简介：AIM:ToinvestigatetheexpressionsoftypeIcollagen,α2integrinandβ1integrinintheposteriorscleraofguineapigswithdefocusmyopiaandwhetherbasicfibroblastgrowthfactor(bFGF)injectioninhibitstheformationanddevelopmentofmyopiabyupregulatingtheexpressionoftypeIcollagen,α2integrinandβ1integrin.METHODS:After14daysoftreatment,therefractivestateandaxiallengthweremeasuredandthelevelsoftypeIcollagen,α2integrinandβ1integrinwereassayedintheposteriorscleraeofgroupsofguineapigsthatworeamonocular-7Dpolymethylmethacrylate(PMMA)lensorhad-7DlenswearfollowedbytheperibulbarinjectionofPhosphateBufferSolution(PBS)orbFGF.Theuntreatedfelloweyeservedasacontrol.Guineapigswithnotreatmentservedasnormalgroup.·RESULTS:Theresultsshowedthat14daysofmonoculardefocusincreasedaxialeyelengthandrefraction,whilebFGFdeliveryinhibitedthemmarkedly.Further,itwasalsofoundthatthemonocular-7DlenscoulddecreasethelevelsoftypeIcollagen,α2integrinandβ1integrinexpressions,while,unlikePBS,bFGFincreasedthemsignificantlyincomparisontocontralateralcontroleyesandnormaleyes.CONCLUSION:bFGFcanpreventtheformationanddevelopmentofdefocusmyopiabyupregulatingtheexpressionsoftypeIcollagen,α2integrinandβ1integrin.Takentogether,ourresultsdemonstratethatbFGFpromotesscleraremodelingtopreventmyopiainguineapigs.

简介：MicroRNAs（miRNAs）是一类长18~25个核苷酸的单链非编码小分子RNA,属于表观遗传学范畴,广泛存在于真核细胞中,通过其表达量的上调和下调,影响细胞分化、增殖、凋亡,肿瘤发生,机体代谢以及衰老等生命过程。近年来有研究发现,miRNAs在眼部的晶状体中也有表达,其表达量的异常可能与年龄相关性白内障（ARC）有密切关系。本文主要就miRNAs与ARC相关性的研究进展作一综述。

简介：为探讨迷路的老化过程,应用透射电镜观察了新生、青年、老年豚鼠的耳蜗和迷路血管系统的变化。发现老年豚鼠血浆成分有改变、听力呈下降倾向;毛细胞、迷路血管及螺旋神经和螺旋神经节细胞均可见一系列损害。作者推测在耳蜗老化过程中血管系统的变化非常重要,至少是耳蜗其他部位老年性改变的原因之一。

简介：AIM:Toassessthequantitativeassociationbetweenanisometropiamagnitude(AM)andthelossesofresolutionandcontrastsensitivity;andtoexemplifyhowthefunctionoffusionandstereopsisvarywithAMinpreviouslyuntreatedanisometropicamblyopia.METHODS:Atotalof57patientswithpreviouslyuntreatedanisometropicamblyopiawithoutstrabismus(range:8-35years),weremeasuredrefractiveerror,bestcorrectedvisualacuity(BCVA),fusionandstereopsis,and48patientshavecompletedcontrastsensitivityfunctiontest.AMwasdeterminedbydioptricvectoradditionmodel,andtheamblyopiadepthwasdeterminedbythedifferenceofBCVAinlogMARunitsbetweentheamblyopicandfelloweyes.RESULTS:AMwassignificantlycorrelatedwithbothamblyopiadepth(PearsonR=0.728,P<0.001)andtheinter-oculardifferenceoftheareaunderthelogcontrastsensitivityfunction(AULCSF)(R=0.505,P<0.001).Depthofamblyopiaandtheinter-oculardifferenceofAULCSFwasalsosignificantlycorrelated(R=0.761,P<0.001).Themoreseverityofamblyopia,thepoorerlevelsofcontrastsensitivity.MostpureanisometropeswithAMwaslessthan3.0Dretainfusionandsomestereopsis,butwhenAMweremorethan3.0D,especiallyfortheanisometropeswhoseAMwasmorethan6.0D,fusionandstereopsisfunctionwereseriouslyimpaired.CONCLUSION:Inthepatientswithpreviouslyuntreatedanisometropicamblyopia,higherdegreeofanisometropiaissignificantlyassociatedwithdeeperamblyopia,worsecontrastsensitivity,fusionandstereopsisfunctions.

简介：目的：探讨高度近视黄斑病变的光学相干断层扫描（OCT）和眼底荧光血管造影（FFA）的形态学特征、分类和对比分析。方法：对入选的高度近视黄斑病变患者61例101眼均行标准对数视力表检查，验光确定屈光度及最佳矫正视力（BCVA），并用IOL-Master测量眼轴长度。入选者需在同一天内行散瞳眼底检查、OCT及FFA检查，必要时行眼底联合造影（FFA＆ICGA）。分析不同类型的OCT及FFA形态学特征之间的相互联系，并探讨其与屈光度、最佳矫正视力、眼轴长度及中心凹厚度之间的关系。结果：FFA分类的漆样裂纹型在OCT分类的1型中所占比例为57．14％，显著高于新生血管型和黄斑萎缩型（21.43％），差异有统计学意义（P＜0．05）。FFA分类的黄斑萎缩型在OCT分类的2型中所占的比例为67．80％，显著高于漆样裂纹型（18．64％）和新生血管型（13．56％），差异有统计学意义（P＜0．05）。OCT3型均属于FFA分类的黄斑萎缩型。OCT1型的屈光度、眼轴长度明显低于2型和3型，而最佳矫正视力和中心凹厚度则明显高于2型和3型。FFA的漆样裂纹型与新生血管型在屈光度及眼轴长度上虽无明显差异，但后者的BCVA及中心凹厚度显著低于前者（P＜0．05）。漆样裂纹型及新生血管型的屈光度、眼轴长度均显著低于黄斑萎缩型，最佳矫正视力则明显高于黄斑萎缩型（P＜0．05）。结论：高度近视黄斑病变的OCT和FFA形态学特征密切相关，结合OCT和FFA的图像特征对高度近视黄斑病变形态学改变进行对比分析，不仅有助于明确病变的性质，提高我们对疾病发病机制及预后转归的认识，更为临床诊疗提供了有力的支持。

简介：后发性白内障是现代白内障术后最常见的并发症。术后晶状体囊残留的晶状体上皮细胞的增殖、迁移、纤维化生是形成后发性白内障的主要原因。目前防治后发障的研究主要集中在药物除去或破坏残留晶状体上皮细胞。实验研究许多细胞毒药以及抑制晶状体上皮细胞生长和纤维化药物可以预防后发障，但目前临床上还没安全、有效的防治白内障方法。

简介：目的：应用Pentacam眼前节测量分析系统对高度近视眼行飞秒激光LASIK和小切口基质透镜取出术后的角膜后表面的变化进行观察比较。方法：选取2015-05/12于我院行激光角膜屈光手术的高度近视患者（-6.00D≤等效球镜度数≤-10.00D）67例132眼,根据患者接受手术方式的不同分成飞秒激光制瓣联合准分子激光原位角膜磨镶术（简称FS-LASIK组）66眼和行小切口基质透镜取出术（简称SMILE组）66眼,术中SMILE组角膜帽厚度和FS-LASIK组术中角膜瓣厚度都设置为110μm。分别于术前、术后3、6mo利用Pentacam测量患者角膜后表面高度,观察对比其术前术后的角膜后表面高度的变化量。结果：术后6mo,FS-LASIK组角膜后表面高度为6.47±1.65mm,显著高于术前5.20±1.32mm。SMILE组角膜后表面高度为6.40±1.33mm,显著高于术前5.18±1.25mm,差异均具有统计学意义（P〈0.05）;术后6mo,FS-LASIK组角膜表面高度前凸量（1.29±1.28mm）与SMILE组（1.22±0.89mm）相当,差异无统计学意义（P〉0.05）。结论：FS-LASIK和SMILE矫正高度近视术后均出现一定程度的角膜后表面前突,后表面高度值增加;FS-LASIK相较于SMILE,术后早期角膜后表面变化量略大,但无明显的临床差别,SMILE术后角膜后表面形态稳定性相对略好。

简介：<正>DirSir,IamdoctorGuo-YuanYang,fromtheDepartmentofOphthalmologyofWestChinaHospitalofSichuanUniversityinChengdu,SichuanProvince,China.Iwritetopresentacasereportofposteriorlentiglobuswithcataract.

简介：AIM:ToInvestigatetheeffectsoftransforminggrowthfactorβ2(TGF-β2)andconnectivetissuegrowthfactor(CTGF)ontransdifferentiationofhumanlensepithelialcells(HLECs)culturedinvitroandsynthesisofextracellularmatrix(ECM).METHODS:HLECsweretreatedwithTGF-β2(0,0.5,1.0,5,10μg/L)andCTGF(0,15,30,60,100μg/L)fordifferenttimes(0,24,48,72h)invitroandtheexpressionofα-smoothmuscleactin(α-SMA),themaincomponentoftheextracellularmatrixtypeⅠcollagen(Col-1)andfibronectin(Fn)weremeasuredbyusingreal-timepolymerasechainreaction(PCR)andwestern-blot.RESULTS:TGF-β2andCTGFsignificantlyincreasedexpressionofα-SMAmRNAandprotein(P<0.05,P<0.001),FnmRNAandprotein(P<0.001),Col-1mRNAandprotein(P<0.001).TGF-β2couldinduceHLECsexpressionofCTGFmRNAandproteinindosedependentmanner(P<0.05,P<0.001).TGF-β2andCTGFcouldinduceHLECstoexpressα-SMA,FnandCol-1intime-dependentmanner.EachtimeofTGF-β2andCTGFinducedHELCsexpressionofα-SMA,Fn,Col-1mRNAandproteinwassignificantincreasecomparedwithcontrol(P<0.05,P<0.001).CONCLUSION:TGF-β2andCTGFcouldinduceHLECsepithelialmesenchymaltransitionandECMsynthesis.

简介：AIM:Tostudythedistributionofocularhigher-orderaberrations(HOAs)andmesopicpupilsizeinindividualsscreenedforrefractivesurgery.·METHODS:OcularHOAsandmesopicpupilsizewerestudiedin2458eyesof1240patientswithmyopia,myopicastigmatismandcompoundmyopicastigmatismand215eyesof110patientswithhyperopia,hyperopicastigmatismandcompoundhyperopicastigmatismusingtheZywaveaberrometer(Busch&Lomb).Allpatientshadcorrectablerefractiveerrorswithoutahistoryofrefractivesurgeryorunderlyingdiseases.Root-mean-squarevaluesofHOAs,totalsphericalaberration,totalcomaandmesopicpupilsizewereanalyzed.OcularHOAsweremeasuredacrossa≥6.0mmpupil,andpupilsizemeasurementswereperformedunderthemesopiccondition.·RESULTS:ThemeanvaluesofHOAs,totalsphericalaberrationandtotalcomainthemyopicgroupwere0.369μm,±0.233,0.133±0.112μmand0.330±0.188μm,respectively.InthehyperopicgroupthemeanvaluesofHOAs,totalsphericalaberrationandtotalcomawere0.418μm±0.214,0.202±0.209μmand0.343±0.201μm,respectively.HyperopesshowedgreatertotalHOAs(P<0.01)andtotalsphericalaberration(P<0.01)comparedtomyopes.Inage-matchedanalysis,onlytheamountoftotalsphericalaberrationwashigherinthehyperopicgroup(P=0.05).Mesopicpupilsizeinthemyopicgroupwaslarger(P≤0.05).·CONCLUSION:TheresultssuggestedthatsignificantlevelsofHOAswerefoundinbothgroupswhichareimportantforplanningrefractivesurgeriesonIranians.Thereweresignificantlyhigherlevelsoftotalsphericalaberrationinhyperopescomparedtomyopes.Mesopicpupilsizewaslargerinmyopicgroup.

简介：AIM:Toexaminetheα-Galgeneexpressionanddistributioninthedifferentspecies/genusanddevelopingphaseanimalocularsurfacetissue.METHODS:α-Galbindingassaywerecarriedoutonvariousanimaleyesections.Photograph,slit-lampobservationonvariouseyeshowednormalcornealtransparence.RESULTS:Astrongα-Galexpressionininvertebratesandsomevertebratesoculartissue,butnoα-Galbindinginbirds,fishandmammal.α-Galexpressionchangeinthedevelopmentofmiceocularsurfacetissue(exceptsclera)anddisplaygenusdependencyinthedifferentmurineocularsurfacetissue.CONCLUSION:Thisstudyidentifiedspecificα-Galepitopesbindingareaintheocularsurfaceofseveralspeciesandmaysolvetheproblemthatnaiveocularsurfacemaybeusedasnaturalα-Galgeneknockoutmodel/highriskimmunologicrejectionmodelorocularsurfacescaffoldmaterial.

简介：AIM:Toinvestigatetheefficacyofnon-buckledvitrectomywithclassicalendotamponadeagentsinthetreatmentofprimaryretinaldetachment(RD)complicatedbyinferiorbreaksandproliferativevitreoretinophathy(PVR).METHODS:Aretrospective,consecutiveandcaseseriesstudyof40patientswithinferiorbreakRDandPVR≥C1wasconducted.Allpatientsunderwentastandard3-port20-gaugeparsplanavitrectomy(PPV)withgasorsiliconeoiltamponadewithoutsupplementaryscleralbuckling.Thevitreousandallproliferativemembranewerecompletelyremoved,andretinectomywasperformedwhennecessary.Themeanfollow-upwas12.5months.Theprimaryandfinalanatomicsuccessrate,visualacuityandcomplicationswererecordedandanalyzed.RESULTS:Primaryanatomicsuccessratewasachievedin35of40eyes(87.5%)andthefinalanatomicsuccessratewas100%.ThemostcommoncauseofredetachmentwasrecurrentPVR.Thebest-correctedvisualacuity(BCVA)atfinalfollow-upwasimprovedin34eyes(85%),remainedstablein1eye(2.5%),andworsenedin5eyes(12.5%).Themeanvisualacuityatfinalfollow-upwasimprovedsignificantly(P=0.000).CONCLUSION:ThisretrospectivestudyprovidesevidencethatvitrectomywithoutscleralbucklingseemedtobeaneffectivetreatmentforinferiorbreakRDwithPVR.Withcompleteremovalofvitreousandproliferativemembranesandtimingofretinectomy,theinferiorbreakswhichcomplicatedwithPVRcouldbeclosedsuccessfullywithoutadditionalscleralbuckling.

简介：目的：探讨雷珠单抗（ranibizumab）治疗特发性脉络膜新生血管（idiopathicchoroidalneovascularization,ICNV）的有效性,分析在光学相干断层扫描（opticalcoherencetomography,OCT）下不同形态表现的特发性脉络膜新生血管（Ⅰ型和Ⅱ型）的疗效差异,进一步为雷珠单抗在治疗脉络膜新生血管的有效性提供±据,指导临床治疗。方法：对我院2013-10/2014-06的31例（Ⅰ型9例,Ⅱ型22例）诊断为＂ICNV冶并接受玻璃体腔注射雷珠单抗的患者资料进行回顾性分析,比较分析最佳矫正视力（best-correctedvisualacuity,BCVA）和OCT测量病灶处视网膜最大厚度的变化趋势有无不同。结果：患者31例（其中Ⅰ型9例,Ⅱ型22例）经统计学分析,在术前与术后1,3moBCVA和病灶视网膜最大厚度的比较具有统计学意义,不同ICNV类型患者治疗前后的最佳矫正视力及病灶处视网膜最大厚度的变化趋势的差异无统计学意义,说明雷珠单抗玻璃体腔注射对于治疗特发性脉络膜新生血管疗效肯定,对于Ⅰ型和Ⅱ型ICNV的临床治疗效果不具显著性差异。结论：玻璃体腔注射雷珠单抗治疗特发性脉络膜新生血管疗效肯定,对于Ⅰ型和Ⅱ型ICNV本组研究中尚未发现存在疗效差异。其安全性和远期并发症需进一步研究证实。

简介：目的：报道眼内抗生素注药成功治愈玻璃体腔内注射曲安奈德后感染性眼内炎1例。方法：病例报道。结果：患者1例在接受玻璃体腔内注射曲安奈德后被培养证实并发感染性眼内炎，发病90多小时后进行了玻璃体腔内联合抗生素注射取得了满意的效果。结论：玻璃体腔内注射曲安奈德能够有效减轻视网膜分支静脉阻塞后的黄斑水肿，但患者应该被密切随访以警惕非感染性或细菌感染性眼内炎的发生。

简介：目的：分析丝裂霉素C对青光眼小梁切除术后眼内压和眼血流的影响,探讨其有效性和安全性。方法：将103例青光眼患者随机分为两组,均给予青光眼小梁切除术,观察组在术中行丝裂霉素C抗瘢痕治疗;术后完成6-12mo随访,对比两组患者的临床眼压控制疗效、并发症发生率及视网膜中央动脉血流动力学指标。结果：观察组临床疗效优于对照组（P〈0.05）;两组患者的总并发症发生率无统计学差异（P〉0.05）,但并发症类型有所区别,观察组多发生低眼压和畏光症状,对照组多发生瘢痕性阻塞。治疗前,两组患者的眼压动力学指标无统计学差异（P〉0.05）;治疗后1mo,观察组收缩期峰速（peaksystolicvelocity,PSV）与舒张末期血流速度（enddiastolicvelocity,EDV）明显低于对照组,阻力指数（resistanceindex,RI）与搏动指数（pulsatilityindex,PI）明显高于对照组,差异有统计学意义（P〈0.05）;治疗后6mo,观察组PSV与EDV明显高于对照组,RI与PI明显低于对照组,差异有统计学意义（P〈0.05）。结论：丝裂霉素C对青光眼小梁切除术患者的术后不良影响时间较短,其长期疗效安全、可靠。

简介：·Thisisacasepresentationofaverybizarreopenglobetraumawithanteriorsegmentforeignbody-fishinghookstuckinthecorneaandiris.Complicationsduetothiskindofeyetraumamightbeveryhazardousandwithseriousimpactonvisualfunction.Wearerepresentingourapproachandexperienceofthreestepmanagementofthiskindofeyeinjury:first-extracttheforeignbody,closeandreconstructtheeyeball,second-fightinflammation,andthird-restorethevisualfunctionbycataractsurgery.·

简介：AIM:ToevaluatethecornealendothelialcelldensityandmorphologyinChinesepatientswithpseudoexfoliationsyndrome(PEX).·METHODS:Medicalrecordsof16patients(20eyes)withPEXwhopresentedtoourinstitutionbetweenJuly2008andJune2010wereretrospectivelyreviewed.Thirteeneyeshadcombinedglaucoma.Theinformationoffiveapparentlynormalfelloweyesinthesepatientswasalsorecorded.Lefteyesof20patientswithbilateralsenilecataractsbutnoothereyediseasewereincludedascontrols.Specularmicroscopywasperformedinalleyestoanalyzeforcornealendothelialcelldensityandmorphology.Celldensity,coefficientofvariationincellsize,andpercentageofhexagonalcellsincornealendotheliumwereevaluated.·RESULTS:ThemeancornealendothelialcelldensityinthePEXeyeswas2298±239cells/mm2,significantlylowerthanthatinthecataracteyes(2652±18cells/mm2,P=0.026),buttherewerenosignificantdifferencesincoefficientofvariationofcellsizeandfrequencyofhexagonalitybetweenthesetwogroups.NosignificantdifferencesinthethreeparameterswerefoundbetweentheapparentlynormalfelloweyesandthePEXeyesorthecataracteyes,orbetweenthePEXeyeswithandwithoutglaucoma.·CONCLUSION:CornealendothelialcelldensitymaydecreaseinChinesepatientswithPEX.ThedevelopmentofglaucomainPEXeyesdoesnotseemtoberelatedwiththechangeincornealendothelialcelldensityormorphology.

简介：目的：探讨白内障合并晶状体脱位范围〉2个象限的患者,Ⅰ期行白内障囊内摘除术＋前部玻璃体切割术,术后3mo矫正视力〉0.3者,Ⅱ期行小切口两点固定人工晶状体悬吊术的临床疗效。方法：对2014-07/2016-12我院白内障科就诊的34例34眼白内障合并晶状体脱位范围〉2个象限的患者,Ⅰ期行白内障囊内摘除术＋前部玻璃体切割术,3mo后矫正视力〉0.3者,Ⅱ期行小切口两点固定人工晶状体悬吊术,分别观察患者术后1wk,1、3mo裸眼视力、最佳矫正视力、眼压、角膜散光度、术后并发症情况。结果：随着术后恢复时间的延长,患者各期的裸眼视力和最佳矫正视力均较术前有明显提高。术后3mo最佳矫正视力0.1~〈0.3者1眼,0.3~〈0.5者8眼,0.5~〈0.7者16眼,〉0.7者9眼,达到或接近术前的最佳矫正视力。术后1wk,1、3mo眼压处于正常范围内。手术并没有明显增加角膜的散光度。结论：对于白内障合并晶状体脱位范围〉2个象限的患者,Ⅰ期行白内障囊内摘除术＋前部玻璃体切割术,3mo后矫正视力〉0.3者,Ⅱ期行小切口两点固定人工晶状体悬吊术能有效确切地提高视力,稳定眼压,术后并发症少,是较为安全可靠的治疗方式。

简介：目的探讨电话回访、微信等方式对闭角型青光眼患者出院后进行延伸护理服务,以提高患者遵医行为和改善护患关系的影响。方法将160例闭角型青光眼患者随机分为对照组和观察组各80例,对观察组患者于出院后第一周开始电话回访,以后分别于两周、一月、三月、六月、一年回访。对照组采用常规方法。一年后对2组患者遵医行为和再入院人数及满意度进行评价。结果观察组患者在随访期间遵医行为人数及满意度调查,明显好于对照组,再入院人数明显少于对照组（P〈0.01）。结论延伸护理服务有利于患者掌握闭角型青光眼相关的健康教育知识,增强患者遵医行为,调动患者的主观能动性,对延缓病情进展、预防并发症、减少再入院次数、减轻经济负担、提高生活质量起到了促进作用。

简介：AIM:Tomeasurecentralcornealthickness(CCT)andpre-cornealtearfilmthicknessusingtheGalileidualScheimpfluganalyzer(GSA)inNewZealandWhiterabbits.METHODS:TennormalNewZealandWhiterabbits(20eyes)wereincludedinthisstudy.Withtheassistanceof0.1%fluorescein,thepre-cornealtearfilmcanbewellvisualized.BotheyesofeachrabbitwerescannedoncewiththeGSApre-andpost-instillationof1μL0.1%fluorescein.ThedifferencebetweenthetwomeasurementsofCCT(4-mmdiameter)wasrecordedasthepachymetricvaluesofthecentraltearfilm.RESULTS:TheCCTofpre-andpost-instillationwas388.8±9.5μmand407.0±10.5μm,respectively.Afterapairedt-testanalysis,thecentralpre-cornealtearfilmthicknessof4mmdiameterwas18.2±5.31μmwitha95%confidenceintervalof(15.7,20.6)μm(P<0.001).CONCLUSION:GSAcanbeusedtomeasureCCTandanalyzecentraltearfilmthicknessofrabbitswiththehelpoffluorescein.