简介:AIM:Tostudythedistributionofocularhigher-orderaberrations(HOAs)andmesopicpupilsizeinindividualsscreenedforrefractivesurgery.·METHODS:OcularHOAsandmesopicpupilsizewerestudiedin2458eyesof1240patientswithmyopia,myopicastigmatismandcompoundmyopicastigmatismand215eyesof110patientswithhyperopia,hyperopicastigmatismandcompoundhyperopicastigmatismusingtheZywaveaberrometer(Busch&Lomb).Allpatientshadcorrectablerefractiveerrorswithoutahistoryofrefractivesurgeryorunderlyingdiseases.Root-mean-squarevaluesofHOAs,totalsphericalaberration,totalcomaandmesopicpupilsizewereanalyzed.OcularHOAsweremeasuredacrossa≥6.0mmpupil,andpupilsizemeasurementswereperformedunderthemesopiccondition.·RESULTS:ThemeanvaluesofHOAs,totalsphericalaberrationandtotalcomainthemyopicgroupwere0.369μm,±0.233,0.133±0.112μmand0.330±0.188μm,respectively.InthehyperopicgroupthemeanvaluesofHOAs,totalsphericalaberrationandtotalcomawere0.418μm±0.214,0.202±0.209μmand0.343±0.201μm,respectively.HyperopesshowedgreatertotalHOAs(P<0.01)andtotalsphericalaberration(P<0.01)comparedtomyopes.Inage-matchedanalysis,onlytheamountoftotalsphericalaberrationwashigherinthehyperopicgroup(P=0.05).Mesopicpupilsizeinthemyopicgroupwaslarger(P≤0.05).·CONCLUSION:TheresultssuggestedthatsignificantlevelsofHOAswerefoundinbothgroupswhichareimportantforplanningrefractivesurgeriesonIranians.Thereweresignificantlyhigherlevelsoftotalsphericalaberrationinhyperopescomparedtomyopes.Mesopicpupilsizewaslargerinmyopicgroup.
简介:AIM:Toexaminetheα-Galgeneexpressionanddistributioninthedifferentspecies/genusanddevelopingphaseanimalocularsurfacetissue.METHODS:α-Galbindingassaywerecarriedoutonvariousanimaleyesections.Photograph,slit-lampobservationonvariouseyeshowednormalcornealtransparence.RESULTS:Astrongα-Galexpressionininvertebratesandsomevertebratesoculartissue,butnoα-Galbindinginbirds,fishandmammal.α-Galexpressionchangeinthedevelopmentofmiceocularsurfacetissue(exceptsclera)anddisplaygenusdependencyinthedifferentmurineocularsurfacetissue.CONCLUSION:Thisstudyidentifiedspecificα-Galepitopesbindingareaintheocularsurfaceofseveralspeciesandmaysolvetheproblemthatnaiveocularsurfacemaybeusedasnaturalα-Galgeneknockoutmodel/highriskimmunologicrejectionmodelorocularsurfacescaffoldmaterial.
简介:AIM:Toinvestigatetheefficacyofnon-buckledvitrectomywithclassicalendotamponadeagentsinthetreatmentofprimaryretinaldetachment(RD)complicatedbyinferiorbreaksandproliferativevitreoretinophathy(PVR).METHODS:Aretrospective,consecutiveandcaseseriesstudyof40patientswithinferiorbreakRDandPVR≥C1wasconducted.Allpatientsunderwentastandard3-port20-gaugeparsplanavitrectomy(PPV)withgasorsiliconeoiltamponadewithoutsupplementaryscleralbuckling.Thevitreousandallproliferativemembranewerecompletelyremoved,andretinectomywasperformedwhennecessary.Themeanfollow-upwas12.5months.Theprimaryandfinalanatomicsuccessrate,visualacuityandcomplicationswererecordedandanalyzed.RESULTS:Primaryanatomicsuccessratewasachievedin35of40eyes(87.5%)andthefinalanatomicsuccessratewas100%.ThemostcommoncauseofredetachmentwasrecurrentPVR.Thebest-correctedvisualacuity(BCVA)atfinalfollow-upwasimprovedin34eyes(85%),remainedstablein1eye(2.5%),andworsenedin5eyes(12.5%).Themeanvisualacuityatfinalfollow-upwasimprovedsignificantly(P=0.000).CONCLUSION:ThisretrospectivestudyprovidesevidencethatvitrectomywithoutscleralbucklingseemedtobeaneffectivetreatmentforinferiorbreakRDwithPVR.Withcompleteremovalofvitreousandproliferativemembranesandtimingofretinectomy,theinferiorbreakswhichcomplicatedwithPVRcouldbeclosedsuccessfullywithoutadditionalscleralbuckling.
简介:目的:探讨雷珠单抗(ranibizumab)治疗特发性脉络膜新生血管(idiopathicchoroidalneovascularization,ICNV)的有效性,分析在光学相干断层扫描(opticalcoherencetomography,OCT)下不同形态表现的特发性脉络膜新生血管(Ⅰ型和Ⅱ型)的疗效差异,进一步为雷珠单抗在治疗脉络膜新生血管的有效性提供±据,指导临床治疗。方法:对我院2013-10/2014-06的31例(Ⅰ型9例,Ⅱ型22例)诊断为"ICNV冶并接受玻璃体腔注射雷珠单抗的患者资料进行回顾性分析,比较分析最佳矫正视力(best-correctedvisualacuity,BCVA)和OCT测量病灶处视网膜最大厚度的变化趋势有无不同。结果:患者31例(其中Ⅰ型9例,Ⅱ型22例)经统计学分析,在术前与术后1,3moBCVA和病灶视网膜最大厚度的比较具有统计学意义,不同ICNV类型患者治疗前后的最佳矫正视力及病灶处视网膜最大厚度的变化趋势的差异无统计学意义,说明雷珠单抗玻璃体腔注射对于治疗特发性脉络膜新生血管疗效肯定,对于Ⅰ型和Ⅱ型ICNV的临床治疗效果不具显著性差异。结论:玻璃体腔注射雷珠单抗治疗特发性脉络膜新生血管疗效肯定,对于Ⅰ型和Ⅱ型ICNV本组研究中尚未发现存在疗效差异。其安全性和远期并发症需进一步研究证实。
简介:目的探讨复杂性视网膜脱离术后疼痛与舒适护理对策。方法选取我院于2015年9月-2016年6月行复杂性视网膜脱离术的136例视网膜患者的临床资料,按照随机盲选的方式进行分组,分别为观察组和对照组,两组各有68例患者,采用视觉模拟评分法对患者术后的疼痛程度及疼痛原因进行评估,并选择恰当的护理对策。结果对照组患者术后疼痛发生率为58例,轻度、中度、重度疼痛级别分别为43例、10例、5例;观察组患者术后疼痛发生率为42例,轻度、中度、重度疼痛级别分别为16例、20例、6例,对照组患者的术后疼痛程度明显高于观察组患者,两组术后疼痛及疼痛程度对比,差异具有统计学意义(P〈0.05)。结论减轻患者术后疼痛,在使裂孔处于最高位的基础上,对体位的适当调整,能够提高患者术后舒适程度。
简介:目的:分析丝裂霉素C对青光眼小梁切除术后眼内压和眼血流的影响,探讨其有效性和安全性。方法:将103例青光眼患者随机分为两组,均给予青光眼小梁切除术,观察组在术中行丝裂霉素C抗瘢痕治疗;术后完成6-12mo随访,对比两组患者的临床眼压控制疗效、并发症发生率及视网膜中央动脉血流动力学指标。结果:观察组临床疗效优于对照组(P〈0.05);两组患者的总并发症发生率无统计学差异(P〉0.05),但并发症类型有所区别,观察组多发生低眼压和畏光症状,对照组多发生瘢痕性阻塞。治疗前,两组患者的眼压动力学指标无统计学差异(P〉0.05);治疗后1mo,观察组收缩期峰速(peaksystolicvelocity,PSV)与舒张末期血流速度(enddiastolicvelocity,EDV)明显低于对照组,阻力指数(resistanceindex,RI)与搏动指数(pulsatilityindex,PI)明显高于对照组,差异有统计学意义(P〈0.05);治疗后6mo,观察组PSV与EDV明显高于对照组,RI与PI明显低于对照组,差异有统计学意义(P〈0.05)。结论:丝裂霉素C对青光眼小梁切除术患者的术后不良影响时间较短,其长期疗效安全、可靠。
简介:·Thisisacasepresentationofaverybizarreopenglobetraumawithanteriorsegmentforeignbody-fishinghookstuckinthecorneaandiris.Complicationsduetothiskindofeyetraumamightbeveryhazardousandwithseriousimpactonvisualfunction.Wearerepresentingourapproachandexperienceofthreestepmanagementofthiskindofeyeinjury:first-extracttheforeignbody,closeandreconstructtheeyeball,second-fightinflammation,andthird-restorethevisualfunctionbycataractsurgery.·
简介:AIM:ToevaluatethecornealendothelialcelldensityandmorphologyinChinesepatientswithpseudoexfoliationsyndrome(PEX).·METHODS:Medicalrecordsof16patients(20eyes)withPEXwhopresentedtoourinstitutionbetweenJuly2008andJune2010wereretrospectivelyreviewed.Thirteeneyeshadcombinedglaucoma.Theinformationoffiveapparentlynormalfelloweyesinthesepatientswasalsorecorded.Lefteyesof20patientswithbilateralsenilecataractsbutnoothereyediseasewereincludedascontrols.Specularmicroscopywasperformedinalleyestoanalyzeforcornealendothelialcelldensityandmorphology.Celldensity,coefficientofvariationincellsize,andpercentageofhexagonalcellsincornealendotheliumwereevaluated.·RESULTS:ThemeancornealendothelialcelldensityinthePEXeyeswas2298±239cells/mm2,significantlylowerthanthatinthecataracteyes(2652±18cells/mm2,P=0.026),buttherewerenosignificantdifferencesincoefficientofvariationofcellsizeandfrequencyofhexagonalitybetweenthesetwogroups.NosignificantdifferencesinthethreeparameterswerefoundbetweentheapparentlynormalfelloweyesandthePEXeyesorthecataracteyes,orbetweenthePEXeyeswithandwithoutglaucoma.·CONCLUSION:CornealendothelialcelldensitymaydecreaseinChinesepatientswithPEX.ThedevelopmentofglaucomainPEXeyesdoesnotseemtoberelatedwiththechangeincornealendothelialcelldensityormorphology.
简介:目的观察泪道探通后氟尿嘧啶应用联合鼻泪管中逆行植入球头硅胶管术治疗慢性泪囊炎的临床疗效。方法从门诊就诊的泪道阻塞患者中,选取泪点泪小管均通畅的慢性泪囊炎患者42例(56只眼),随机分为实验组与对照组,治疗组采用先泪道探通扩张,并将氟尿嘧啶溶液浸入阻塞创面,后经鼻腔逆行植入球头硅胶管术治疗,对手术疗效进行分析。对照组则不采用氟尿嘧啶干预措施,其余治疗与对照组相同。两组患者均于术后3个月拔管。结果拔管后随访3~12个月,治疗组21例(29只眼)中有效25只眼,泪道冲洗通畅无分泌物,2只眼冲洗欠通畅无分泌物,2眼泪道冲洗仍阻塞,治愈率86.2%。对照组21例(27只眼)中有效17只眼,泪道冲洗通畅无分泌物,4只眼冲洗欠通畅无分泌物,6眼泪道冲洗仍阻2塞,治愈率63.0%。经χ检验治疗组治愈率高于对照组(P〈0.05)。结论泪道探通联合球头硅胶管逆行植入术治疗慢性泪囊炎具有操作简便、不切皮肤、不损伤组织结构等优点,临床疗效肯定。氟尿嘧啶对于预防泪道阻塞部位创面再次粘连,提高远期疗效有确切作用。
简介:目的:观察小牛血去蛋白提取物眼用凝胶对复发性翼状胬肉术后角膜切口修复的应用疗效。方法:将68例68眼行复发性翼状胬肉术后发生角膜切口水肿的患者随机分为2组,每组34例。对照组常规应用双氯芬酸钠滴眼液加抗生素滴眼液同时加用贝复舒滴眼液交替点眼,4次/d。治疗组除每日应用双氯芬酸钠滴眼液加抗生素滴眼液交替点眼外,使用小牛血去蛋白提取物眼用凝胶,4次/d,疗程1mo,于用药前和用药后3,7,14d;1mo分别对患者主觉症状、体征、角膜切口修复情况进行对比分析。结果:复发性翼状胬肉术后3,7,14d,治疗组角膜切口水肿较对照组明显消退,切口修复较快,主觉症状在短时间消退,术后1mo,两组无显著性差异。结论:小牛血去蛋白提取物眼用凝胶对复发性翼状胬肉术后角膜切口的早期修复起效时间短、舒适度好、安全性良好,对减少术后感染性角膜病的发生及术后角膜散光有良好的作用。
简介:目的探讨并总结小切口白内障囊外摘除联合人工晶状体植入术治疗晶状体溶解性青光眼的临床疗效。方法回顾分析2011年3月至2016年5月间在我科确诊并行小切口白内障囊外摘除联合人工晶状体植入术的30例30眼晶状体溶解性青光眼,观察并记录其视力、眼压及并发症等变化情况。结果30例患者手术均顺利进行,术中未出现任何并发症,术后3个月随访时视力恢复良好,有6眼视力在0.1-0.5,占20.0%,24眼视力在0.6-0.8,占80.0%,矫正视力在1.0及其以上的有6眼,占20.0%;所有患者术后随访时眼压均在正常范围;术后均无严重影响眼压及视力的并发症出现。结论小切口白内障囊外摘除联合人工晶状体植入术治疗晶状体溶解性青光眼具有良好的临床效果,值得在基层医院推广。
简介:目的:探讨白内障合并晶状体脱位范围〉2个象限的患者,Ⅰ期行白内障囊内摘除术+前部玻璃体切割术,术后3mo矫正视力〉0.3者,Ⅱ期行小切口两点固定人工晶状体悬吊术的临床疗效。方法:对2014-07/2016-12我院白内障科就诊的34例34眼白内障合并晶状体脱位范围〉2个象限的患者,Ⅰ期行白内障囊内摘除术+前部玻璃体切割术,3mo后矫正视力〉0.3者,Ⅱ期行小切口两点固定人工晶状体悬吊术,分别观察患者术后1wk,1、3mo裸眼视力、最佳矫正视力、眼压、角膜散光度、术后并发症情况。结果:随着术后恢复时间的延长,患者各期的裸眼视力和最佳矫正视力均较术前有明显提高。术后3mo最佳矫正视力0.1~〈0.3者1眼,0.3~〈0.5者8眼,0.5~〈0.7者16眼,〉0.7者9眼,达到或接近术前的最佳矫正视力。术后1wk,1、3mo眼压处于正常范围内。手术并没有明显增加角膜的散光度。结论:对于白内障合并晶状体脱位范围〉2个象限的患者,Ⅰ期行白内障囊内摘除术+前部玻璃体切割术,3mo后矫正视力〉0.3者,Ⅱ期行小切口两点固定人工晶状体悬吊术能有效确切地提高视力,稳定眼压,术后并发症少,是较为安全可靠的治疗方式。
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:目的:研究血管紧张素Ⅱ受体拮抗剂坎地沙坦对糖尿病(DM)大鼠视网膜组织VEGF和MCP-1表达的影响.方法:链脲佐菌素(STZ)制备DM大鼠动物模型36只,随机分为DM模型组和坎地沙坦治疗组,另取18只正常SD大鼠作为正常对照组,每组均随机分为4,8,12wk3个亚组.视网膜铺片联合PAS染色观察视网膜微血管形态学变化,应用SABC免疫组织化学法检测坎地沙坦对大鼠视网膜组织VEGF和MCP-1表达的影响.结果:正常对照组视网膜血管网结构清晰,走行规则;DM模型组血管迂曲阻塞,走行不规则;治疗组见血管网迂曲情况较模型组明显改善,走行较规则.在对照组和模型4wk组中大鼠视网膜组织无VEGF和MCP-1阳性表达或只呈弱阳性表达;模型8wk和12wk组两者阳性表达明显增强,且随着病程延长呈递增趋势.治疗组两者的表达则均较同时期模型组明显减弱,差异有统计学意义(P〈0.05).结论:研究血管紧张素Ⅱ受体拮抗剂坎地沙坦可降低DM大鼠视网膜VEGF和MCP-1的表达.