简介:AIM:Toassesstheeffectofmyopiaonthethicknessofretinalnervefiberlayer(RNFL)measuredby3Dopticalcoherencetomography(3D-OCT)inagroupofnonglaucomatousChinesesubjects.METHODS:Twohundredandfifty-eighteyesof258healthyChinesemyopicindividualswererecruitedandfourgroupswereclassifiedaccordingtotheirsphericalequivalent(SE):lowmyopia(n=42,-0.50
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:目的:探讨继发性角膜溃疡的临床治疗方案。方法:回顾性分析我院2006-12/2008-12临床诊断为"继发性角膜溃疡"的患者8例8眼,其中4例选择结膜瓣遮盖术,3例行部分板层角膜移植术(lamellarkeratoplasty,LKP),1例因角膜穿孔行穿透性角膜移植术(penetratingkeratoplasty,PKP)。术后随访4-10(平均6)mo,观察视力、溃疡愈合及复发情况、角膜植片和植床情况。结果:行结膜瓣遮盖术者溃疡均治愈;行部分LKP术者植片透明,植床残留薄层瘢痕,行PKP术者植片透明,两者视力均有所提高。所有病例溃疡未见复发。结论:对于继发性角膜溃疡,应该根据不同病例的特点采取个体化的手术方式治疗,从而获得比较满意的临床疗效。
简介:目的探讨外耳道解剖的CT影像毗邻关系。方法在PACS系统中调取2011~2013年来本院行中耳螺旋CT检查且耳道周围主要观测结构清晰者327例(654耳)的轴位片,在东软neusoft软件中,将图像放大后,在耳道中部断层片中测量鼓沟至面神经垂直部距离及毗邻颞颌关节的耳道前壁厚度。结果鼓沟到面神经垂直部约为4mm,侧别差异有统计学意义(P〈0.05),性别间差异无统计学意义(P〉0.05);耳道前壁厚度约1.5mm,侧别差异有统计学意义(P〈0.05),性别间差异有统计学意义(P〈0.05)。结论螺旋CT可以良好显示耳道周围主要结构的毗邻关系,为耳道成形及耳道入路镫骨手术提供实用参数。
简介:·Descemet’smembranedetachment(DMD)canbeapotentiallyseriouscomplicationofintraocularsurgeryoroculartrauma.Thecauseisnotveryclear.WearetryingtoremindanawarenessofthespectrumofDMDresultingfromtrabeculectomybypresentingacaseofextensiveDMDaftertrabeculectomywhichwassuccessfullyrepaired.
简介:目的:探讨在后节手术中合并前节疾病(白内障、青光眼、角膜病)联合手术的利与弊,并分析影响手术效果的危险因素。方法:有针对性的分为A组增殖性糖尿病视网膜病变(proliferativediabeticretinopathy,PDR),B组复杂性视网膜脱离(retinaldetachment,RI)),为了便于对比,又将A组分为A,组:单纯玻璃体切割组;A:组:玻璃体切割+白内障摘除组;A,组:玻璃体切割+白内障摘除+人工晶状体植入术组。将B组分为B,组:单纯玻璃体切割组;B2组:玻璃体切割+白内障摘除组;B组:玻璃体切割+白内障摘除+人工晶状体植入术组。结果:手术的并发症为主要观察指标,A组为新生血管性青光眼,B组为手术复发或更严重的PVR形成。其并发症的发生率A3〉A2〉A1,A3明显高于A2和A1,均有统计学意义,A2〉A1,但无统计学意义。B组三组的结果与A组三组相同。结论:可能的情况下尽量不选择联合手术,如影响操作则选择非一期植入人工晶状体。
简介:目的:通过临床的系统观察研究泪点发生炎症的原因及泪点炎发展转归的临床规律,以及设计实施相应的手术治疗等,显示把泪点炎作为独立疾病列出的必要性。方法:用裂隙灯观察泪点和眼表,并泪道冲洗、探通检查;用微距照相记录泪点典型病变,其中有24眼泪点切除组织进行病理学检查。结果:泪点炎病临床特征:几乎所有泪点炎患者都合并急、慢性结膜炎;多数为泪点单独发炎,少数与后续泪道炎性阻塞疾病合并存在。急性泪点炎少见,溢热泪,泪点局部红肿、痒痛,泪点壁贴合关闭泪点口,以抗炎药物治疗为主。慢性泪点炎多见,溢冷泪,主要有泪点壁软缩,泪点乳头平坦,泪点口向心性缩小;增殖膜覆盖泪点口;泪点壁肿胀、增生贴合关闭泪点口;增生的睑结膜包裹稀薄的积脓包埋泪点口,形成白色隆起的泪点外观四种类型。以手术治疗为主,效果良好。结论:本研究结果显示,泪点炎病多发而常见,有独特的发展转归临床规律,和单独的手术治疗方法,把泪点炎作为独立疾病单独列出,以减少泪道病诊治的疏漏和错误等非常必要。