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。
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:Simulationcanbedefinedasmalingering,orsometimesfunctionalvisualloss(FVL).Itmanifestsaseithersimulatinganophthalmicdisease(positivesimulation),ordenialofophthalmicdisease(negativesimulation).Consciousbehaviorandcompensationorindemnityclaimsareprominentfeaturesofsimulation.Sincesomeauthorssuggestthatthisisamanifestationofunderlyingpsychopathology,evenconversionisincludedinthiscontext.Intoday’sworld,everyophthalmologistcanfacewithsimulationofophthalmicdiseaseordisorder.Incaseofsimulationsuspect,thephysician’sresponsibilityistoprovethesimulationconsideringthedisease/disorderfirst,andsimulationasanexclusion.Insimulationexaminations,thephysicianshouldbefirmandsmarttoselectappropriatetest(s)toconvincenotonlythesubject,butalsothejudgeincaseofindemnityorcompensationtrials.Almostallophthalmicsensoryandmotorfunctionsincludingvisualacuity,visualfield,colorvisionandnightvisioncanbethesubjectofsimulation.Examinermustbeskillfulinselectingthemostappropriatetest.Apartfromthoseintheliterature,weincludedallkindsofsimulationinophthalmology.Inaddition,simulationexaminationtechniques,suchas,useofOCT(opticalcoherencetomography),frequencydoublingperimetry(FDP),andmodifiedpolarizationtestswerealsoincluded.Inthisreview,wemadeathoroughliteraturesearch,andaddedourexperiencestogivethereadersup-to-dateinformationonmalingeringorsimulationinophthalmology.
简介:AIM:Toevaluatetheepidemiologic,anatomic,andclinicalfeaturesofopenglobeinjuriesinchildren.METHODS:Themedicalfilesofpatientsundertheageof16whohadbeenoperatedforanopenglobeinjuryatAkdenizUniversityHospital’sDepartmentofOphthalmologywereretrospectivelyevaluated.RESULTS:Atotalof90patientswereevaluatedinthisstudy.Amongthesepatients,26(28.9%)werefemaleand64(71.1%)weremale.Themeanageofthepatientswas7.7±4.2years.Themale/femaleratiowasobservedtoincreasewithincreasingage(P=0.006,P=7.48).Injuriesweremostlikelytooccurinspringandautumn(P=0.028).Thetimeintervalbetweentheinjuryandthesurgicalrepairwas9.36±27.4h.Forty(44.4%)oftheinjuriesoccurredinthehome,27(30%)occurredintheyard,and21(23.3%)happenedwhileplayinginthestreet.Themostcommoncausesofinjuryweresharpmetalobjects(P<0.001).Injurytothecorneaoccurredin47(52.2%)ofthepatients(P<0.001).Themostcommoncomplicationtooccurwascataractformation.Additionaloperationswerenecessaryfor37(41.1%)ofthepatients.Thefinalvisualacuitywascorrelatedwithboththeinitialvisualacuityofthewoundedeyepriortosurgeryandthelengthofthewound(P<0.001,r=0.502andP<0.001,r=-0.442,respectively).CONCLUSION:Openglobeinjuriesthataresufferedinchildhoodgenerallyoccureitherathome,intheyard,oronthestreet,withsharpmetalobjectsbeingthemostcommoncauseofinjury.Theinitialvisualacuityandthelengthofthewoundarethemostimportantdeterminantsofthefinalvisualacuity.
简介:亚洲神经眼科协会(ASNOS)于2002年在日本东京成立。由亚洲神经眼科协会每两年主办一次的亚洲神经眼科大会是一个大型国际神经眼科会议,代表了亚洲神经眼科基础研究及临床研究的最高水平。历届会议都有数百名各国神经眼科专业人士进行学术交流,对国际最近神经眼科新技术及学术前沿进行介绍及讨论。亚洲神经眼科大会提供了一个国际化平台,让世界各地的参会者对前沿的神经眼科研究课题交流想法,探讨最新进展及促进未来的合作。在亚洲神经眼科大会中一个尤其出名且重要的病例讨论版块“WalshinAsia”,选取各国出色的带病理结果的病例进行深入剖析,非常具有挑战性。