简介：目的：探索一种临床实用的前房深度相对定量测量法,初步确定老年人前房深度的正常参考值。方法：裂隙灯光源外转45°，受检眼直视裂隙光，在6点时钟方向测量六个点的前房深度（ABCDEF），以角膜缘处的角膜厚度（CT值）为1计。A：角巩膜缘黑白交界处；B：A点上移1CT；C：B点上移1CT；D：虹膜最高点；E：瞳孔缘；F：晶状体前极。测量了50～75岁的正常老年人，229例229眼，采用双盲法对22例44眼进行了11次重复性检测。结果：女性组ABCDEF点的前房深度均值分别为0．38，0．58，0．89，2．10，2．65和3．26CT；男性组分别为0．71，1．02，1．43，2．37，2．90，3．41CT。女性组每个点的深度均比男性浅（P〈0．05），越近周边部越显著。结论：前房深度六点相对定量测量法可重复性好，实用性强。

简介：目的：通过与非接触式眼压计（non-contacttonometer,NCT）的比较,评价Diaton眼压计（DT）在准分子激光原位角膜磨镶术（laserinsitukeratomileusis,LASIK）前后眼压测量中的应用价值。方法：在LASIK术前及术后1mo,分别使用NCT和DT测量患者眼压,使用SPSS13.0统计软件对所得结果进行统计学分析。结果：术后1mo时,NCT眼压测量值较术前下降（5.76±2.31）mmHg,DT眼压测量值则无显著差异（t=0.70,P=0.487）;NCT与DT读数测量值差值与术中切削量呈正相关,与术后中央角膜厚度呈负相关。结论：Diaton测量眼压不受角膜厚度的影响,因此更适用于LASIK术后患者的眼压测量。

简介：AIM:TotrainTibetanmonkey(Macacathibetana)forintraocularpressure(IOP)measurementinconsciousstateandobtainnormalIOPinconsciousTibetanMacaque.·METHODS:Thetrainingwasbasedonaward-conditionedbehavior.Foodstimulationandhuman-animalinteractionwereusedinthistraining.·RESULTS:TrainedTibetanmonkeyscalmlyacceptedIOPmeasurementbytheTonoVet?誖reboundtonometerwithoutsedationoranesthesiaandtheirIOPvaluesweresimilartootherprimates.·CONCLUSION:Human-cultivatedThibetanmonkeysaretamable,andcanbeusedforbiomedicalresearchsuchasophthalmicresearchwithoutanesthesia.

简介：分泌性中耳炎临床多见,虽经反复咽鼓管吹张、鼓膜置管等治疗,仍有复发的顽固病例。本研究发现分泌性中耳炎患者其咽鼓管鼓口直径较正常狭小,提示可能与难治性分泌性中耳炎存在一定关系。本研究结果在顽固性分泌性中耳炎中没有发现咽鼓管骨性段骨质增生现象。

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: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：AIM:Toassesstheeffectofmyopiaonthethicknessofretinalnervefiberlayer(RNFL)measuredby3Dopticalcoherencetomography(3D-OCT)inagroupofnonglaucomatousChinesesubjects.METHODS:Twohundredandfifty-eighteyesof258healthyChinesemyopicindividualswererecruitedandfourgroupswereclassifiedaccordingtotheirsphericalequivalent(SE):lowmyopia(n=42,-0.50