简介：90D裂隙灯显微镜前置镜是双凸透镜（图1），检查时是利用裂隙灯较强光源，检查时所获的眼底图像立体感好，可以很清楚地显示视盘小凹，血管变异，黄斑裂孔或囊肿，视网膜裂孔，眼内占位等病变，并且由于检查过程中不接触角膜，

简介：目的：观察翼状胬肉术后角膜屈光改变及屈光状态趋于稳定的时间。方法：随机选择翼状胬肉切除患者46例54眼，术前、术后3，7，14，30，90d行角膜地形图检查，并进行统计分析。结果：翼状胬肉术后散光度较术前显著下降，术后3d与术后其他观察阶段相比，最陡径上的K值（Ks值）、散光度差异有统计学意义（P〈O．05），术后7d及以后各观察阶段之间两两比较，Ks值、最平径上的K值（Kf值）、散光度差异无统计学意义（P〉O．05）。结论：翼状胬肉术后7d角膜屈光状态基本稳定。

简介：目的：探讨白内障手术切口大小对矫正角膜原有散光、泪膜稳定性的影响。方法：收集我院2014-07/2016-07接诊的白内障患者92例92眼,随机分为对照组和观察组,各46例46眼。两组均行透明角膜隧道切口白内障乳化超声术联合折叠人工晶状体植入术,对照组为3.0mm透明角膜切口,观察组为1.8mm透明角膜切口。检测术前及术后1d,1wk,1、3mo裸眼视力、角膜散光度、基础泪液分泌（schirmerⅠtest,SⅠt）、泪膜破裂时间（break-uptime,BUT）,记录术后1d,1wk,1、3mo术源性散光（surgeryinducedastigmatism,SIA）。结果：两组术后1、3mo裸眼视力与术前比较差异有统计学意义（P〈0.05）,但两组手术前后不同时间比较差异无统计学意义（P〉0.05）;两组术后1、3mo角膜散光与术前比较无明显变化,差异有统计学意义（P〈0.05）,两组手术前后各时间点比较差异无统计学意义（P〉0.05）;两组术后1wk,1、3moSIA均不断减小,且观察组术后1d,1wk,1moSIA明显低于对照组,差异有统计学意义（P〈0.05）。两组术后1wkSⅠt、BUT少于术前,差异有统计学意义（P〈0.05）,术后1、3mo与术前比较差异无统计学意义（P〉0.05）;观察组术后1wkSⅠt、BUT高于对照组,差异有统计学意义（P〈0.05）,但术后1、3mo比较,差异无统计学意义（P〉0.05）。结论：与3.0mm标准切口相比,1.8mm透明角膜切口可减少SIA,缩短角膜稳定性恢复时间。

简介：目的：分析眼压控制稳定的晚期青光眼术后1a内在不同血压段时视野进展情况。方法：记录晚期青光眼眼压正常患者的舒张期血压及眼压值,并分别做视野检查,通过AGIS评分法判断病程的进展。结果：随访1a,各试验组平均随访眼压值比较无差异;各组视野受损进展率有差异,血压偏低组视野受损进展比较快。结论：低血压是晚期青光眼病程中的危险因素之一。晚期青光眼患者如舒张期血压过低,视野有恶化趋势。

简介：AIM:Toassesstheeffectofmyopiaonthethicknessofretinalnervefiberlayer(RNFL)measuredby3Dopticalcoherencetomography(3D-OCT)inagroupofnonglaucomatousChinesesubjects.METHODS:Twohundredandfifty-eighteyesof258healthyChinesemyopicindividualswererecruitedandfourgroupswereclassifiedaccordingtotheirsphericalequivalent(SE):lowmyopia(n=42,-0.50D),moderatemyopia(n=120,-3.0D≤SE<-6.0D),highmyopia(n=58,-6.0D≤SE<-8.0D)andextremehighmyopia(n=38,SE≥-8.0D).TheRNFLthicknessprofileincludingsuperior,nasal,inferiorandtemporalquadrantandeachofthe12clock-hourthicknessesweremeasuredby3DOCT.TheRNFLthicknessesamongfoursamplegroupswereperformedbyone-wayanalysisofvariance(onewayANOVA)andleastsignificantdifferencetest(LSDtest).CorrelationsbetweenRNFLthicknessandaxiallength/sphericalequivalentwereperformedbylinearregressionanalysis.RESULTS:TheoverallRNFLparametersshownsignificantdifferencesbetweengroupsexcluding7,9,10,11o’clockhourthickness.TheRNFLthicknessofsuperior,nasal,inferior,averageand1,2,3,4,5,6,12o’clocksectorsweredecreasedwiththeincreasingaxiallengthandhigherdegreeofmyopia.Incontrast,asaxiallengthandthedegreeofmyopiaincreased,thetemporaland8,9o’clocksectorsthicknesseswereincreased.Aconsiderableproportionofmyopiceyeswereclassifiedasoutsidethenormallimits.Sixo’clockwasthemostnotableofthetotal,which43.4%wereoutsidethenormallimits.CONCLUSION:OnthemeasurementofRNFL,thecharacteristicsofRNFLwiththechangeofthedegreeofmyopiawereobserved.Asthedegreeofmyopiaincreases,theRNFLthicknessmeasuredby3D-OCTincludingtheaverageandsuperior,nasal,inferiorsectorsdecreases.AndduetothechangeofRNFLthickness,itshouldbeconsideredwhenusingOCTtoaccessforthedamageofglaucomaespeciallypeoplewithmyopia.

简介：目的观察1,25（OH）2D3对高糖诱导牛视网膜血管内皮细胞（BRECs）中血管内皮生长因子（VEGF）的表达水平变化及对细胞凋亡水平的影响。方法将分离培养的BRECs分为三组,分别为正常糖组、高糖组和高糖处理组。正常对照组细胞培养液含5mmol/L葡萄糖,高糖组细胞培养液含30mmol/L葡萄糖,高糖处理组细胞培养液含30mmol/L葡萄糖和50nM,1,25（OH）2D3。培养48h后收集细胞蛋白。蛋白免疫印迹法检测细胞VEGF及细胞凋亡相关蛋白Bax和Bcl-2表达水平;PI/Hoechst双染色法检测细胞凋亡。结果相比于正常糖组,高糖组中VEFG水平和Bax/Bcl-2比值显著增加;而在高糖处理组中表达水平远远低于高糖组,差异均有统计学意义（P〈0.05）。高糖的细胞凋亡水平高于正常糖组,而经过1,25（OH）2D3处理后,其细胞凋亡水平则有所下降,差异均有统计学意义（P〈0.05）。结论1,25（OH）2D3可以抑制高糖诱导BRECs中VEGF表达增加及细胞凋亡。

简介：目的分析初发翼状胬肉术后患者应用于退翳明目汤治疗后的疗效。方法采用随机数字表法将我院例初103发翼状胬肉术后患者分组,对照组51例应用典必殊滴眼液治疗,观察组52例给予退翳明目汤治疗,对比两组患者治疗后临床疗效、泪膜稳定性及术后复发率。结果观察组水肿消退、角膜创面上皮修复时间及干眼症状计分均低于对照组,SchirmerBUT水平均高于对照组,复发率0%低于对照组13.89P〈0.05）-Ⅰ及%（。结论退翳明目汤能够有效提升初发翼状胬肉术后患者泪液分泌量,提升泪膜稳定性,消除干眼症状,促进创面上皮修复,降低复发率。

简介：AIM:Topresenttheoutcomeofmodifiedgridlaserphotocoagulation(GLP)indiffusediabeticmacularedema(DDME)ineyeswithoutextrafovealand/orvitreofovealtraction.METHODS:InclusioncriteriafortheretrospectivestudywereDDMEeyesofpatientswithtypeⅡdiabetesmellitusthathad≥4monthsoffollow-upfollowingGLP.Onlyoneeyeperpatientwasanalyzed.Using3-Dspectral-domainopticalcoherencetomography(3-DSDOCT),eyesthathadeitherextrafovealorvitreofovealtraction,orhadbeenpreviouslytreatedbyanintravitrealmedication(s)wereexcluded.TreatedDDMEeyesweredividedinto4groups:A)'Classic'DDMEthatinvolvedthecentralmacula;B)edemadidnotinvolvethemacularcenter;C)eyesassociatedwithcentralepiretinalmembrane(ERM);D)DDMEthatwasassociatedwithmacularcapillarydropout≥2disc-diameter(DD).RESULTS:GLPoutcomein35DDMEeyesafter4-24(mean,13.1±6.9)monthswasasfollows:GroupA)18eyeswith'classic'DDME.Followingoneor2(mean,1.2)GLPtreatments,best-correctedvisualacuity(BCVA)improvedby1-2Snellenlinesin44.4%(8/18)ofeyes,andworsenedby1linein11.1%(2/18).Centralmacularthickness(CMT)improvedby7%-49%(mean,26.6%)in77.8%(14/18)ofeyes.CausesofCMTworsening(n=4)werecommonlyexplainable,predominantly(n=3)associatedwithemergenceofextrafovealtraction,5-9monthspost-GLP.GroupB)GLP(s)inDDMEthatdidnotinvolvethemacularcenter(n=6)resultedinimprovedBCVAby1-2linesin2eyes.However,thecentralmaculabecameinvolvedintheedemaprocessaftertheGLPin3(50%)eyes,associatedwithanemergenceofextrafovealtractioninoneoftheseeyes4monthsfollowingtheGLP.GroupC)GLPfailedinall5eyesassociatedwithcentralERM.GroupD)GLPwasofpartialbenefitin2of6treatedeyeswithmacularcapillarydropout≥2DD.CONCLUSION:EyeswithDDMEthatinvolvedthemacularcenterwerefoundtoachievefavourableoutcomesafterGLP(s)duringmid-termfollow-up,unlesscomplicatedpre-GLPorpost-GLPbyvltreoretinalinterfaceabnormalities,oftenextrafovealtra