简介：目的：比较白内障超声乳化吸除人工晶状体植入术后和小切口囊外门内障摘除人工品状体植入术后患者生存质量的变化。方法：分别于术前和术后1／4，1，3mo，观察I组108例单眼行白内障超声乳化吸除人工晶状体植入术后患者和II组94例单眼行小切口白内障囊外摘除人工晶状体植入的眼部情况，使用生存质量调杏量表记录分数。结果：术前生存质量总分数和各指标分数，术后1mo和3mo的生存质量总分数，I组和Ⅱ组比较差异均无显著意义（P〉0．05）。术后1／4mo生存质量总分数和各指标分数，I组高于Ⅱ组，两组比较差异有显著意义（P〈0．05）。结论：白内障超声乳化吸除人工品状体植入术患者的生存质量在短期内就得到明显提高。手术效果优于小切口囊外白内障摘除术。中期效果I组和Ⅱ组无明显差异，远期结果尚待进步深入探讨。

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：目的比较双眼行超声乳化白内障吸除联合植入AcrySofReSTOR与ATLISAtri839MP多焦点人工晶状体（M10L）术后的视觉质量。方法前瞻性非随机对照研究。收集双眼年龄相关性白内障24例（48跟），行超声乳化术，12例（24眼）植入AcrysofReSTOR为对照组，12例（24眼）植入ATLISAtri839MP为实验组，术后3月测量其裸眼远、中及近视力，最佳矫正远、中及近视力，离焦曲线，并通过问卷调查的方式评价患者术后脱镜情况及患者对全程视力的满意度。结果植入ATLISAtri839MP患者的中距离视力高于植入AcrySofReSTOR（P〈0．05），而远、近视力差异无统计学意义（P〉0．05）。离焦曲线显示两组第一峰位均在附加OD处；第二峰位对照组位于附加-3．0D，实验组位于-1．5D至-3．0D之间，此段呈现平台期。两组患者在各空间频率的对比敏感度比较差异均无统计学意义（P〉0．05）。在调查问卷中，实验组的脱镜率及中距离视力满意度高于对照组（P〈0．05）。结论两种人工晶状体植入术后均可获得良好的远近视力，ATLISAtri839MP人工晶状体能够获得更好的中距离视力及较高的患者满意度，具有更为理想的全程视力。

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：AIM:Tocomparetheregularityandaccuracyoflaserinsitukeratomileusis(LASIK)flapscreatedbytheZiemerFEMTOLDV'Classic'(Ziemer'Classic')andZiemerFEMTOLDVCrystalLinefemtosecondlaser(ZiemerCrystalLine).METHODS:Fourier-domainopticalcoherencetomography(RTVueOCT)wasusedtomeasurethemorphologyof200LASIKflapsof100consecutivepatientscreatedwiththeZiemerClassic(100flaps)ortheZiemerCrystalLine(100flaps)atoneweekpostoperatively.Flapthicknesswasevaluatedat36specifiedmeasurementpointsoneachflap.Forallprocedureswithbothlasers,thenominalflapthicknesswas110μm.RESULTS:ThemeanflapthicknessoftheZiemerCrystalLinegroup(102.49±2.68μm)wasthinnerthanthatoftheZiemerClassicgroup(107.65±5.09μm)(P<0.01).Averagethicknessofallflapswasuniformwithin4μmatallmeasurementpoints.TheflapsintheZiemerCrystalLinegroupweremoreregularthanthoseintheZiemerClassicgroupwhenmeasuredfromthecentertotheperiphery.Themaximumdeviationfromthenominal110μmof36measurementswas8μmintheZiemerClassicgroup,whileintheZiemerCrystalLinegroupitwas9μm.Withinthe3600measurementsonthe100eyes,differencesgreaterthan20μmwereobserved0.14%intheZiemerClassicgroup,and0.04%intheZiemerCrystalLinegroup.CONCLUSION:TheflapscreatedwiththeZiemerFEMTOLDVCrystalLinefemtosecondlaseraremoreuniformandthinnerthanthosecreatedbytheZiemerFEMTOLDVClassicfemtosecondlaser.