简介：屈光参差是常见的屈光不正类型之一,国内外学者研究较多。但是,对于生理性屈光参差就鲜有人研究。生理性屈光参差会引起一眼或双眼的反应性调节;双眼的反复的反应性调节会导致反应性调节拮抗。反应性调节拮抗导致睫状肌和眼外肌的紧张甚至痉挛。生理性屈光参差是近视形成的很重要的因素。

简介：目的：探讨分析超声乳化手术前作视觉电生理检查对白内障预后的临床价值。方法：选取2009-01/2010-10在我院行白内障超声乳化手术治疗的白内障患者,针对直接和间接眼底镜下眼底窥不清253例,术前作视觉电生理检查了解视网膜和视神经情况以判断预后。结果：该253例患者中有47例经视觉电生理检查提示预后较差,其中接受白内障手术37例,有35例术后视功能恢复也相应较差（术后视力提高≤2行）,2例术后视功能恢复情况相对较好（术后视力提高〉2行）,另10例放弃手术;206例经视觉电生理检查提示预后较好,其中201例接受白内障手术,有199例术后视功能恢复也相应较好（术后视力提高〉2行）,2例术后视功能恢复情况相对较差（术后视力提高≤2行）,5例因有全身其他疾病不能手术。结论：白内障术前作视觉电生理检查了解视网膜及视神经情况,对于判断手术预后有良好的可预测性。

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简介：目的：探讨硅油和重硅油两种眼内填充物对兔眼视网膜电生理的中长期影响。方法：选用标准家兔28只，右眼为术眼，随机分成3组，A组12只，B组12只，C组4只。A组：玻璃体切割联合玻璃体腔填充硅油组；B组：玻璃体切割联合玻璃体腔填充重硅油组；C组：玻璃体切割联合玻璃体腔填充平衡盐溶液组。对实验动物术眼术前与术后不同时间段测得的视网膜后极部厚度、眼压及视网膜电图b波振幅值进行统计分析。结果：实验A、B组及对照C组术前及术后不同时间点测得的术眼眼压经过两两比较，无统计学差异（P〉0.05）；A、B、C组经两两比较，在术后第24wk时经OCT测得的术眼视网膜后极部厚度值均有统计学差异（P〈0.05）；在术后第24wk时术眼ERG的b波振幅均值有显著统计学差异（P〈0.01）。结论：硅油或者重硅油在作为玻璃体腔内填充物后，对兔眼术后眼压中长期内的影响无明显差别；重硅油在填充后对兔眼视网膜视觉信息传导功能的负面影响，导致视网膜变薄的程度要明显大于普通硅油。

简介：我很荣幸应邀为国际眼科理事会前任主席Prof．G．0．H．Naumann主编《AppliedPathologyforOphthal。micMicrosurgeons》（眼显微外科医生应用病理学）写书评。这部专著是Prof．G．0．H．Naumann等多位国际顸尖专家的最新杰作。Prof．G．0．H．Naumann在眼科病理学和显微外科方面造诣颇深、创见良多并卓有建树。

简介：目的：分析眼部黑色素瘤临床和病理学特点,以利于早期正确诊断和治疗。方法：回顾性系列病例研究。收集我院2001-08/2011-08门诊及住院眼部黑色素瘤24例,复习患者的临床和病理资料,所有病例采用常规石蜡切片、HE染色,部分病例常规诊断困难的加做S-100蛋白和HMB-45免疫组织化学染色。Excel建立数据库,应用SPSS17.0软件进行统计学分析。结果：患者24例均为单眼发病,男13例,女11例;左眼14例,右眼10例;3例眼睑恶性黑色素瘤,6例原发性结膜黑色素瘤;15例葡萄膜黑色素瘤。结论：黑色素瘤组织病理学变化多样,多数病例常规病理确诊,免疫组织化学对黑色素瘤诊断和鉴别诊断有重要价值。

简介：<正>DirSir,IamdoctorGuo-YuanYang,fromtheDepartmentofOphthalmologyofWestChinaHospitalofSichuanUniversityinChengdu,SichuanProvince,China.Iwritetopresentacasereportofposteriorlentiglobuswithcataract.

简介：AIM:Todeterminethehistopathologicalchangesofrifampicinappliedintravitreallyonretinalganglioncellsbymeansofstereologicalandhistopathologicalmethods.METHODS:Forthisstudytwenty-fourNewZealandadultrabbitsweredividedintofourgroups(n=6foreachgroup).50μg/0.1mL(group1),100μg/0.1mL(group2),150μg/0.1mL(group3)and200μg/0.1mL(group4),rifampicinwereinjectedintothevitreousoftherighteyesofanimals,theirlefteyeswereusedascontrol(group5).Afterthe28thdayofapplication,animalswereanesthetisedwithxylazine(8mg/kg,IM)andthentheireyeswereenucleatedimmediately.Patternsweretakenawayandeyeswerepreparedforbothstereologicalandelectromicroscopicobservation.RESULTS:Dependingonthehighdoseofrifampicin,somehistopathologicalchangessuchascytoplasmicdilatationanddamagedmembranewereobservedontheelectromicroscopiclevel.Usingquantitativeexamination,whichwasdoneatthelightmicroscopiclevel,itwasshownthatthenumberofneuronsdecreasedlinearlyasrifampicindoseincreasedwhencomparedwiththecontrolgroup.CONCLUSION:Basedonthesefindings,low-doserifampicin(50μg/0.1mL)maybeusefulfortreatmentoftheoculardiseases.

简介：AIM:ToanalyzecasesofobstructionofthenasolacrimalductwhichcreatesafertileenvironmentforsecondarybacterialInfectionandcanresultindacryocystitis,whichisaconstantthreattocorneaandorbitalsofttissueandapotentialsourceofendophthalmitisfollowingintraocularsurgery.Themajorityofobstructionsofthelacrimalexcretoryoutflowsystemareacquiredonesoccurringinadulthoodandinvolvingthedistalpartsofthesystem.Acquiredobstructionmaybeprimary/idiopathicorsecondarytoawidevarietyofinfectious,inflammatory,traumatic,mechanical,toxicorneoplasticcausesmimickingidiopathicinflammation.Thesecasesaretreatedbydacryocystorhinostomy(DCR).METHODS:Thepresentstudywasconductedtodeterminethehistopathologic,immunohistochemicalandcurrentmicrobiologiccharacteristicsoflacrimalsacspecimensinpatientsundergoingexternaldacryocystorhinostomy.RESULTS:Non-specificlacrimalsacpathologywaspresentinall33casesand81.8%ofthecasesshowedmoderatechronicinflammationwithachronicinflammatoryscore(CIS)rangingbetween4and6,whereas12.12%showedsevereinflammatorychangeswithaCISof7.Milddegreeofinflammationwasseenin6.06%withaCISof3.Thetotalprevalenceofgrampositive,gram-negative,andculture-negativesampleswere59.4%,37.5%,and3%respectively.CONCLUSION:Non-specificchronicinflammationwithfibrosisisindeedthemostcommonlyreportedhistopathologicalfindinginlacrimalsacwallbiopsyspecimens.

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