简介：国际奥比斯组织（ProjectOrbis-ORBIS）是一个致力于为世界各国盲人和眼疾患者恢复光明的国际性慈善机构，它的宗旨是“使全球失明者重见光明”。

简介：【药品名称】通用名称：小牛血清去蛋白眼用凝胶。英文名称：eproteinisedCalfSerumEyeGel。【成分】本品主要成份：本品含50%的小牛血清去蛋白提取物,小牛血清去蛋白提取物主要含有多种游离氨基酸、低分子肽和寡糖。

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简介：目的：评估单剂量枸橼酸西地那非片对早期年龄相关性黄斑变性（AMD）男性患者视功能的急性效应。方法：早期年龄相关性黄斑变性男40例，年龄58～86（平均71）岁，前瞻性随机接受安慰剂或者枸橼酸西地那非片（Viagra；PfizerInc，NewYork，NY）100mg，单次口服。受试者双眼在接受药物之前及之后9h内特定的时间间期进行视力、Amsler方格表及辨色力检查。结果：与安慰剂相比，服用枸橼酸西地那非片后视功能检查均未有明显改变。视力和辨色力检查在基线水平上未见有统计意义或临床相关的改变，Amsler方格表检查未见临床相关的改变。服用枸橼酸西地那非片与短暂的轻度至中度头痛和面红有关。结论：单次口服100mg枸橼酸西地那非片，在早期年龄相关性黄斑变性男性样本人群中，耐受性良好，未对视觉产生显著急性效应。

简介：AIM:Toexaminetheexpressionofsurvivinandvascularendothelialgrowthfactor(VEGF)duringthedevelopmentofretinalneovascularization(NV)inamousemodel.·METHODS:Awell-characterizedmurinemodelofretinalNVwasusedtostudytheexpressionofsurvivinandVEGF.NVoftheretinawasinducedinmicebyexposureto75%O2frompostnataldayP7toP12,followedbyreturntoroomairfromP12toP17.ExpressionofsurvivinandVEGFproteinwasanalyzedbyImmunohistochemistry.Inaddition,mousemodelofproliferativeretinopathywasanalyzedbyretinalfluoresceinangiographyandquantificationanalysis.·RESULTS:Thenormalmicehadbothsuperfiekalanddeepvascularlayersthatextendedfromtheopticnervetotheperiphery.Inintraocularpressure(IOP)micewerecharacterizedbyrepresentatypicalpatternofpathologicalretinalNV.Therearelessorlittlenucleiofnewvesselsvascularendothelialcellbreakingthroughtheinnerretinalthaninretinopathyofprematurity(ROP)mice,largeclustersofbloodvesselswereadherenttotheinternallimitingmembrane(ILM)(0.27±0.20vs23.38±1.027,t=9.454,P<0.001).DuringtheangiogenicperiodfromP13toP17,survivinandVEGFproteinexpressionincreasedinexperimentalretinascomparedwithcontrolsamples(2.56±0.46vs3.34±0.40,t=17.43,P<0.01:2.18±0.75vs4.34±0.25,t=19.61,P<0.01).ProteinlevelsofVEGFandsurvivnhassignificantlypositivecorrelation(P<0.05,r=0.411).·CONCLUSION:CorrelationwasmadeattheproteinlevelsofsurvivinexpressioncomparedwiththatofVEGFinamurinemodelofretinalNV,whichsuggestsatemporalroleforsurvivinandVEGFinnewvesselformationinresponsetohypoxicstimulation.