简介：儿童盲的诊治是视觉2020的优先治疗区域,因为视力障碍的孩子们将面对的是长达一生的失明。全球各种研究表明,有1/3到1/2的儿童盲是可避免或者可治疗的,白内障是可治疗儿童盲的首位病因。

简介：今天,我们在这里召开2005年全国防盲工作研讨会。这次会议的主要内容是:分析全国防盲工作面临的形势和挑战,研究开展防盲工作的重点和策略;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”二期启动以来的工作进行总结,对中期评估事宜和下一步工作进行部署。两天的时间,任务还是比较重的,我希望大家借此机会,广泛交流各地防盲治盲工作情况,借鉴各地有益的工作经验,在充分研讨,制定出我国2006-2010年防盲工作规划的同时,研究探索适合我国国情、进一步推进我国防盲治盲工作的政策措施、有效途径。

简介：目的探讨基层医院白内障手术从现代囊外摘除术(ECCE)到超声乳化术(phacoemulsification)的过渡.方法对有EccE手术经验的医生,通过130目艮动物实验后,进行100例老年性白内障Phaco带教培训.结果术后1天视力≥0.3者94%,≥0.5者83%;术后3月视力≥0.3者96%,≥0.5者90%,人工晶体植入率100%,无角膜失代偿、核坠落、视网膜脱落等严重并发症,实现了从ECCE到Phaco的安全过渡.结论基层医生只要以严谨、积极的科学态度进行学习,有扎实的显微手术基础,严格选择病例,配以良好的设备,强调规范化操作,同样能成功地完成转化过程,开展较高质量的白内障超声乳化手术.

简介：AIM:Tocharacterizetheclinicalfeatures,diagnosis,treatmentandprognosisofuveitisassociatedwithankylosingspondylitis(AS)inChinesepatients.·METHODS:TwohundredandthreepatientswithuveitisassociatedwithASfollowed-upintheThirdMilitaryMedicalUniversityDapingHospitalbetween2005and2010wereretrospectivelyevaluatedinthisstudy.Completeophthalmologicalexaminationswereevaluatedatbaselineandduringthefollow-upperiod.Thegender,age,follow-uptime,meanfrequencyofuveitisonset,andaccompanyingeyeexaminationfindings,history,demographicalparameterswerereviewed.Allthepatientspresentedcompleteclinicalandradiologic(sacroiliac,lumbar,dorsalandcervicalspine,knee,ankle,shoulder,hip,elbow)evaluation.HLA-B27typingwasalsosearched.·RESULTS:Therewere203patientsdiagnosedwithASassociateduveitis.AllshowedsacroiliacX-raychangesindicativeofAS.Therewere184maleand19femalepatients.Theaverageageofpatientswas35±12(range18-50).Meanfollow-upperiodwas2.4years(1-5years).Acuteanterioruveitiswasthemostcommontypeofuveitisinbothgenders.121eyespresentedunilateralinvolvement(55.2%),and92eyespresentedbilateralinvolvement(45.3%)withonsetalternately.22eyesoccurredhypopyon,16eyeswerefoundanteriorvitreouscells,7eyeswerenotedreactivemacularedemaorexudation,29eyespresentedposteriorsynechiaeofiris,and14eyespresentedcataract,9eyespresentedsecondaryglaucoma,2eyespresentedbendcornealdegenerationand1eyespresentedatrophyofeyeball.Atthefinalvisit,uveitiswaswellcontrolledinmostpatients.·CONCLUSION:ASassociatedwithuveitisinChinesepatientsmainlymanifestsasacuteanterioruveitis.AcombinationofcorticosteroidswithothermydriasisagentsiseffectiveformostASassociatedwithuveitispatients.Ingeneral,theprognosisisgoodinthesecases.

简介：AIM:ToevaluatetheeffectofCollagencross-linkingonthepreventionofmeltinginrabbitcorneasafteralkaliburn.·METHODS:TwentyNewZealandwhiterabbitswererandomlydividedintomodelcontrolgroupandcollagencross-linkingtreatmentgroup.Thesecondgroupofrabbitsreceivedcollagencrosslinkedtreatment.Bothgroupswereappliedwithantibioticeyedropstopreventinfection.Thecorneaswereevaluatedformelting,opacity,pathologicalandimmunohistochemistry,recordthechangeswhen28daysaftertheanimalswerekilled.·RESULTS:Inthecontrolgroup,6outof8rabbitsshowedcornealmeltingafterinjury(14±4)days,whiletwocornealperforated.Incollagencross-linkingtreatmentgroup,onerabbitshowedcornealmeltingafterinjury23days,withoutcornealperforation;cornealdissolutionratebetweenthetwogroupswassignificantlydifferent(P<0.05).Pathologicalexaminationsuggestedthatinthetreatmentgroup,mildcornealedema,milddamagetocollagenfibers,inflammatorycellinfiltrationwassignificantlylessthanthecontrolgroup.Immunohistochemistryshowedthatcornealcollagenfibersarrangedinneatrowsinthecontrolgroup.·CONCLUSION:Collagencross-linkingtreatmentnotonlycanpreventanddelaythecornealmeltingafteralkaliburn,butalsocanreducethedestructionofcornealcollagenfibersandinfiltrationofinflammatorycellsinthecornealtissue.

简介：1.以下哪种情况引起青光眼的发病机理和其它的不一样:A)Sturge-Weber综合征B)甲状腺相关眼病c)无虹膜D)颈动脉海绵窦瘘2.和眼内压水平有关的主要因素包括以下,除了:A)睫状后长动脉收缩压B)房水生成率C)房水流出阻力D)上巩膜静脉压3.预测氩激光小梁成形术成功的最主要因素是:A)诊断(即青光眼的类型)B)小梁网色素程度

简介：1．以下不属于视网膜血管增生性肿瘤特点的是：A．多数位于视网膜的下半周，特别是颞下方视网膜；B．其病理为血管组织和胶质的不同比例混合性异常增生；C．常见于中老年人；D．多为继发性改变。2．视锥细胞营养不良与Stargardt病不同的临床表现是：A．色觉异常往往表现在视力下降之前；B．眼底可以表现为“牛眼”征；C．有遗传异质性，可表现为多种遗传方式；D．一般不伴有夜盲。

简介：1．下列关于视网膜电图的说法不正确的是：A．a波起源于光感受器内段；B．b波起源于Muller细胞或双极细胞；C．视网膜血管性疾病主要表现为振荡电位降低；D．性连锁视网膜劈裂征呈现降低的a波和b波。2．下列关于角膜营养不良的说法不正确的是：A．格子样角膜营养不良是常染色体显性遗传，发病早，10岁前即已发病；

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简介：1．雷珠单抗眼内注射常见的不良反应不包括以下哪项？A．结膜出血；B．飞蚊症；C．眼内压升高；D．视网膜撕裂。2．关于高度近视治疗，以下说法错误的是：A．有症状的视网膜裂孔应考虑光凝、冷凝或巩膜扣带术；B．中心凹下新生血管可行抗血管内皮生长因子注射；C．建议运动时配戴防护眼镜；D．旁中心凹脉络膜新生血管不可行激光光凝治疗。

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简介：人的双眼是在同一个方向面向前方的,而许多动物的眼睛是在头的两侧各一个的（比如马）。正常情况下,人眼运动是协调的,所以物体在每只眼睛的中央成像。由于双眼分开一段距离，所以物体在每只眼成的像，有微小的差别。大脑将来自双眼的像融合，形成一个有深度的三维图像。这种三维视觉（又称为立体视觉或双眼视）给我们深度知觉。这使我们可以更准确的判断距离，尤其是在物体靠近我们时。试着只睁一只眼来穿针，你就会更加体会双眼视的好处。

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简介：AIM:Todescribethedesignandpreliminaryresultsofthehospitalbasedepidemiologicalstudyfordiabeticretinopathy(HBESDR),anongoingepidemiologicalstudytoestimatetheprevalenceofdiabeticretinopathy(DR)andtoelucidatetheclinical,anthropometric,biochemicalandanyotherriskfactorsassociatedwithdiabeticretinopathy.METHODS:Totally2000diabeteswillberecruitedfromtheDiabeteseyeclinicintheFirstAffiliatedHospitalofChinaMedicalUniversity.AllsubjectsunderwentbloodsugarestimationandOralGlucoseToleranceTesttodiagnosediabetes.Alldiabeteswouldundergocompletequestionnaire,acomprehensiveeyeexamination.Bloodandurinewouldbecollectedforbiochemicalinvestigations.AllfundusphotographsforanyDRwillbegraded.Participantswhoneedtreatmentwillbesenttotheophthalmicclinicandfollow-upintervalprogramforallsubjectswillbesuggested.Acomputerizeddatabaseiscreatedfortherecords.RESULTS:Todate,1174diabeteshavebeenrecruited,therewere350(29.81%)DRinalldiabetes,mostofthemwerewithmildnon-proliferativediabeticretinopathy(NPDR)(139,39.71%);71(20.29%)moderateNPDR,66(18.86%)severeNPDR,74(21.14%)proliferativediabeticretinopathy(PDR).Females,longerdurationofdiabetes,familyhistoryofdiabetesandhypertensionhadastatisticallysignificantincreaseinriskofanyDR.CONCLUSION:ThestudyisexpectedtoprovideanestimateoftheoverallprevalenceofDRandtheprevalencewithdifferentdurationofdiabetesandalsoabetterunderstandingoftheriskfactorsassociatedwithDR.

简介：放射治疗是许多头颈部肿瘤的有效治疗,随着放疗技术的改进,肿瘤得到较好的控制,头颈部肿瘤尤其是鼻咽癌放疗后的5年生存率明显提高.生存期的延长,生存质量越来越受到重视,本文就听觉系统的放射损伤与防治的有关文献进行综述.

简介：下咽癌的年发病率为（0．17～0．80）／10万，占头颈部恶性肿瘤的1．4％～7．0％，占全身恶性肿瘤的0．5％。其主要病理类型为鳞状细胞癌，多发生于梨状窝区（70％～80％），其次为下咽后壁区（5％～22％），

简介：<正>小儿多瞬症是近几年在临床上经常见到的,以眼睑的频繁瞬目为主的疾病,现将我院诊治的57例患者,报告如下。

简介：AIM:ToidentifythegeneticdefectinaChinesefamilywithbilateralprogressivechildhoodposteriorcataract.METHODS:Atwo-generationfamilywasrecruitedinthisstudy.Familyhistoryandclinicaldatawererecorded.AllreportedcandidategenesassociatedwithcongenitalposteriorcataractwerescreenedbydirectDNAsequencing.·RESULTS:Allaffectedindividualspresentedposterioropacitiesinthelens.Directsequencingofthecandidategenesshowedaheterozygousc.2668C>TvariationinEPHA2gene,whichresultedinthereplacementofargininebycysteineatcodon890(p.R890C).Thismutationwasfoundintwoaffectedindividuals,butwasnotobservedin200normalcontrols.·CONCLUSION:Wereportanovelmutation(p.R890C)intheEPHA2receptortyrosinekinasegene.ThefindingexpandsthemutationspectrumofEPHA2inassociationwithposteriorcataract.