简介：目的：建立适用于本视觉电生理检查室的脑电皮肤电极记录视网膜电图正常值指标,以利于将其用于配合度低的患者。方法：选取2015-03/09来我科检查后诊断为正常者30例51眼,分别采用角膜接触镜电极和皮肤电极记录视网膜电图,对检查结果进行比较分析。结果：两种电极检查结果差异都有统计学意义（P〈0.05）。幅值上皮肤电极结果均明显低于角膜接触镜电极,其占角膜接触镜电极幅值的比值为20%~30%;但潜伏期较角膜接触镜电极稍提前,其占角膜电极记录结果的比值为95%~96%。结论：将脑电皮肤电极用于配合度低的患者可以提供有价值的视网膜功能信息。

简介：板层角膜移植术常用于治疗角膜病变,可分为前板层角膜移植术、中间板层移植术和后板层角膜移植术.其中后板层角膜移植术是近年来发展较快的手术方式.板层角膜移植的供体也有多种类型,各有其特点,人工角膜和异种角膜的应用仍需要进一步的研究.

简介：Thekeratoprosthesis(KPro;artificialcornea)isaspecialrefractivedevicetoreplacehumancorneabyusingheterogeneousformingmaterialsfortheimplantationintothedamagedeyesinordertoobtainacertainvision.Themainproblemsofartificialcorneaarethebiocompatibilityandstabilityofthetissueparticularlyinpenetratingkeratoplasty.Thecurrentstudiesoftissue-engineeredscaffoldmaterialsthroughcomprisingcompositesofnaturalandsyntheticbiopolymerstogetherhavedevelopedanewwaytoartificialcornea.Althoughawideagreementthatthelong-termstabilityofthesedeviceswouldbegreatlyimprovedbythepresenceofcorneacells,modificationofkeratoprosthesistosupportcorneacellsremainselusive.Mostofthestudiesoncornealsubstratematerialsandsurfacemodificationofcompositeshavetriedtoimprovethegrowthandbiocompatibilityofcorneacellswhichcannotonlyreducethestimulusofheterogeneousmaterials,butalsomoreimportantlycontinuousandstablecorneacellscanpreventthedestructionofcollagenase.Thenecrosisofstromaandspontaneousextrusionofthedevice,allowformaintenanceofaprecornealtearlayer,andplaytheroleofensuringagoodopticalsurfaceandresistingbacterialinfection.Asaresult,improvementincornealcellshasbeenthemainaimofseveralrecentinvestigations;someefforthasfocusedonbiomaterialforitswellbiologicalpropertiessuchaspromotingthegrowthofcorneacells.Thepurposeofthisreviewistosummarythegrowthstatusofthecornealcellsaftertheimplantationofseveralartificialcorneas.