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：目的比较周边虹膜切除术与超声乳化联合人工晶状体植入术治疗早期原发性闭角型青光眼的临床效果。方法选择仅局部用药即可控制眼压在正常范围内的早期闭角型青光眼合并白内障患者48例（54眼），应用周边虹膜切除术对28例（32眼）早期闭角型青光眼进行手术治疗，其结果与同类病人（20例22眼）的超声乳化联合人工晶状体植入术治疗结果进行比较。术前，术后一个月内每周一次，半年内每月一次，半年后三个月一次做眼压、裂隙灯检查直至1年。比较两者在术后眼压控制、视力恢复及前房情况，并作统计学分析。结果应用周边虹膜切除术治疗组术后平均眼内压为15．2±3．1mmHg，而同类病人经超声乳化联合人工晶状体植入术治疗后平均眼内压为14．9±2．6mmHg。分别经周边虹膜切除术和超声乳化联合人工晶状体植入术治疗，两类病人眼内压在术后早期无明显差异（P〉0．05）。经超声乳化联合人工晶状体植入术治疗，18眼（81．8％）最佳矫正视力提高，0．4者占63．6％，经周边虹膜切除术治疗术后最佳矫正视力无明显提高，其中8眼视力不增反降，最佳矫正视力0．4者占18．8％，两者差异有显著性（P〈0．05）。经周边虹膜切除术治疗术后中央前房深度无明显变化，而经超声乳化联合人工晶状体植入术治疗术后中央前房深度显著加深，两者差异性明显（P〈0．05）。结论原发性闭角型青光眼早期患者施行超声乳化联合人工晶状体植入术，术后房角显著加宽，中央前房深度显著加深，矫正视力也不同程度提高，且并发症少。

简介：目的：系统评价拉坦前列素（Latanoprost）滴眼液与噻吗心安（Timolol）滴眼液降眼压的有效性和安全性。方法：计算机检索PubMed，Medline，CNKI及中国生物医学文献数据库收录的，并辅以手工检索、因特网搜索的有关拉坦前列素与噻吗心安治疗原发性开角型青光眼和高眼压症的随机对照试验（RCT）。按照纳入和排除标准限定研究对象，通过Jadad评分量表进行文献质量评估后，针对眼压下降比例、药物不良反应2项内容，使用Cochrane协作网提供的RevMan5．0软件进行Meta分析。结果：共纳入9项RCT，合计555例患者。Meta分析结果显示：（1）拉坦前列素滴眼液与噻吗心安滴眼液降眼压效果，在2，6，12wk时差异均有统计学意义（P＜0．01），加权平均差（WMD）分别为：在2wk[WMD＝-0．76，95％CI（-1．32，-0．20）]，在6wk[WMD＝-1．15，95％CI（-1．68，0．63）]和12wk[WMD＝-1．01，95％CI（-1．42，-0．61）]。（2）随访结束时，结膜充血、异物感为拉坦前列素的两种较为常见的不良反应，但其发生率拉坦前列素组与噻吗心安组比较，结膜充血的发生率[OR＝2．25，95％CI（0．99，5．08）]，异物感的发生率[OR＝2．48，95％CI（1．02，6．03）]，显示二者差异均无统计学意义。结论：治疗原发性开角型青光眼和高眼压症，拉坦前列素降眼压效果在用药12wk内较噻吗心安好；两者在12wk内引起结膜充血、异物感、虹膜色素加深、视野损害等的不良反应方面，差异不明显。由于纳入研究的样本量偏小，且方法学质量中等，致使本系统评价结果论证强度不高，因此还需要开展更多的高质量的临床随机对照研究，以便更客观、准确、全面地评价其疗效和安全性。

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：据中国科学技术期刊编辑学会和中国高校科技期刊研究会国际检索系统资讯部报道，数据来源——http：//www．ncbi．nlm．nih．gov／pubmed／citmatch。

简介：AIM:Tomeasurecentralcornealthickness(CCT)andpre-cornealtearfilmthicknessusingtheGalileidualScheimpfluganalyzer(GSA)inNewZealandWhiterabbits.METHODS:TennormalNewZealandWhiterabbits(20eyes)wereincludedinthisstudy.Withtheassistanceof0.1%fluorescein,thepre-cornealtearfilmcanbewellvisualized.BotheyesofeachrabbitwerescannedoncewiththeGSApre-andpost-instillationof1μL0.1%fluorescein.ThedifferencebetweenthetwomeasurementsofCCT(4-mmdiameter)wasrecordedasthepachymetricvaluesofthecentraltearfilm.RESULTS:TheCCTofpre-andpost-instillationwas388.8±9.5μmand407.0±10.5μm,respectively.Afterapairedt-testanalysis,thecentralpre-cornealtearfilmthicknessof4mmdiameterwas18.2±5.31μmwitha95%confidenceintervalof(15.7,20.6)μm(P<0.001).CONCLUSION:GSAcanbeusedtomeasureCCTandanalyzecentraltearfilmthicknessofrabbitswiththehelpoffluorescein.

简介：AIM:Toevaluatetheaccuracyofsphericalequivalent(SE)estimatesofadouble-passsystemandtocompareitwithretinoscopy,subjectiverefractionandatablemountedautorefractor.METHODS:Non-cycloplegicrefractionwasperformedon125eyesof65healthyadults(age23.5±3.0years)fromOctober2010toJanuary2011usingretinoscopy,subjectiverefraction,autorefraction(AutokeratorefractometerTOPCONKR-8100,Japan)andadoublepasssystem(OpticalQualityAnalysisSystem,OQAS,VisiometricsS.L.,Spain).Nineconsecutivemeasurementswiththedouble-passsystemwereperformedonasubgroupof22eyestoassessrepeatability.ToevaluatethetruenessoftheOQASinstrument,theSElaboratorybiasbetweenthedoublepasssystemandtheothertechniqueswascalculated.RESULTS:TheSEmeancoefficientofrepeatabilityobtainedwas0.22D.SignificantcorrelationscouldbeestablishedbetweentheOQASandtheSEobtainedwithretinoscopy(r=0.956,P<0.001),subjectiverefraction(r=0.955,P<0.001)andautorefraction(r=0.957,P<0.001).ThedifferencesinSEbetweenthedouble-passsystemandtheothertechniquesweresignificant(P<0.001),butlackedclinicalrelevanceexceptforretinoscopy;Retinoscopygavemorehyperopicvaluesthanthedouble-passsystem-0.51±0.50Daswellasthesubjectiverefraction-0.23±0.50D;Moremyopicvalueswereachievedbymeansofautorefraction0.24±0.49D.CONCLUSION:Thedouble-passsystemprovidesaccurateandreliableestimatesoftheSEthatcanbeusedforclinicalstudies.Thistechniquecandeterminethecorrectfocuspositiontoassesstheocularopticalquality.However,ithasarelativelysmallmeasuringrangeincomparisonwithautorefractors(-8.00to+5.00D),andrequirespriorinformationontherefractivestateofthepatient.