简介：目的对眼科住院医师实施白内障囊外摘除术及人工晶体植入术中,手术并发症的预防及处理能力培训探讨。方法开展防盲治盲工作中,住院医师共施行215例(235只眼)的白内障囊外摘除术及人工晶体植入手术,对发生并发症进行回顾性分析。结果术后发生的手术并发症:后囊破裂15只眼(6．4％),虹膜脱出5只眼(2．1％),虹膜根部离断3只眼(1．3％),角膜水肿45只眼(19．1％),瞳孔上移10只眼(4．3％),前房皮质残留2只眼(0．9％),后囊瞳孔区皮质残留2只眼(0．9％),继发性瞳孔阻滞性青光眼1只眼(0．4％),黄斑囊样水肿1只眼(0．4％)。结论后囊膜破裂和角膜水肿是本组白内障囊外摘除术及人工晶体植入手术主要并发症,住院医师手术者应规范掌握手术要点是预防并发症发生的关键,对出现的手术并发症应积极妥善处理是减少并发症有效措施。

简介：目的探讨一组特殊设计镜片对周边屈光度、周边清晰视力范围和主观感受的影响。方法3例（4眼）被试者，年龄22-31岁，屈光度-2．0D，按随机顺序分别在单眼配戴普通非球面镜片、成长乐镜片、视特保大、中、小光区镜片的情况下进行周边屈光度、周边清晰视力范围测量和主观评分，主观评分包括远距和近距戴镜舒适度、清晰度和接受度。结果配戴5种镜片时，被试眼相对周边屈光度均为远视状态，远视度数随周边角度增加而增加。配戴普通非球面镜片和视特保大光区镜片时周边远视度数最大，视特保中光区镜片其次，成长乐镜片和视特保小光区镜片最小；配戴普通非球面镜片和视特保大光区镜片时的周边清晰视力范围最大，其次是视特保中光区镜片，最小的是成长乐镜片和视特保小光区镜片；远距评分为普通非球面镜片最高，视特保大光区镜片其次，然后为视特保中光区镜片，成长乐镜片及视特保小光区镜片最差；近距评分视特保大光区镜片接近普通非球面镜片，视特保中光区镜片和成长乐镜片其次，视特保小光区镜片最差。结论不同设计的中周部加光镜片对改变周边屈光度的作用存在差异，其配戴后的顺应性与镜片改变周边屈光度的程度呈负相关。

简介：Thekeratoprosthesis(KPro;artificialcornea)isaspecialrefractivedevicetoreplacehumancorneabyusingheterogeneousformingmaterialsfortheimplantationintothedamagedeyesinordertoobtainacertainvision.Themainproblemsofartificialcorneaarethebiocompatibilityandstabilityofthetissueparticularlyinpenetratingkeratoplasty.Thecurrentstudiesoftissue-engineeredscaffoldmaterialsthroughcomprisingcompositesofnaturalandsyntheticbiopolymerstogetherhavedevelopedanewwaytoartificialcornea.Althoughawideagreementthatthelong-termstabilityofthesedeviceswouldbegreatlyimprovedbythepresenceofcorneacells,modificationofkeratoprosthesistosupportcorneacellsremainselusive.Mostofthestudiesoncornealsubstratematerialsandsurfacemodificationofcompositeshavetriedtoimprovethegrowthandbiocompatibilityofcorneacellswhichcannotonlyreducethestimulusofheterogeneousmaterials,butalsomoreimportantlycontinuousandstablecorneacellscanpreventthedestructionofcollagenase.Thenecrosisofstromaandspontaneousextrusionofthedevice,allowformaintenanceofaprecornealtearlayer,andplaytheroleofensuringagoodopticalsurfaceandresistingbacterialinfection.Asaresult,improvementincornealcellshasbeenthemainaimofseveralrecentinvestigations;someefforthasfocusedonbiomaterialforitswellbiologicalpropertiessuchaspromotingthegrowthofcorneacells.Thepurposeofthisreviewistosummarythegrowthstatusofthecornealcellsaftertheimplantationofseveralartificialcorneas.

简介：目的：探讨新生儿泪囊炎行泪道探通术的手术时机及其安全性。方法：采用回顾性系列病例研究,对2009-01/2010-06在我院门诊就诊的137例165眼新生儿泪囊炎治疗情况进行分析。结果：本研究137例165眼,患儿年龄≤3月龄者64眼,其中加压探通治愈16眼,1次探通治愈48眼;～6月龄者68眼,其中加压冲洗治愈4眼,1次探通治愈62眼,2次探通治愈1眼,1例1眼未随诊;～12月龄者24眼,1次探通治愈12眼,2次探通治愈8眼,3次探通治愈2眼,未随诊2例2眼;～18月龄者9眼,其中1次探通治愈6眼,2次探通治愈3眼。结论：新生儿泪囊炎患者,若患儿身体发育正常,年龄〉2月龄者应尽早行泪道探通术,且安全可行。

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：目的：比较病理性高度近视黄斑裂孔性视网膜脱离（MHRD）手术中硅油与C3F8填充后视网膜复位率和高眼压发生率,为此类手术的填充物提供临床参考。方法：采用回顾性病例对照设计。在不同时间段连续观察病理性高度近视MHRD患者,分别采用玻璃体切割联合眼内填充硅油和气体的两组患者分别进行观察,从手术后1wk;1,3,6,12mo,视网膜复位率和眼压进行对比研究,观察患者视网膜复位及眼压的情况,得出最佳的填充方式。结果：初次手术后,硅油组视网膜复位率高于气体组,但两组视网膜复位率差异无统计学意义;患者眼压：硅油组高眼压发生率高于气体组,但差异无统计学意义。结论：病理性高度近视MHRD患者玻璃体手术后使用哪种填充物,应采取个体化方案。

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.