显提高，两组在统计学意义上无显著差异，雷珠单抗组有2例（9％）患者在治疗后6mo出现视力回降现象，PDT组患者在术后3mo及术后6mo视力变化稳定。结论：雷珠单抗和PDT治疗湿性AMD，均能有效控制湿性AMD患者病情发展并能改善患者视力，两种疗法疗效的比较在短期内无统计学意义，但是术后6mo，PDT的稳定性优于雷珠单抗。

简介：目的回顾性研究中央角膜厚度（CCT）、眼轴长度对眼压的影响。方法155例310只眼行LASIK手术前检查,角膜厚度和眼轴长度由A超测量获得,眼压由Cannon非接触式眼压计测量,进行Pearson相关分析和偏相关分析。结果非接触式眼压IOP数值明显依赖于CCT（r=0.405,=0.000）,IOP与眼轴长度之间具有统计学意义的相关性（r=0.137,〈0.01）。结论CCT对Cannon非接触式眼压计测量的眼压值有明显影响,眼轴长度与IOP之间有相关性。

简介：<正>我院1978年9月～1994年10月共收治眼科住院病人3766例,其中眼外伤859例(占22.8%),眼球穿通伤310例,占同期跟外伤36.1%。分析报告如下。

简介：AIM:Todescribethecharacteristicsofmodulationtransferfunction(MTF)ofanteriorcornealsurface,andobtainthethenormalreferencerangeofMTFatdifferentspatialfrequenciesandopticalzonesoftheanteriorcornealsurfaceinmyopes.·METHODS:Fourhundredeyesfrom200patientswereexaminedunderSIRIUScornealtopographysystem.PhoenisanalysissoftwarewasappliedtosimulatetheMTFcurvesofanteriorcornealsurfaceatverticalandhorizontalmeridiansatthe3,4,5,6,7mmopticalzonesofcornea.TheMTFvaluesatspatialfrequenciesof5,10,15,20,25,30,35,40,45,50,55and60cycles/degree(c/d)wereselected.·RESULTS:TheMTFcurveofanteriorcornealsurfacedecreasedrapidlyfromlowtointermediatefrequency(0-15cpd)atvariousopticalzonesofcornea,thevaluedecreasedto0slowlyathigherfrequency(>15cpd).Withtheincreaseoftheopticalzonesofcornea,MTFcurvedecreasedgradually.3)Intherangeof3mm-6mmopticalzonesofthecornea,theMTFvaluesmeasuredathorizontalmeridianweregreaterthanthecorrespondingvaluesathorizontalmeridianofeachspatialfrequency,thedifferencewasstatisticallysignificant(P<0.05).At7mmopticalzonesofcornea,theMTFvaluesmeasuredathorizontalmeridianwerelessthanthecorrespondingvaluesatverticalmeridianat10-60spatialfrequencies(cpd),andthedifferencewasstatisticallysignificantin25,30,35,40,45,50cpd(P<0.05).·CONCLUSION:MTFcanbeusedtodescribetheimagingqualityofopticalsystemsatanteriorcornealsurfaceobjectivelyindetail.

简介：AIM:Todeterminewhethersinglenucleotidepolymorphism(SNP)rs641153isassociatedwiththeriskofage-relatedmaculardegeneration(AMD),weperformedasystematicmeta-analysisof15eligiblestudies.SNPinthecomplementfactorB(CFB)geneisconsideredtohavesignificantassociationwithAMDsusceptibility,butthereisgreatdiscrepancyintheseresults.METHODS:TheeligiblestudieswereidentifiedbysearchingthedatabasesofPubMed,EMBASE,andWebofScience.Oddsratios(ORs)with95%confidenceintervals(CIs)wereusedtoassesstheassociation.AlldatawereanalyzedusingStatasoftware.RESULTS:Theassociationbetweenrs641153andAMDriskwasstatisticallysignificantunderthehomozygousmodel(AAvsGG:OR=0.26,95%CI=0.15-0.45,P_h=0.973,/~2=0.0%,fixedeffects),dominantmodel(AA+GAvsGG:OR=0.49,95%CI=0.40-0.59,P_h=0.004,/~2=56.4%,randomeffects)andrecessivemodel(AAvsGA+GG:OR=0.30,95%CI=0.17-0.51,R_n=0.983,I~2=0.0%,fixedeffects).Thesameresultswerealsoobservedinthestratifiedanalysesbyethnicity,sourceofcontrolandsamplesize.CONCLUSION:Ourmeta-analysissuggeststhatrs641153intheCFBgenemayplayaprotectiveroleinAMDsusceptibility,thelateAMDinparticular,bothinCaucasiansandinAsians.

简介：目的：分析玻璃体腔注射曲安奈德术后继发性青光眼的发生率和危险因素。方法：对连续收治的256例有玻璃体腔注射曲安奈德适应证的各类眼底病患者实施单次玻璃腔注射4mg/0.1mL曲安奈德手术,观察其术后眼压变化情况。主要适应证包括湿性年龄相关性黄斑变性,其它原因如糖尿病性视网膜病变、视网膜中央静脉阻塞、视网膜分支静脉阻塞,视网膜静脉周围炎等引起的黄斑水肿性疾病。结果：256例256眼经至少3mo的追踪观察随访中,56眼发生继发性青光眼,发病率为21.9%。结论：继发性青光眼与年龄、性别、血压、糖尿病、玻璃体腔注药术的不同适应证、术前是否行白内障手术、是否行光动力治疗、是否行玻璃体切除手术等因素没有相关性。注药前青光眼病史的存在和基础眼压高于19mmHg等情况为术后继发性青光眼的显著危险因素。