简介:目的:探索一种临床实用的前房深度相对定量测量法,初步确定老年人前房深度的正常参考值。方法:裂隙灯光源外转45°,受检眼直视裂隙光,在6点时钟方向测量六个点的前房深度(ABCDEF),以角膜缘处的角膜厚度(CT值)为1计。A:角巩膜缘黑白交界处;B:A点上移1CT;C:B点上移1CT;D:虹膜最高点;E:瞳孔缘;F:晶状体前极。测量了50~75岁的正常老年人,229例229眼,采用双盲法对22例44眼进行了11次重复性检测。结果:女性组ABCDEF点的前房深度均值分别为0.38,0.58,0.89,2.10,2.65和3.26CT;男性组分别为0.71,1.02,1.43,2.37,2.90,3.41CT。女性组每个点的深度均比男性浅(P〈0.05),越近周边部越显著。结论:前房深度六点相对定量测量法可重复性好,实用性强。
简介:目的调查报告安徽省六安市眼外伤病人的流行病学状况及治疗效果.方法对280例(289眼)眼外伤住院病人进行回顾性分析,分析眼外伤病人流行病学状况、治疗效果,有针对性的做好防治工作.结果目前,六安市眼外伤病人仍以穿通伤为主,约占60%,并逐年增加,年龄分布以儿童及青少年为主.职业以农民、儿童、学生为主.治疗效果较以往明显提高,其中暴力伤的治疗效果差,最终视力预后与是否伴有黄斑部损害及视网膜脱离有关,与入院时视力无关.结论B超、CT、MRI等辅助检查应用,显微手术、玻璃体手术,及时的药物治疗是决定最终治疗效果的关键.安全教育、医疗保险制度、防护镜使用是减少眼外伤的发病率并提高眼外伤最终治疗效果的主要因素.
简介:目的探讨前列腺素类药结合玻璃体腔注射雷珠单抗治疗新生血管性青光眼的效果。方法伴发高眼压的新生血管性青光眼患者160例根据随机数字表法分为治疗组80例与对照组80例,两组都给予复合式小梁切除术,对照组选择拉坦前列腺素辅助治疗,治疗组选择拉坦前列腺素联合玻璃体腔注射雷珠单抗辅助治疗。结果治疗后治疗组与对照组的治疗有效率分别为97.5%和88.8%,治疗组的治疗有效率明显高于对照组(P〈0.05)。两组治疗后最佳矫正视力都明显提高,而眼压都明显下降,与治疗前对比差异明显(P〈0.05);同时治疗后治疗组的最佳矫正视力与眼压也都明显好于对照组(P〈0.05)。治疗期间治疗组的眼结膜充血、前房炎症反应、角膜水肿、一过性视觉模糊等并发症发生率都明显低于对照组(P〈0.05)。所有患者治疗后随访调查6个月,治疗组的治疗后3个月与6个月的复发率分别为1.3%和5.0%,而对照组分别为7.5%和13.8%,治疗组治疗后3个月与6个月的复发率明显少于对照组(P〈0.05)。结论前列腺素类药结合玻璃体腔注射雷珠单抗治疗新生血管性青光眼能促进眼压的降低,改善视力水平,安全性好,降低复发,从而有利于近远期疗效的提高。
简介:目的:探讨裂隙灯眼前段处理系统在眼科临床工作中的各种实际应用状况及操作技巧。方法:应用配置佳能PowerShotA720IS型数码照相机(1200万像素)SLM型裂隙灯显微镜检查眼部病变情况,并在裂隙灯下根据不同的病变位置,在不同色彩、角度下进行照相(放大倍率×10;×16;×20)。结果:采集不同种类疾病具有代表性照片:眼睑及结膜肿物、结膜裂伤、角膜炎、角膜异物、翼状胬肉、前房积血、前房角异物等如图示。结论:裂隙灯眼前段处理系统的应用为临床医疗文献提供直接定性依据,给患者了解自身病情带来便利,照片直观、经济,在眼科领域的临床应用具有广阔的前景。
简介:目的评价海德堡视网膜断层扫描仪黄斑区视网膜分析系统(macularedemamodule,MEM)的三个技术参数,了解其变异性及可重复性来判断其临床应用价值。方法对78例(78只眼)正常健康志愿者应用海德堡视网膜断层扫描仪黄斑区视网膜分析系统进行检查。分析扫描深度值(Z)、视网膜信号宽度值(W)、水肿指数值(E)三参数的均值及变异系数,并分析黄斑反射图、地形图、信号宽度图、水肿指数图的图像特征。结果黄斑中心0.5mm范围内视网膜扫描深度均值(Z)为1.4430848,变异系数55.6%。W值为795.27±193.53,变异系数17.6%。E值为1.13±0.35,变异系数27.8%。不同个体三参数差异有高度显著性(P<0.01),个体变异较大。不同时间段三参数测量差异无显著性(P>0.05)。结论MEM可对黄斑区视网膜厚度进行量化分析,个体变异较大,但重复性好,HRT-Ⅱ检查适合黄斑疾病的个体随诊观察。
简介:目的探讨数字化多媒体系统矫治训练对大龄儿童弱视的治疗效果。方法选取2013年1月至2016年1月我院门诊收治的大龄弱视患儿86例(128眼),作为研究对象。根据患儿治疗方案的差异将其分为观察组与对照组,对照组45例患儿接受常规综合治疗措施,观察组41例患儿接受数字化多媒体系统治疗,比较两组患儿治疗后双眼视功能变化及疗效。结果观察组患儿治疗后总有效率明显高于对照组,并且观察组患者立体视改善率明显高于对照组,P〈0.05,差异具有统计学意义。结论对大龄弱视患儿采取数字化多媒体系统治疗可有效改善患儿弱视症状,提高患儿双眼视功能,缩短患儿视功能障碍治疗时间,具有临床应用及推广价值。
简介:AIM:Anaerobicbacteriacancauseocularinfections.WetestedtheOxyPlateTMAnaerobicSystem(OXY)toisolatepertinentanaerobicbacteriathatcancauseoculardisease.METHODS:OXY,whichdoesnotrequiredirectanaerobicconditions(i.e.bags,jars),wascomparedtoconventionalisolationofincubatingculturemediainanaerobicbags.Standardcoloniescountswereperformedonanaerobicocularbacterialisolatesunderaerobicandanaerobicconditions(anaerobicbags)usingagarmedia:1)OXY(aerobiconly),2)5%sheepblood(SB),3)Chocolate,and4)Schaedler.Thebacteriatestedwerede-identifiedocularisolatesculturedfromendophthalmitisanddacryocystitisthatinclude10Propionibacteriumacnesand3Actinomycesspecies.Thecolonycountsforeachbacteriaisolate,oneachculturingcondition,wererankedfromlargesttosmallest,andnon-parametricallycomparedtodeterminethebestculturingcondition.RESULTS:Allanaerobicconditionswerepositiveforalloftheanaerobicisolates.SBandSchaedler’sagarunderaerobicconditionsdidnotsupportthegrowthofanaerobicbacteria.SparsegrowthwasnotedonchocolateagarwithPropionibacteriumacnes.Asananaerobicsystem,SBinananaerobicbagisolatedhighercolonycountsthanOXY(P=0.0028)andchocolateagar(P=0.0028).CONCLUSION:AlthoughOXYdidnottesttobemoreefficientthanotheranaerobicsystems,itappearstobeareasonablealternativeforisolatinganaerobicbacteriafromocularsites.Theuseofanagarmediuminaspeciallydesignedplate,withouttherequirementofananaerobicbag,renderedOXYasanadvantageoverotheranaerobicsystems.
简介:AIM:Tomeasurecentralcornealthickness(CCT)andpre-cornealtearfilmthicknessusingtheGalileidualScheimpfluganalyzer(GSA)inNewZealandWhiterabbits.METHODS:TennormalNewZealandWhiterabbits(20eyes)wereincludedinthisstudy.Withtheassistanceof0.1%fluorescein,thepre-cornealtearfilmcanbewellvisualized.BotheyesofeachrabbitwerescannedoncewiththeGSApre-andpost-instillationof1μL0.1%fluorescein.ThedifferencebetweenthetwomeasurementsofCCT(4-mmdiameter)wasrecordedasthepachymetricvaluesofthecentraltearfilm.RESULTS:TheCCTofpre-andpost-instillationwas388.8±9.5μmand407.0±10.5μm,respectively.Afterapairedt-testanalysis,thecentralpre-cornealtearfilmthicknessof4mmdiameterwas18.2±5.31μmwitha95%confidenceintervalof(15.7,20.6)μm(P<0.001).CONCLUSION:GSAcanbeusedtomeasureCCTandanalyzecentraltearfilmthicknessofrabbitswiththehelpoffluorescein.
简介:AIM:Toevaluatetheaccuracyofsphericalequivalent(SE)estimatesofadouble-passsystemandtocompareitwithretinoscopy,subjectiverefractionandatablemountedautorefractor.METHODS:Non-cycloplegicrefractionwasperformedon125eyesof65healthyadults(age23.5±3.0years)fromOctober2010toJanuary2011usingretinoscopy,subjectiverefraction,autorefraction(AutokeratorefractometerTOPCONKR-8100,Japan)andadoublepasssystem(OpticalQualityAnalysisSystem,OQAS,VisiometricsS.L.,Spain).Nineconsecutivemeasurementswiththedouble-passsystemwereperformedonasubgroupof22eyestoassessrepeatability.ToevaluatethetruenessoftheOQASinstrument,theSElaboratorybiasbetweenthedoublepasssystemandtheothertechniqueswascalculated.RESULTS:TheSEmeancoefficientofrepeatabilityobtainedwas0.22D.SignificantcorrelationscouldbeestablishedbetweentheOQASandtheSEobtainedwithretinoscopy(r=0.956,P<0.001),subjectiverefraction(r=0.955,P<0.001)andautorefraction(r=0.957,P<0.001).ThedifferencesinSEbetweenthedouble-passsystemandtheothertechniquesweresignificant(P<0.001),butlackedclinicalrelevanceexceptforretinoscopy;Retinoscopygavemorehyperopicvaluesthanthedouble-passsystem-0.51±0.50Daswellasthesubjectiverefraction-0.23±0.50D;Moremyopicvalueswereachievedbymeansofautorefraction0.24±0.49D.CONCLUSION:Thedouble-passsystemprovidesaccurateandreliableestimatesoftheSEthatcanbeusedforclinicalstudies.Thistechniquecandeterminethecorrectfocuspositiontoassesstheocularopticalquality.However,ithasarelativelysmallmeasuringrangeincomparisonwithautorefractors(-8.00to+5.00D),andrequirespriorinformationontherefractivestateofthepatient.