简介：·Glaucomaisoneoftheleadingcausesofvisualimpairmentandblindnessworldwide.Ofknownriskfactorsforglaucoma,anincreasedinintraocularpressureismosthighlycorrelatedwithglaucomatousdamage.Irrespectiveofthecause,apoptosisoftheretinalganglioncellsistheeventualoutcome.Itiswidelyacceptedthatglaucomaisaneurodegenerativediseasethatisstronglycorrelatedwithcentralnervoussystemdisorders,suchasAlzheimer’sdisease.Thesetwodisordersalsosharesomesimilaritiesinpathogenicmechanisms.Recentstudiessuggestthatthetransientreceptorpotentialcanonical6channelcouldworktogetherwithbrain-derivedneurotrophicfactortopromoteneuronsurvivalinbrainandretina.Inthisstudy,weproposethattransientreceptorpotentialcanonical6maycontributetothepathogenesisofhumanglaucomaandbecomeapotentialtherapeutictarget.

简介：AIM:Toevaluatetheefficacyandsafetyofcornealcollagencrosslinking(CXL)topreventtheprogressionofpost-laserinsitukeratomileusis(LASIK)cornealectasia.·METHODS:Inaprospective,nonrandomized,single-centrestudy,CXLwasperformedin20eyesof11patientswhohadLASIKformyopicastigmatismandsubsequentlydevelopedkeratectasia.Theprocedureincludedinstillationof0.1%riboflavin-20%dextranesolution30minutesbeforeUVAirradiationandevery5minutesforanadditional30minutesduringirradiation.Theeyeswereevaluatedpreoperativelyandat1-,3-,6-,and12-monthintervals.Thecompleteophthalmologicexaminationcompriseduncorrectedvisualacuity,bestspectacle-correctedvisualacuity,endothelialcellcount,ultrasoundpachymetry,cornealtopography,andinvivoconfocalmicroscopy.·RESULTS:CXLappearedtostabiliseorpartiallyreversetheprogressionofpost-LASIKcornealectasiawithoutapparentcomplicationinourcohort.UCVAandBCVAimprovementswerestatisticallysignificant(P<0.05)beyond12monthsaftersurgery(improvementof0.07and0.13logMARat1year,respectively).Meanbaselineflattestmeridiankeratometryandmeansteepestmeridiankeratometryreduction(improvementof2.00and1.50diopters(D),respectively)werestatisticallysignificant(P<0.05)at12monthspostoperatively.At1yearafterCXL,meanendothelialcellcountdidnotdeteriorate.Meanthinnestcorneapachymetryincreasedsignificantly.·CONCLUSION:Theresultsofthestudyshowedalong-termstabilityofpost-LASIKcornealectasiaaftercrosslinkingwithoutrelevantsideeffects.Itseemstobeasafeandpromisingproceduretostoptheprogressionofpost-LASIKkeratectasia,therebyavoidingordelayingkeratoplasty.

简介：Choroidalneovascularization(CNV)isanuncommoncomplicationassociatedwithamacularhole.Inthiscasereportofararecondition,wepresentapathologicmyopiapatientwithaco-existentmacularholeandchoroidalneovascularmembrane.ThepatientwastreatedwithphotodynamictherapyforCNV,andthenvitreoussurgeryfortheretinaldetachmentandmacularhole.Attheendof4yearsfollow-up,hervisualacuitywasimprovedto0.1whilethemacularholeremainedopen.OpticalcoherencetomographyisausefulinspectionmethodofthediagnosisofCNVandmacularhole.

简介：AIM:Tocomparethetrabecularmeshwork(TM)andirisapoptosisoftreatedanduntreatedprimaryopenangleglaucoma(POAG)patients.METHODS:Eighttreatment-naive,newlydiagnosed(group1)and11medlcaiytreated(group2)patientswithPOAGwereincludedinthestudy.Eachpatientunderwentalimbus-basedtrabeculectomy.TheTMandperipheralirisspecimensweredissectedoutandweresnap-frozeninliquidnitrogenandstoredat-80tuntiltheywereassayed.ApoptosisineachgroupwasassesedbyTUNELmethod.RESULTS:Themeanpatientagewas60.6±5.8years(53-68years)vs58.9±8.9years(47-70years)ingroup1andgroup2(P=0.859).Themeantreatmenttimeingroup2was22.2±7.3months(12-34months).ApoptoticindexesinTMandirisweresignificantlyhigherinPOAGpatientsusingmedication(group2)comparedtotreatment-naivePOAGpatients(group1)(P=0.004,0.015;respectively).CONCLUSION:LongtermadministrationoftopicalantiglaucomamedicationscausesadditionaltoxiceffectsonTM.

简介：AIM:Toinvestigatetheantifibroticeffectofthefreeze-driedbilayeredfibrin-bindingamnioticmembraneasadrugdeliverysystemonglaucomasurgeryinrabbitmodel.Theaimofthisstudywastoprepareanovellocaldeliverysystemforthesustainedandcontrollablereleaseof5-Fu.METHODS:Twenty-fourJapanesewhiterabbitswererandomizedintothreegroups:theexperimentalgroup(oculartrabeculectomyincombinationwith5-Fuloadedfreeze-driedbilayeredfibrin-bindingamnioticmembranetransplantation),thecontrolgroup(oculartrabeculectomyincombinationwith5-Fu)andtheblankgroup(singletrabeculectomy).HEstaining,massionstainingandimmunohistochemistryforα-SMAwereperformedondays7,14,21and30followingsurgery.Theconcentrationof5-Fuinrabbitaqueoushumorwasexaminedbyhighperformanceliquidchromatography(HPLC)3daysafterthesurgery.RESULTS:Statisticaldifferenceswerenotedinintraocularpressureamonggroupsonday7,14,21and30followingsurgery.Histologyfurtherdemonstratedthattrabeculectomyincombinationwithfreeze-driedbilayeredfibrin-bindingamnioticmembraneyieldedwellwoundhealingandnoscarformationandwasbeneficialforlongtermeffect.CONCLUSION:HPLCshowedagoodslow-releaseeffectwithfreeze-driedbilayeredfibrin-bindingamnioticmembrane.

简介：三、盲和低视力的原因阜阳市颖州区盲和低视力的原因中，白内障仍高居首位，占59．06％，其次为弱视，7．09％，第三位为青光眼，5．12％。（见表5）

简介：目的方法结果结论对安徽省两地人群盲和低视力及眼病的流行病学情况进行抽样调查。选择阜阳市颍州区和宣城市绩溪县,采用随机整体抽样方法,对所属居民进行眼部及其他情况的调查。两地的受检人数和受检率分别为3336人（91.40%）和3602人（92.10%）,达到抽样调查要求;两地双眼盲、单眼盲、双眼低视力和单眼低视力的患病率分别为1.05%和0.69%、1.71%和1.25%、1.02%和0.97%、0.87%和0.89%;两地盲和低视力的主要原因分别为：白内障、弱视、青光眼和白内障、眼球萎缩/缺如、青光眼;两地主要眼病都为：屈光不正、白内障、翼状胬肉和沙眼;两地的白内障手术率分别为600和278。据不完全资料估计我省盲和低视力的患病率远高于全国平均水平,盲和低视力的高发人群为50岁以上老年人,女性,孤寡,文盲,低收入者,白内障仍是最主要致盲原因,屈光不正/弱视已日益成为影响人民特别是青少年视力的最主要因素,广泛宣传正确用眼方式,推广青少年正确验光配镜方法,提高相关人员验光配镜水平对于有效降低弱视致残率至关重要。

简介：目的：研究αB-晶体蛋白对大鼠急性高眼压后视网膜组织中αB-晶体蛋白含量,视网膜神经节细胞（retinalganglioncells,RGCs）中生长相关蛋白-43（growthassociatedprotein-43,GAP-43）表达和全视野视网膜电流图（full-fieldERG,F-ERG）的b波振幅差异,探讨αB-晶体蛋白对急性高眼压后RGCs轴突再生的影响。方法：采用随机分组设计的实验研究。本实验选择120只健康、无眼疾SD大鼠,随机分为以下4组：αB晶体蛋白组（αB）30只,生理盐水组（S）30只,假手术组（P）30只,急性高眼压组（H）30只,均以右眼为实验眼,分别于术后7d和14d各取5只术眼的视网膜,行Western-blot法,观察急性高眼压后视网膜中αB-晶体蛋白的表达;术后7,14,21d各取5只术眼的视网膜,行免疫组织化学法,观察急性高眼压后RGCs的GAP-43表达;术前和术后1mo时应用全视野ERG的b波振幅变化测定视网膜功能。组间数据比较采用单因素方差分析（One-wayANOVA）,组间两两比较采用SNK-q检验。结果：αB组视网膜中αB-晶体蛋白的表达于术后7d较高,14d时表达减弱（P=0.000）,但同一时间点明显高于其他三组（P=0.006,P=0.024,P=0.007;P=0.006,P=0.008,P=0.010）;αB组RGCs的GAP-43表达于术后7d达高峰,14d时表达减弱,21d时仍有少量表达（P=0.000）,但各时间点明显高于其他三组（P=0.001,P=0.002,P=0.001;P=0.015,P=0.002,P=0.006;P=0.005,P=0.003,P=0.005）;ERG-b波振幅于术后1mo较低（P=0.014,P=0.004,P=0.003,P=0.006）,其中术前各组ERG-b波振幅无明显差异（P=0.993）,术后1mo时αB组ERG-b波振幅明显高于其他三组（P=0.000,P=0.004,P=0.002）。结论：外源性αB-晶体蛋白能够提高视网膜αB-晶体蛋白的表达;αB-晶体蛋白通过促进RGCs中GAP-43的表达,从而促进RGCs的轴突再生;αB-晶体蛋白可促进视网膜功能的恢复,对大鼠视网膜无毒性作用。

简介：<正>DearSir,IamDr.Zhong-ShanChenfromtheDepartmentofOphthalmology,WuhanGeneralHospitalofGuangzhouMilitaryCommand,HubeiProvince,China.Iwritetopresenttwocaseswithserpiginouschoroiditis(SC)whichisarare,usuallybilateral,chronic,progressiveinflammationofthechoroid,choriocapillarisandretinalpigmentepithelium.InthispaperwepresentedthedifferentoutcomesofSCpatientswithorwithoutsystemicandoculartreatmentsafterlong-termfollow-up.

简介：AIM:Totestthehypothesisthatamblyopicneuroretinamayhaveanalteredthicknesswhencomparedtothenormal.·METHODS:Twenty-fiveamblyopic,youngpatientsbetweentheagesof7and11yearsoldwerestudied.Theinterestedneuroretinaareasaredefinedinto10sub-regionsaccordingtosuperior-inferior,nasal-temoral,andperi-paraaxis,whichcrossthefovelastructure.Thethicknessesoften,definedmacularregionswereseparatelymeasuredbyopticalcoherencetomography(OCT)andanalyzedbyt-test.·RESULTS:Theaveragethicknessofneuroretinaintheexactfoveolaoftheamblyopiceyesislargerthanthatofnormaleyes(P<0.05),buttheothernineregionshavenosignificantdifference.Interestingly,inboththenormalandamblyopiceyes,thetemporalarealooksthinnerthanotherquadrants(P<0.05).·CONCLUSION:Thicknessalterationmaybeassociatedwithamblyopicdisordersinyoungpatients.Studyingalargervolumeofsubjectsofsimilarageisrequiredtoconfirmthisobservation.

简介：AIM:ToinvestigatetheinterferingeffectofY-27632,aROCK-Iselectiveinhibitor,onthesignaltransductionpathwayoftransforminggrowthfactor-β1(TGF-β1)inocularTenoncapsulefibroblasts(OTFS)invitro.METHODS:AfterOTFSfrompassages4to6invitrowereinducedbyTGF-β1andthentreatedbyY-27632,thechangesoftheOTFScellcycleswereanalyzedviaflowcytometry,andtheproteinsexpressionoftheα-smoothmuscularactin(α-SMA),connectivetissuegrowthfactor(CTGF),collagenIwerecalculatedbyWesternblot.AfterOTFStreatedbythedifferentconcentrationsofY-27632,theexpressionlevelsoftheα-SMA,CTGFandcollagenImRNAwereassayedbyRT-PCR.RESULTS:Y-27632hadnomarkedlyeffectontheOTFScellcycles.AftertreatedbyTGF-β1,OTFSinG1periodsignificantlyincreased.ThecellcyclesdistributionbybothTGF-β1andY-27632hadnoremarkabledifferencefromthatincontrolgroup.Y-27632significantlyinhibitedtheproteinsexpressionsofbothα-SMAandCTGF,whiletosomeextentinhibitedthatofcollagenI.TGF-β1significantlypromotedtheproteinsexpressionsofα-SMA,CTGFandcollagenI.AfterOTFStreatedbybothTGF-β1andY-27632,ofα-SMA,theproteinexpressionwassimilarwiththatincontrolgroup(P=0.066>0.05),buttheproteinexpressionofCTGForcollagenI,respectively,wassignificantlydifferentfromthatincontrolgroup(P=0.000<0.01).Thedifferencesofexpressionsoftheα-SMA,CTGFandcollagenImRNAin30,150,750μmol/LY-27632groupwerestatisticallysignificant,comparedwiththoseincontrolgroup,respectively(α-SMA,P=0.002,0.000,0.000;CTGF,P=0.014,0.002,0.001;collagenI,P=0.003,0.002,0.000).CONCLUSION:BlockingtheRho/ROCKsignalingpathwaybyusingofY-27632couldinhibitthecellularproliferationandtheexpressionofbothCTGFandα-SMAwhateverOTFSinducedbyTGF-β1ornot.Y-27632suppressedtheexpressionofcollagenImRNAwithoutinduction.

简介：<正>DearSir,IamProf.BeuyJoobfromSanitation1MedicalAcademicCenter,Bangkok,Thailand.Iwritetodiscusstherecentpublicationonproteomicanalysisindiabeticretinopathy(DR).Liuetal[1]concludedthattheirapproachbytwodimensionalfluorescencedifferencegelelectrophoresis(2D-DIGE)combinedwithmatrix-assistedlaser

简介：近视性屈光不正已成为眼科最常见的疾病之一,且发病率呈逐年上升趋势,其中高度近视是常见的致盲病因。一般认为近视的发生、发展是由基因遗传和环境因素共同作用的结果。目前对近视的治疗和预防的方法主要包括光学矫正、药物干预和手术干预。如何通过有效的预防方法来降低近视的患病率是当今眼科领域研究的热点和难点。

简介：糖尿病性视网膜病变（diabeticretinopathy,DR）是眼底病中的常见病,也是糖尿病的严重并发症之一。近年来随着对DR发病分子机制的不断研究,人们对DR的认识更进一步,认为聚腺苷二磷酸核糖聚合酶可能是DR发病机制中的关键启动因子,并通过多种相关分子的作用导致DR的发生。本文围绕聚腺苷二磷酸核糖聚合酶及其相关分子在DR中的表达做系统阐述。

简介：目的探讨儿童阻塞性睡眠呼吸暂停低通气综合征（obstructivesleepapneahypopneasyndrome，OSAHS）对中耳功能的影响。方法对32例（64耳）OSAHS患儿及26例（52耳）健康儿童行声导抗和纯音测听检查。结果32例0SAHS患儿中，鼓室导抗图A型16耳，B型24耳，C型18耳，Ad型4耳，AS型2耳；正常听阈12耳，轻度聋48耳，中度聋4耳。患儿组各频率气导听阈均值与对照组比较，差异有统计学意义，峰压值与对照组比较差异亦有统计学意义。结论儿童OSAHS患者异常导抗图增加，镫骨肌反射消失增多，峰压值偏向负压，出现气导听阂的提高。

简介：<正>中心性浆液性视网膜脉络膜病变(CentralserousChorioretinopathyCSC)是病因不明,以后极部视网膜神经上皮浆液性脱离为特征的疾病,

简介：目的:了解我国Leber遗传性视神经病变(Leber'shereditaryopticneuropathy,LHON)线粒体DNA(mtDNA)14484位点突变患者的发病率和临床特征.方法:对来自117个家系的119例临床确诊或疑诊LHON的患者进行mtDNA检测.对3例证实为14484位点突变的家系做深入调查并收集相关病史及临床资料,抽取15例家属的血样进行mtDNA检测.结果:存在线粒体DNA突变的62例(62/119,52.1%)中,14484位点突变仅3例(4.8%).该3例3个家系56例中,28例有眼部症状,外显率50%.发病经过和临床表现类似11778位点突变的LHON,但其中视力恢复者17例(60.7%).15例家属的血样检测再次证实为14484位点突变.结论:我国LHON患者中14484位点突变者少见,其临床表现与11778位点突变者相似,惟视力恢复率高.

简介：目的探究综合护理在糖尿病性白内障手术患者中的应用效果。方法选择2015年12月-2017年12月我院糖尿病性白内障手术患者114例,按入院顺序分为观察组（n=57）与对照组（n=57）。对照组予以常规护理,观察组于常规护理基础上采取综合护理。对比两组术后并发症发生情况、护理满意度及护理前后抑郁评分（HAMD）、焦虑评分（HAMA）。结果观察组术后并发症发生率3.51%低于对照组14.04%（P〈0.05）;护理后观察组护理总满意度94.74%高于对照组73.68%（P〈0.05）;护理前两组HAMD、HAMA评分比较,无显著差异（P〉0.05）,护理后两组HAMD、HAMA评分均降低,且观察组低于对照组（P〈0.05）。结论对糖尿病性白内障手术患者采取综合护理可显著减少术后并发症发生,减轻患者负性情绪,提高其护理满意度。

简介：目的探讨穿透性角膜移植术(PKP)后白内障行巩膜隧道小切口的疗效.方法对17例(17眼)穿透性角膜移植术后白内障患者行巩膜隧道切口,行白内障现代囊外摘除联合人工晶体植入术(ECCE+IOL)观察手术前、后视力,角膜水肿情况及内皮细胞记数.术后随访3～10个月.结果术后3个月最佳矫正视力:大于0.5者10例(10,17),0.3-0.5有5例(5,17),0.1～0.3有2例,(2/17).平均角膜内皮细胞记数1837±326个/mm2,术后3个月为1750±432个,mm2,差异无显著意义.平均内皮细胞损失率为6.2%.术中均无并发症出现,17眼术后角膜移植片均保持透明,术后1眼一个月后出现排斥反应,经抗排斥治疗后,移植片恢复透明.结论对穿透性角膜移植术后白内障患者,根据移植片情况,注意术中操作,巩膜隧道小切口ECCE+IOL术是安全、有效的治疗方法.

简介：目的探讨和评价碘酊烧灼后羊膜移植联合氟康唑对真菌性角膜溃疡的疗效。方法对门诊收的20例（22眼）确诊为真菌性角膜溃疡，施以碘酊烧灼并行羊膜移植术，术后全身及局部氟康唑应用。结果随访3-12个月。其中17眼角膜溃疡愈合，视力有所提高；2眼角膜溃疡愈合后形成角膜瘢痕，视力降低；3眼角膜溃疡未能愈合建议行角膜移植术。结论碘酊烧灼后羊膜移植联合氟康唑应用是治疗真菌性角膜溃疡疗效较好且经济方便的方法之一。