简介:AIM:Topresentretinalmicrostructure,metabolismandfunctionabnormalitiesinthecourseofmultipleevanescentwhitedotsyndrome(MEWDS)byHeidelbergspectralismodalityimagingplatformandobserveitsoutcomebyEDI-SD-OCTandtwowavelengthautofluorescence.METHODS:Acaseofmultipleevanescentwhitedotsyndromeina23-year-oldfemalepresentedinitiallywitha15-dayhistoryoffloatersandacentralscotomaintherighteye.Toestablishthediagnosis,multimodalityimagingwasperformed,namely,bluelight-fundusautofluorescence(BL-FAF,excitation488nm,emission>500nm),near-infraredfundusautofluorescence(NIR-FAF,excitation787nm,emission>800nm)usingaconfocalscanninglaserophthalmoscope,fundusfluoresceinangiography(FFA),indocyaninegreenangiography(ICGA),spectrum-domainenhancedepthimagingopticalcoherencetomography(SD-EDI-OCT),multifocalelectroretinography(mf-ERG)andfundusphotograghwereperformedandfollowedupattheeighthmonthafterinitiallyvisiting.RESULTS:Opticalcoherencetomography(OCT)showedatransientdisruptionofthefovealphotoreceptoroutersegmentsincorrespondencetofovealgranularity.NIR-FAFshowedhypoautofluorescentareas,≤40μminsize,mostlyconcentratedaroundtheposteriorpoleanditstemporalsidelessthanthatinBL-FAF.Mf-ERGshowpinnacledisappearedinfoveaandmaculaandresponsesdecreasedmarkedlycomparedwiththefolloweye.Attheeighthmonthfollowup,hyperfluorescenceinBL-FAFweredisappear,while,NIR-FAFHypofluorescentspotsinearlystageofsuchlesionwerereduced.ButOCTdemonstratedthestructurewasrecoveredinresidualHypofluorescentareainNIR-FAF.Thesubfovealchoroidalthicknesswasdecreasedfrom372μmto307μmslightlyandcostlinewasrecovered.CONCLUSION:MEWDSisabenignself-healingdiseaseandthereisnopathologicalevidencetoinvestigatethenaturalcourseofsuchdisease.SD-OCTallowshighlydetailedimagesapproachinghistopathologytocertifythemicrostructura
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:·Descemet’smembranedetachment(DMD)canbeapotentiallyseriouscomplicationofintraocularsurgeryoroculartrauma.Thecauseisnotveryclear.WearetryingtoremindanawarenessofthespectrumofDMDresultingfromtrabeculectomybypresentingacaseofextensiveDMDaftertrabeculectomywhichwassuccessfullyrepaired.
简介:AIM:ToinvestigatetheefficacyofFerrararings(FR)implantationinthetreatmentofkeratoconus.METHODS:Itwasaretrospectivecaseseriesdescriptivestudy.Thesamplewascomprisedof50patients79eyesdiagnosedwithprogressivekeratoconus.Thisincluded24(48%)malesand26(52%)femalesbetweentheageof13and44years.AllparticipantsunderwentsurgicalimplantationofFRintheperiodbetweenJanuary2009andSeptember2010atJordanUniversityHospital.Thoroughophthalmologicexaminationswereappliedtomeasurevitalvariablesforeachpathologicalconditionbeforeandaftersurgery.RESULTS:Findingsindicatedanoverallsignificantpostoperativeimprovementinbothuncorrectedvisualacuity(UCVA)andbestspectaclecorrectedvisualacuity(BSCVA)throughoutfollowupvisits.Moreover,resultsillustratedasignificantdecreaseinsphericalequivalent(SE)andkeratometricreadings(lower,higherandtheaverage).CONCLUSION:Surgicalinterventionstrategiesarebeingfrequentlydevelopedtomeettheneedsofpatientswithkeratoconus.TheimplantationofFerrararingshasproventobeasafeandfeasiblealternativeprocedureforthetreatmentofmild-moderatekeratoconusespeciallyforpatientswithcontactlensesintolerance.Wehavefoundthatthisprocedurehasimprovedvisualoutcomesinalleyesstudied.Nevertheless,furtherresearchisneededtoinvestigatelongtermoutcomes.
简介:目的:探讨羟基磷灰石义眼台(HA),Ⅰ期植入花瓣状巩膜壳内的手术效果。方法:对有眼球内容物剜除术适应证的病例,实施眼球内容物剜除术,依据眼B超和钢球模检测所需羟基磷灰石义眼台型号,将羟基磷灰石义眼台Ⅰ期植入花瓣状巩膜壳内,其表面双层巩膜覆盖。随访6~15mo,观察术后效果。结果:患者48例48眼均成功植入羟基磷灰石义眼台,并获得较满意的外观美容效果。结论:羟基磷灰石义眼台Ⅰ期植入花瓣状巩膜壳内术式,保留了眼球六条附属肌肉及其功能,义眼台前方自体巩膜双层覆盖防止眼台暴露,改善眼内容物剜出术后眼窝塌陷等畸形,达到较为理想的一种眼部整形效果。
简介:目的探讨耳源性颅内并发症的临床特点及诊治措施。方法回顾分析2003-2010年我科收治的21例耳源性颅内并发症患者的临床资料,病例包括脑脓肿9例、脑膜炎5例、静脉窦血栓性静脉炎4例、硬膜外脓肿3例,继发于胆脂瘤型中耳炎14例、骨疡型中耳炎3例、隐蔽性中耳炎2例、Modini畸形2例。21例均行耳部及头颅cT平扫检查,其中6例未发现颅内病变,经行磁共振成像(MRI)检查后确诊。分别行单纯乳突根治术8例、乳突根治术+脑脓肿穿刺引流6例、乳突根治术+颅钻孔脑脓肿引流1例、乳突根治术+脑脓肿切除术1例、乳突根治术+静脉窦切开脓肿清除及血栓取出2例、外淋巴漏修补术2例。结果随访1-2年,1例死亡,其余20例治愈,其中19例干耳,1例术腔仍有少量分泌物。全部患者颅内并发症无复发。结论胆脂瘤型和骨疡型中耳炎仍是耳源性颅内并发症的最常见病因,应提倡对这两种危险性中耳炎早期进行手术治疗。临床高度怀疑颅内并发症,CT平扫阴性病例,需行MRI检查。乳突切除进路的显微微创手术有效,无需开颅。
简介:AIM:Toevaluatetheefficacyofintralesionalradiofrequencyablationinthetreatmentofperiorbitalsyringomas.·METHODS:Wetriedtheintralesionalradiofrequencyablationfor64patientswithperiorbitalsyringomasfrom2007to2011.Theoperationwasperformedunder2.5loupemagnifications.Thehandpiecewasassembledwithaneedleelectrodeandconnectedtotheradiofrequencyablationapparatus.Theelectrodewastheninsertedintothetargetlesionsindermisanddeliveringinjurytothebaseofthesetumors.Resultswereassessedclinicallybycomparingpre-andpost-treatmentphotographsandpatientsatisfactionrates.·RESULTS:Clinicalimprovementincreasedwitheachsubsequenttreatmentsession.Thepercentofpatientswhoseclinicimprovementgradewere≥3aftereachsessionwasrespectively71.9%(Session1),83.3%(Session2),and100%(Session3).Thestatisticalresultsindicatedtheconcordanceoftheclinicalassessmentandthesatisfactionlevelofpatients(kappa=0.78ofthesession1;kappa=0.82ofthesession2).Themajorityofpatientshadgoodorexcellentcosmeticresults.Postoperatively,therewerenopermanentsideeffectsorrecurrences.·CONCLUSION:Asanewtechniqueofminimallyinvasion,theintralesionalradiofrequencyablationwasfoundtobeaneffective,inexpensive,highlypreciseandsafewayoftreatingperiorbitalsyringomas.
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:糖尿病视网膜病变(DR)是作为一种常见的糖尿病并发症,对其发病机制的研究一直是关注的焦点。经典的糖尿病视网膜病变的发病机制假说集中与多元醇通路的异常、蛋白质非酶糖基化产物的堆积、蛋白激酶C及氨基己糖途径有关。聚腺苷二磷酸核糖聚合酶(PARP)作为统一机制中的一个关键分子,与DR发病机制及其防治密不可分,对其进行适当干预,可成为DR治疗的重要方法之一。
简介:世界各地糖尿病增加是主要由于2型糖尿病患者的人数在上升。2型糖尿病越来越常见是因为:随着人的寿命延长,糖尿病更多发生在中老年人中。随着人们越来越多地迁移到市区,运动减少,吃得更多,不健康的食物,越来越多的人正变得肥胖成为2型糖尿病的主要原因。糖尿病增加一系列的眼部疾病风险,包括白内障,但是与糖尿病有关盲的主要原因是糖尿病视网膜病变(DR)。糖尿病视网膜病变通常在患糖尿病后的十至二十年之间发生并且当糖尿病未确诊及未治疗时发展更快。
简介:<正>DearSir,IamDr.YunLi,fromtheSecondHospitalAffiliatedtoNanchangUniversity,JiangxiProvince,China.IwritetopresentacasereportofIOLimplantationin