学科分类
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500 个结果
  • 简介:白内障是目前世界上最主要致盲原因,也是我国最重要致盲原因,白内障摘除是治疗白内障唯一有效方法。然而由于各种原因,我国白内障手术率(CSR)远低于发达国家甚至某些发展中国家。对基层医院眼科医师和年轻医师进行恰当白内障手术规范化培训是提高我国CSR关键之一。

  • 标签: 白内障手术率 能力评估 致盲原因 白内障摘除 发展中国家 规范化培训
  • 简介:在瞬息万变信息化社会里,加强医学生创新能力培养是适应医学发展必要条件。本文结合眼科学特点,初步探讨在眼科教学活动中医学生创新能力培养所存在问题解决方案,为提高医学生创新能力,更好服务临床提供帮助。

  • 标签: 眼科学 创新能力 医学生
  • 简介:间歇性外斜视(intermittentexotropia,IXT,X(T))是介于隐性斜视与显性斜视之间一种过渡型斜视。在各类共同性外斜视中占第一位。间歇性外斜视发病原因主要是集合和分开功能之间平衡失调,集合功能不足以及融合功能低下引起。平均发病年龄岁,女性多发。斜视角随注视距离、注意4力强弱、视力疲劳状态在正位与外斜视间变动。

  • 标签: 间歇性外斜视 能力评估 隐性斜视 视力疲劳 显性斜视 斜视角
  • 简介:儿童盲诊治是视觉2020优先治疗区域,因为视力障碍孩子们将面对是长达一生失明。全球各种研究表明,有1/3到1/2儿童盲是可避免或者可治疗,白内障是可治疗儿童盲首位病因。

  • 标签: 白内障 儿童 盲/预防与控制 统计学 国家健康计划
  • 简介:糖尿病性视网膜病变(Diabeticretinopathy,DR)是最为常见致盲性眼底病变之一,其发病机制不明.长期以来,早期对于糖尿病性视网膜病变治疗只是单纯控制血糖,但这并不能完全阻止糖尿病性视网膜病变进一步发展.因此,研究全身相关因素影响作用十分重要.近年来,国内外大量研究认为,许多全身因素对糖尿病性视网膜病变发生发展起重要作用.本文综述此方面成果,总结必须严格控制相关危险因素,为最终通过全身综合干预以早期控制糖尿病性视网膜病变提供思路.

  • 标签: 糖尿病性视网膜病变 血糖控制 流行病学 发病机制 链脲素 血压
  • 简介:<正>今天许多种类内窥镜已应用于临床诊断。由于优良光源和光导系统使得精确观察成为现实。手术可以在电视屏幕下操作,并获得优质屏幕影像和内窥镜手术像片资料。1959年HopkinsHH博士发明了棒状透镜,1960年StorzK.在此基础上添加了光导纤维,这些形成了现代内窥镜突破性进展。本文总结了与内窥镜发明者StorzK.谈话内容。早期内窥镜是JacksonC.医学博士设计,在许多年内,这个设计没有进一步改进。培养一个内窥镜医师需要许多年时间在实验室用很讲究

  • 标签: 内窥镜手术 革命性 光导纤维 发明者 光学系统 医学博士
  • 简介:上课是常规教学中一个很重要环节,课堂教学效率高低直接影响到教学质量好坏。多媒体课件质量、多媒体与传统板书教学融合以及多媒体教学方式好坏直接决定教学质量,笔者在对这一问题探讨和分析后,试图寻找出一套较为完整适合于该课程教学方式,提高学生学习兴趣,使学生掌握教学重点和难点,取得更好效果。

  • 标签: 医学 多媒体教学 教学设计
  • 简介:今天,我们在这里召开2005年全国防盲工作研讨会。这次会议主要内容是:分析全国防盲工作面临形势和挑战,研究开展防盲工作重点和策略;研究制定2006-2010年全国防盲工作规划。同时,还要对“视觉第一中国行动”二期启动以来工作进行总结,对中期评估事宜和下一步工作进行部署。两天时间,任务还是比较重,我希望大家借此机会,广泛交流各地防盲治盲工作情况,借鉴各地有益工作经验,在充分研讨,制定出我国2006-2010年防盲工作规划同时,研究探索适合我国国情、进一步推进我国防盲治盲工作政策措施、有效途径。

  • 标签: 防盲治盲 白内障复明手术 白内障手术 世界卫生组织 眼科医生 工作研讨
  • 简介:目的探讨当前基层医院沙眼防治工作中出现若干问题。方法对门诊记录14600例沙眼患者依据年龄、生活习惯、卫生习惯、是否接受正规有效治疗以及复诊等情况进行调查和追踪随访。结果沙眼检出率高达22.86%,这与社会因素、个人生活卫生习惯、不能接受正规有效治疗和复诊率低密切相关。结论大力推广WHOSAFE策略,开展"防沙"健康教育工作,规范治疗,降低沙眼患病率,提高沙眼疗效。

  • 标签: 基层医院 沙眼 预防和治疗
  • 简介:护理安全是指在实施护理全过程中,患者不发生法律和法定规章制度允许范围内以外心理、机体结构或功能上损害、障碍、缺陷或死亡。通过对护理安全问题分析,认为造成护理安全问题和护患纠纷主要原因有护理人员方面的、管理方面及病人、社会方面的。只有依法行医、恪尽职守、加强自律和道德建设、规范服务行为、改善社会对医院再认识,建立协调健康医护关系,合理应用人力资源,优化护理管理制度,增强护理风险意识才能有效解决护理安全问题

  • 标签: 眼科 住院患者 护理安全 干预措施
  • 简介:AIM:Toexploretheeffectofsaturatedhydrogensalineonbluelight-inducedretinaldamageinrats.·METHODS:Theretinaldamageofratswasinducedbybluelightexposurefor6hoursandexamined8hours,16hoursand24hoursaftertheexposure.OnehundredfemaleSprague-Dawleyratswererandomlydividedintofourgroups.Group1included30ratsreceivedlightexposurewithoutanyothertreatment.Group2included30ratsreceivedlightexposurewithintraperitonealinjectionofnormalsaline.Group3included30ratsreceivedlightexposurewithintraperitonealinjectionofsaturatedhydrogensaline.AndGroup4includedtheother10ratswhichdidnotreceiveanytreatment.Theamountofintraperitonealinjectionofsaturatedhydrogensalineandnormalsalinewascalculatedintheratioof1ml/100gofratweight.SpecimenswerecollectedandprocessedbyH-Estaining,ultrastructureobservation,biochemicalmeasurement.Morphologicalchangeswereobservedbylightmicroscopeandtransmissionelectronmicroscope(TEM)andtheretinalouternuclearlayer(ONL)thicknesswasmeasuredbyIPP6.0,whilethemalondialdehyde(MDA)wasmeasuredbycolorimetricdeterminationat532nm.·RESULTS:AlthoughthestructureofretinainGroup1andGroup2wasinjuredheavily,theinjuryinGroup3wasmild.ThedifferencesbetweenGroup1andGroup2werenotsignificant.ComparedwiththeratsinGroup1andGroup2,theonesinGroup3hadmoreclearlydemarcatedretinastructureandmoreorderedcellsbylightmicroscopeandTEMobservation.TheONLthicknesses(400times)offourgroupsateachtimepointexceptbetweenGroup1andGroup2weresignificantlydifferent(P<0.05).ThethicknessesoftheONLinGroup1atthreetimepointswere30.41±4.04μm,26.11±2.82μmand20.63±1.06μm,inGroup2were31.62±4.54μm,25.08±3.63μmand19.07±3.86μm,inGroup3were29.75±3.62μm,28.83±1.97μmand27.61±1.83μm.InGroup4themeanofthethicknesswas37.35±1.37μm.Astimewentby,thedamageg

  • 标签: RETINA hydrogen ANTIOXIDANTS PHOTOTOXICITY DOI.3980/j.issn.2222-3959.2012.02.07
  • 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.

  • 标签: ANAEROBIC BACTERIA BACTERIAL isolation ENDOPHTHALMITIS DACRYOCYSTITIS
  • 简介:AIM:TodiscusstheimpactofLyciumBarbarumPolysaccharide(LBP)andDanshensupurifiedfromTraditionalChineseMedicine(TCM)onvascularendothelialgrowthfactor(VEGF)ofrabbitswithretinalneovascularization.METHODS:Fortyrabbitsweredividedintonormalcontrolgroup,modelcontrolgroup,LBPgroupandDanshensugroup.Animalsinthenormalcontrolgroupwerefedinthenormaloxygenenvironment.Animalsintheotherthreegroupswereputintotheenvironmentwith70%oxygenfor5daysinordertobuildthemodelofoxygen-inducedvascularproliferationretinopathy.AndthendifferentTCMextractwasinjectedintotheabdominalcavitiesoftheseannimals.After7days,theVEGFcontentofintheserumofrabbitwasmeasuredbydoubleantibodysandwichmethod.RESULTS:DataanalysisindicatedthatVEGFcontentwasasfollows:Danshensugroupwaslowerthanmodelcontrolgroup(12.92±3.84ng/Lvs19.32±4.15ng/L,P<0.05);LBPgroupandnormalcontrolgroupwerelowerthanmodelcontrolgroup(12.92±3.84ng/L,9.26±1.61ng/Lvs19.32±4.15ng/L,P<0.01);totalbloodviscosity,plasmaviscosity,cholesterolcontent,fibrinogencontentandtriacylglycerolcontentafterperitonealinjectionofLBPandDanshensuwereobviouslylowerthanbeforeinjection.CONCLUSION:TCMextract-LBPandDanshensucanprominentlyreducethecontentofVEGFintheprocessofvascularproliferativeretinopathyofrabbit;canpreventtheoccurrenceofretinalmicrovasculardiseasebyimprovingpartialoxygen-deficientenvironmentoraffectingallkindsofnewgrowthfactor.

  • 标签: LYCIUM Barbarum POLYSACCHARIDE Dan-shensu vascular ENDOTHELIAL
  • 简介:AIM:TopresenttheresultsofimplantationofIakymenkokeratoprosthesisinfivepatientswithvascularizedcornealleukomacausedbysevereocularinjury.·METHODS:Iakymenkokeratoprosthesiswasimplantedinto5eyesof5patients:4patientsweresufferedfromchemicalburnsand1patientfromexplosiveinjury.Thepreoperativevisualacuityrangedfromlightperceptiontohandmotion.Theimplantationsurgerywascomposedoftwo-stageprocedures.Thefollow-upperiodwasfrom9monthsto11years.Theoutcomemeasureswerevisualacuity,retention,andcomplicationsofthekeratoprosthesis.·RESULTS:Visionimprovementswereachievedinmostpatients.Allkeratoprosthesiswereretainedwithinthefollow-upperiod.Cornealmeltingoccurredinonepatientandfibrousclosureinanotherpatient,bothofwhichweresuccessfullytreated.Retinaldetachmentoccurredinonepatientaftersurgery.·CONCLUSION:Iakymenkokeratoprosthesisseemstobeapromisingalternativeforthepatientswithseverecornealinjury,butfurtherinvestigationisneededtoevaluatetheroleofIakymenkokeratoprosthesis.

  • 标签: Iakymenko KERATOPROSTHESIS VISUAL REHABILITATION COMPLICATIONS
  • 简介:AIM:Toinvestigatethefrequencyofidiopathicphacodonesis(IP)insenilecataractsubjectsandtheshort-termclinicaloutcomesfollowingcataractsurgery.METHODS:Thisinstitutionalcase-controlstudyincluded1301consecutivelow-incomecataractsubjectsfromJunetoNovember2009.Anteriorsegmentwerecarefullyevaluatedwithdilatedpupilunderslit-lamp.IPwerescreenedandgradedbyacriteriasetbytheauthors.Riskfactors,surgicaloutcomes,andoperativecomplicationswereanalyzed.RESULTS:Atotalof42subjects(3.2%)withIPwerediagnosedandclassifiedasgrade1(36subjects),grade2(5subjects)andgrade3(1subject).HarderlensesandintumescentcataractswereobservedintheIPgroupthanthecontrolgroup(P<0.05).Logisticsregressiontestalsoindicatedthemainriskfactorwasthehardnessofthelens.Theincidenceofzonulardialysisduringsurgerywas23.8%(10eyes),whichwassignificantlyhigherthanthecontrols(0.7%,P<0.001).Visualoutcomesofthetwogroupswerenotstatisticallyorclinicallysignificant.CONCLUSION:HardnucleusandintumescentcataractarerelatedtoIPinsenilecataractsubjectsinQinghai,China.Withmorecarebeingtaken,grade1andsomeofthegrade2IPsubjectsachievedsimilarsurgicaloutcomesascomparedtocontrols.

  • 标签: phacodonesis LENS NUCLEUS zonular DIALYSIS
  • 简介:<正>DirSir,IamdoctorGuo-YuanYang,fromtheDepartmentofOphthalmologyofWestChinaHospitalofSichuanUniversityinChengdu,SichuanProvince,China.Iwritetopresentacasereportofposteriorlentiglobuswithcataract.

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