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：目的制备左氧氟沙星热敏型耳用凝胶，并对其体外释放性能进行检测。方法制备以泊洛沙姆407为基质的左氧氟沙星热敏性耳用凝胶，根据中耳温度筛选泊洛沙姆407的最佳处方浓度，采用立式Franz扩散池模型对该制剂的体外释放性能进行研究。结果左氧氟沙星检测浓度的线性范围为3．0～10．5mg／L，在此浓度范围内吸光度（A）和浓度（c）呈良好的线性关系，即C（mg／L）=12．582A＋0．2976（r=0．9986，n=6）；平均回收率为100．09％，相对标准偏差（RSD）=0．61％（n=6）；泊洛沙姆407在处方中的最佳浓度为17％；药物释放具有一定的控释性，释放符合零级动力学特征。结论该耳用热敏型凝胶具有较好的控释性能，且制备方法简单，用药剂量易于控制。

简介：AIM:Tocomparetheeffectoftopicallyadministeredandsubconjunctivallyinjectedbevacizumabonexperimentalcornealneovascularizationinratsfortwoweeksaftertreatment.METHODS:Twenty-eightSprague-Dawleyratsweredividedintofourgroupsof7animals.Eachcornealcenterofrighteyewascauterizedwithsilver/potassiumnitratefor8s.Aftercornealburning,bevacizumab(12.5mg/mL)wastopicallyadministeredthreetimesperday(TBgroup)fortwoweeksorsubconjunctivallyinjectedondays2and4aftercauterization(0.02mL;SBgroup).Asnegativecontrols,ratsreceived0.9%salinetopicallythreetimesperday(TSgroup)orsubconjunctivallyondays2and4(0.02mL;SSgroup).Digitalphotographsofthecorneaweretaken1and2weeksaftertreatmentandanalyzedtodeterminetheareaofcorneacoveredbyneovascularizationasthepercentageofcornealneovascularization.RESULTS:Oneweekaftertreatment,thepercentageofcornealneovascularizationwassignificantlylowerintheTBandSBgroupsthanintheTSandSSgroups(allP<0.05).Twoweeksaftertreatment,thepercentageofcornealneovascularizationwassignificantlylowerintheTBgroupthanintheTSgroup(P<0.05).Inallgroups,thepercentageofneovascularizationwasdecreasingastimepassed(allP<0.05)CONCLUSION:Topicallyadministeredbevacizumabhaslongerstandinganti-angiogeniceffectthansubconjunctivallyinjectedbevacizumabincornealneovascularizationfollowingchemicalinjuryinrats.