简介:AIM:Toaddressissuesininteroperabilitybetweendifferentfundusimagesystems,weproposedawebeyepicturearchivingandcommunicationsystem(PACS)frameworkinconformancewithdigitalimagingandcommunicationinmedicine(DICOM)andhealthlevel7(HL7)protocoltorealizefundusimagesandreportssharingandcommunicationthroughinternet.METHODS:Firstly,atelemedicine-basedeyecareworkflowwasestablishedbasedonintegratingthehealthcareenterprise(IHE)EyeCaretechnicalframework.Then,abrowser/serverarchitectureeye-PACSsystemwasestablishedinconformancewiththewebaccesstoDICOMpersistentobject(WADO)protocol,whichcontainsthreetiers.RESULTS:Inanyclientsysteminstalledwithwebbrowser,clinicianscouldlogintheeye-PACStoobservefundusimagesandreports.Multipurposeinternetmailextensions(MIME)typeofastructuredreportissavedaspdf/htmlwithreferencelinktorelevantfundusimageusingtheWADOsyntaxcouldprovideenoughinformationforclinicians.Somefunctionsprovidedbyopen-sourceOviyamcouldbeusedtoquery,zoom,move,measure,viewOICOMfundusimages.CONCLUSION:Suchwebeye-PACSincompliancetoWADOprotocolcouldbeusedtostoreandcommunicatefundusimagesandreports,thereforeisofgreatsignificanceforteleophthalmology.
简介:AIM:Toinvestigatethespecialtyoftranscranialsurgerythroughpterionalapproachforremovalofcranio-orbitaltumors,introducetheophthalmologicalexperiencesofenteringtheorbittoreducetheincidencerateofassociatedcomplicationsofthisoperation.·METHODS:Weperformedaretrospectiveanalysisofaseriesof37casesinvolvingpatientswhounderwenttranscranialsurgerythroughpterionalapproachfortreatmentofcranio-orbitaltumorsinourdepartmentinthepast8years.Pterionapproachcraniotomywasperformedtoallpatients.Afterremovingtumorsintheskullbytheneurosurgeon,ophthalmologistremovedtumorsinorbit.Wetookmeasuresbelowtodecreasecomplications,includinggroundingopticcanalthroughanabrasivedrillingwhennecessary,hangingvariousextraocularmusclestobeexposedforprotection,refrigeratingbyrefrigerationheadstoremovetumors,atlastsewinguporbitseptumaftersurgery.·RESULTS:Tumorswereremovedcompletelyin32cases,andincompletein5casesduetoextensiveinvasionintothecavernoussinusorsphenoidsinus.Ofallthecases,benigntumorsweredemonstratedin28cases(75.6%,28/37)andmalignantin9(24.3%,9/37).Themostcommonlesiontypewasmeningiomain11cases(29.7%,11/37).Extraocularmuscles(EOM)impairment,occurringin21cases(56.7%,21/37),wasthemostfrequentpostoperativecomplication.Themostseriousconsequencewasvisionlossoccurredin4cases(10.8%,4/37).Othercomplications,suchas11casesoftransientblepharoptosis29.7%(11/37),5casesofmydriasisin13.5%(5/7);2casesofcerebrospinalrhinorrheain5.4%(2/37).·CONCLUSION:Cranio-orbitaltumorscanberemovedcompletelyusingtranscranialapproach,andthepterionalapproachoffersexcellentexposure.Cooperationofinterdisciplinaryteamofneurosurgeonsandophthalmologistsconducestofulluseofrespectiveprofessionaladvantages.Theexperienceofophthalmicoperationtechnologycandecreaseoccurrenceofocularcomplicationsaftersurger
简介:胆脂瘤是由一种能产生角蛋白的鳞状上皮聚集于中耳、上鼓室、乳突、岩尖而形成的,在中耳表现为独立生长、代替中耳黏膜、吸收骨质的三维上皮结构。它不是一种肿瘤,但对患者有潜在的危险。1829年,法国Cruveilhier首先描述多中心的白色“tumeursperlees”(瘤株),1838年,Miiller第一个使用“cholesteatoma”(胆脂瘤)这一术语来描述颅内角化物的堆积。1922年,Cushing提出先天性胆脂瘤的可能起源,1953年,House报道了经典的鼓膜完整的中耳胆脂瘤。事实上,胆脂瘤是一种良性的角化上皮细胞囊,由3种成分组成:囊内容、基质、基质外层。
简介:本期开始介绍鼓室体瘤的影像学和临床表现.鼓室体瘤属于颈静脉-鼓室副神经节瘤(glomusjugularetympanicumparaganglioma),也即颈静脉球瘤的一种,后者还包括颈静脉球体瘤.因起源于鼓室内与迷走神经耳支(Arnoldnerve)或舌咽神经鼓室支(Jacobsonnerve)伴行的副神经节组织,故称为副神经节瘤(paraganglioma),多见于中下鼓室,上鼓室少见.肿瘤可以扩展超过中耳界限,但一般不侵犯颈静脉球.光镜下将鼓室体瘤细胞分为二型:Ⅰ型细胞为神经内分泌颗粒细胞,巢状结构;Ⅱ型细胞为支持细胞.鼓室体瘤中有丰富的毛细血管网.
简介:目的:研究干眼症的病因,为干眼症的诊断提供依据,减少误诊的发生。方法:回顾性分析83例确诊为干眼症的患者的发病原因,并分析其中16例发生误诊的病例。诊断方法为依据干眼症症状、泪膜稳定性下降、泪液分泌减少及眼表损害等表现,并按一定的诊断步骤进行。结果:干眼症患者83例中最常见的原因是视屏终端综合征24例(29%)、慢性睑缘炎12例(14%)、干燥综合症12例(14%)。有10例误诊为慢性结膜炎,有2例误诊为病毒性角膜炎,另有4例干眼症的病因诊断错误。结论:干眼症的发病原因虽不是诊断干眼症的必备条件,但认识并积极寻找干眼症的病因可以为诊断提供依据,同时也可减少误诊的发生。
简介:AIM:Toassesstheawarenessofeyecomplicationsandtheprevalenceofretinopathy,inthefirstvisittoeyeclinic,amongtype2diabeticpatientsattendingatertiarymedicalcentreinKualaLumpur,Malaysia.METHODS:Aninvestigator-administeredquestionnairewasgivento137patientswithdiabetesundergoingfirsttimeeyescreeningintheeyeclinic.Thiswasfollowedbyadetailedfundusexaminationbyaseniorophthalmologisttoassessforpresenceofretinopathy.RESULTS:Almost86%ofrespondentswereawareofdiabeticeyecomplications,especiallyinpatientswhohadachievedtertiaryeducationallevel(96.3%).Themajorityofthepatients(78.8%)werereferredbytheirphysiciansandonly20.4%cameontheirowninitiative.Manyofthepatients(43.8%)didnotknowhowfrequenttheyshouldgoforaneyecheck-upand72.3%didnotknowwhattreatmentswereavailable.Lackofunderstandingondiabeticeyediseases(68.6%)wasthemainbarrierformostpatientsfornotcomingforeyescreeningearlier.Despiteahighlevelofawareness,only21.9%hadrecordedHbA1clevelof<6.5%while31.4%wereundertheerroneousassumptionofhavingagoodbloodsugarcontrol.Atotalof29.2%haddiabeticretinopathyintheirfirstvisiteyetesting.CONCLUSION:Inthepresentstudy,29.2%oftype2diabeticpatientshadretinopathyintheirfirsttimeeyetesting.Althoughtheawarenessofdiabeticeyecomplicationswashighamongfirsttimeeyescreeningpatients,theappropriateeyecare-seekingbehaviorwascomparativelylessandshouldberectifiedtopreventtheriseofthissightthreateningeyedisease.
简介:亚洲神经眼科协会(ASNOS)于2002年在日本东京成立。由亚洲神经眼科协会每两年主办一次的亚洲神经眼科大会是一个大型国际神经眼科会议,代表了亚洲神经眼科基础研究及临床研究的最高水平。历届会议都有数百名各国神经眼科专业人士进行学术交流,对国际最近神经眼科新技术及学术前沿进行介绍及讨论。亚洲神经眼科大会提供了一个国际化平台,让世界各地的参会者对前沿的神经眼科研究课题交流想法,探讨最新进展及促进未来的合作。在亚洲神经眼科大会中一个尤其出名且重要的病例讨论版块“WalshinAsia”,选取各国出色的带病理结果的病例进行深入剖析,非常具有挑战性。
简介:AIM:Todemonstratethemorphologyandstructureofinvitroreconstructedtissue-engineeredhumancornealepithelium(TE-HCEP)withseedercellsfromanuntransfectedHCEPcellline.·METHODS:TheTE-HCEPswerereconstructedinvitrowithseedercellsfromanuntransfectedHCEPcellline,andscaffoldcarriersofdenudedamnioticmembrane(dAM)inair-liquidinterfaceculturefor3,5,7and9days,respectively.Thespecimenswereexaminedwithhematoxylin-eosin(HE)stainingofparaffin-section,immunocytochemicalstaining,scanningandtransmissionelectronmicroscopy.·RESULTS:DuringinvitroreconstructionofTE-HCEP,HCEPcellsformeda3-4,6-7and8-10layersofanHCEP-likestructureondAMsinair-liquidinterfaceculturefor3,5and7days,respectively.Butthecellsdeceasedto5-6layersandthestructureofstraifiedepitheliumbecamelooseatday9.Andthecellsmaintainedpositiveexpressionofmarkerproteins(keratin3andkeratin12),cell-junctionproteins(zonulaoccludens-1,E-cadherin,connexin43andintegrinβ1)andmembranetransportproteinofNa+-K+ATPase.TheHCEPcellsinTE-HCEPwererichinmicrovillionapicalsurfaceandestablishednumerouscell-cellandcell-dAMjunctionsatday5.·CONCLUSION:ThemorphologyandstructureofthereconstructedTE-HCEPweresimilartothoseofHCEPinvivo.TheHCEPcellsinthereconstructedTE-HCEPmaintainedthepropertiesofHCEPcells,includingabilitiesofformingintercellularandcell-extracellularmatrixjunctionsandabilitiesofperformingmembranetransportation.TheuntransfectedHCEPcellsanddAMscouldpromisinglybeusedinreconstructionHCEPequivalentforclinicalcornealepitheliumtransplantation.
简介:目的:探讨激光消融与电解治疗倒睫的疗效与安全性。方法:选取倒睫患者50例76眼,分为激光消融和电解治疗两组进行倒睫治疗,观察记录两组患者术后眼部刺激症状、并发症及复发情况,共观察6mo。结果:激光消融组一次治愈率81%,复发率19%,总治愈率94%;电解治疗组一次治愈率49%,复发率63%,总治愈率72%。激光消融组一次治愈率和总治疗率显著高于电解治疗组,其复发率低于电解治疗组,两组差异有统计学意义(P〈0.05)。激光消融组患者无特殊不适,治疗部位无瘢痕产生及皮肤色素脱失;电解治疗组患者5眼出现轻度瘢痕。结论:激光消融治疗倒睫成功率高,患者术中无不适症状,术后并发症少,是一种有效安全的临床治疗方法。
简介:目的探讨和评估微型角膜刀准分子激光角膜上皮瓣下磨镶术(epipolislaserinsitukeratomileusis,Epi—LASIK)与准分子激光角膜上皮瓣下磨镶术(laserepithelialkeratomileusis,LASEK)治疗中高度近视的安全性和有效性。方法Epi-LASIK组31例(59眼)和同期LASEK39例(75眼),Epi—K微型角膜上皮刀(平推型)进行Epi—LASIK术(MoriaEpi刀须负压45S才达到规定指标)。LASEK采用20%乙醇浸润20~30S,临床观察两者术后症状、视力、角膜上皮瓣愈合特点及视觉质量等。结果Epi—LASIK组术后6个月裸眼视力达术前矫正视力占92.35%,LASEK组术后6个月裸眼视力达术前矫正视力占93.83%。主要并发症有术后部分少许角膜上皮下雾状混浊(Haze)形成及继发高眼压。两组术后对比敏感度提高,出现眩光差异无显著性意义。结论Epi—LASIK及LASEK术均可安全,有效的矫治中高度近视。两者的长期疗效有待观察。
简介:血管生成素(angiopoietin,Ang)是特异性作用于血管内皮细胞的生长因子,主要由Ang-1和Ang-2组成;Tie2(tyrosinekinasethatcontainsimmunoglubin-likeloopsandepidernalgrowthfactor-similardomains2)是其共同受体.Ang-1促使血管成熟,维持血管稳定.Ang-2则拮抗Ang-1的作用,始动病理性新生血管形成.在眼部新生血管形成过程中Ang/Tie2受体途径起重要作用,抑制Ang/Tie2受体途径可以抑制眼部新生血管形成.