简介:·AIM:Toinvestigatechangesinimmunogenicityofcryopreservedlimbalstemcells.·METHODS:Cryopreservedlimbalstemcells,freshprimarylimbalstemcellsandblankcontrolswereinoculatedsubcutaneouslyinC57BL-6miceandthepercentageofCD25cellsinlimbalexplantswasdeterminedbyflowcytometryatday21postinoculation.Morphologicalstudieswereperformedbylightandelectronmicroscopyoflimbalexplantsections.·RESULTS:Thenumberofregionalandsystemiclymphocytesderivedfromcryopreservedlimbalstemcellswaslowerthanthatfromfreshprimarylimbalstemcells.·CONCLUSION:Lymphocytesderivedfromcryopreservedlimbalstemcellsshowedchangesinimmunogenicity,butthesignificanceisunknown.Thecryopreservationandthawingmethodsawaitfurtherstudy.·
简介:目的方法结果结论对安徽省两地人群盲和低视力及眼病的流行病学情况进行抽样调查。选择阜阳市颍州区和宣城市绩溪县,采用随机整体抽样方法,对所属居民进行眼部及其他情况的调查。两地的受检人数和受检率分别为3336人(91.40%)和3602人(92.10%),达到抽样调查要求;两地双眼盲、单眼盲、双眼低视力和单眼低视力的患病率分别为1.05%和0.69%、1.71%和1.25%、1.02%和0.97%、0.87%和0.89%;两地盲和低视力的主要原因分别为:白内障、弱视、青光眼和白内障、眼球萎缩/缺如、青光眼;两地主要眼病都为:屈光不正、白内障、翼状胬肉和沙眼;两地的白内障手术率分别为600和278。据不完全资料估计我省盲和低视力的患病率远高于全国平均水平,盲和低视力的高发人群为50岁以上老年人,女性,孤寡,文盲,低收入者,白内障仍是最主要致盲原因,屈光不正/弱视已日益成为影响人民特别是青少年视力的最主要因素,广泛宣传正确用眼方式,推广青少年正确验光配镜方法,提高相关人员验光配镜水平对于有效降低弱视致残率至关重要。
简介:AIM:Toinvestigatethepossiblerelationshipbetweentheinfluencingfactorsoccurringbeforeandduringbirthinfull-terminfantsandtheoutcomeofretinopathy.·METHODS:Totally816full-terminfantsadmittedintheneonateintensiveunitofBoaiHospitalofZhongshanbetween1May,2008and30June,2011wereincludedinthestudy.Fundusexaminationwasperformedandevaluatedindividuallyonthemattheageof48hoursafterdelivery,2weeksand1month.Somepossibleriskfactorshappeningprenatallyorduringdeliverysuchaspregnantrelatedhypertension,placentaprevia,placentalabruptionetc,aswellassomeneonatalriskfactorssuchasneonatalasphyxia,hypoxic-ischemicencephalopathy(HIE),lowbirthweightetc,wererecordedandevacuated.Thentheeffectoftheriskfactorsoffull-terminfantsonretinopathywasstudied.·RESULTS:Theincidenceofretinalhemorrhageoffull-terminfantswithprenatalpregnantrelatedhypertension(PRH)ofthemother(43.6%)wassignificantlyhigherthanthatoffull-terminfantswithout(8.0%).(P<0.001).Theincidenceofretinalhemorrhageoffull-terminfantswithneonatalasphyxiaand/orhypoxic-ischemicencephalopathy(HIE)(29.3%)wassignificantlyhigherthanthatofthosewithout(15.7%),butcorrelationwasnotfoundbetweentheseverityofretinahemorrhageandthedegreeofhypoxicdisease.Apalecolorofopticdiscwasassociatedwithalowbirthweightoffull-terminfant.Full-terminfantswithbirthweighlessthan2500ghadasignificanthigherincidenceofretinopathythanthosewithbirthweightequalormorethan2500g(P<0.001).·CONCLUSION:Themaininfluencingfactorswhichleadtoretinopathyofhighriskfull-terminfantsareprenatalfactorssuchasPRH,andsomeneonatalriskfactorssuchasasphyxia,hypoxic-ischemicencephalopathy,andlowbirthweight.
简介:AIM:Todefinetheultrasonographicstructureofnormallowereyelidanatomiccompartmentsandtheirspacialrelationshipindynamicmotion.METHODS:Highresolutionultrasound(15MHz)wasperformedonthelowereyelidsof7normalsubjects.Movementsofthelowereyelidanditscompartmentswerevisualizedwithultrasound.Inaddition,themaximalexcursionareaofthelowereyelidfatcompartmentsandretractormotionswasmeasuredbeforeandaftermotion.RESULTS:Theorbicularismusclecouldbeseenasanecholucentstructurebetweenthedermisandtheechodencefatpads.Lowereyelidfatpadseemstobedividedinto2compartmentsasrangeofmotionanddirectionofmovementofeachofthemvaries.Itseemsthatthesecompartmentshavealsodifferentbehavior.Themeasuredprofileareaofthevisiblenormallowereyelidfatpadsduringmovementofglobefromup-gazetodown-gazedecreasedby50%.Orderofmovementoflowereyelidstructuresseemstobeasfollows:afterglobemovementfistweseeretractormovement,anteriororbitalfatpad,thenskinandseptum,andfinallymovementofinferiorfatpad.CONCLUSION:Ultrasoundrepresentsanoninvasivetoolforthevisualizationoflowereyelidmorphology.Expandingitsapplicationcouldhelpusunderstandthecompartmentalchangesinphysiologicaleyelidmovement,inaginganddiseasedstudypopulations,aswellasassessoperativeoutcomes.
简介:目的探讨一种规范化的的高度近视白内障超声乳化方式,总结手术注意点。方法选取高度近视白内障患者91例(91眼)均予以超声乳化联合人工晶体植入术治疗并总结。结果所有病例的术后裸眼视力均优于术前裸眼视力。术后第1天裸眼视力≥0.2共72眼(79.12%),≥0.5共37只眼(40.66%);术后3月裸眼视力≥0.2共85只眼(93.41%),≥0.5共42只眼(46.15%)。最佳矫正视力≥0.2共89只眼(97.80%),最佳矫正视力≥0.5共72只眼(79.12%)。术前散光度平均1.10D±0.78D,术后3月散光度平均1.25D±0.72D。术后散光度与术前散光度比较,差异无显著性(t=1.166,P=0.261)。无瞳孔严重变形、视网膜脱离、囊样黄斑水肿、瞳孔夹持、青光眼以及顽固性葡萄膜炎等并发症。结论低能量,高负压,低灌注,连续环形撕囊,双手劈核技术对于高度近视白内障患者更加安全有效。
简介:AIM:Toadaptthelowvision-relatedqualityoflife(LVQOL)instrumentintoTurkishlanguageandtoassessitsvalidityandreliability.METHODS:Thestudywasconductedin387patientsattendingtheCentreofLowVisionRehabilitation,FacultyofMedicine,AnkaraUniversity.Forstatisticalanalyses,theSpearman’scorrelationcoefficient,Cronbach’salphacoefficientandConfirmatoryFactorAnalysis(CFA)wereused.RESULTS:AccordingtoresultsofCFA,theiteminthe'Adjustment'subscalebecauseofhavingthefactorloadingbelow0.40,wasexcludedfromthequestionnaire.ThereliabilityofthequestionnairewasassessedaccordingtoCronbach’salphacoefficients.Thereliabilityofthe'DistanceVision,Mobility,andLighting'subscalewas?琢=0.863;ofthe'Adjustment'subscalewas?琢=0.694;'ReadingandFineWork'was?琢=0.791,and'ActivitiesofDailyLiving'was?琢=0.770.Sotheseresultsindicatethatthequestionnaireisreliabletomeasurethevisionrelatedqualityoflifeoflow-visionpatients.Thecorrelationsbetweenthesubscaleswerealsoanalyzed,andthecorrelationbetween'Adjustment'and'ReadingandFineWork'wasfoundtobethelowest(rs=0.336,P<0.001),whereasthestrongestcorrelationwasfoundbetweenthe'ReadingandFineWork',and'ActivitiesofDailyLiving'.Additionally,the'Adjustment'dimensionshowedthestrongestcorrelationwithonly'DistanceVision,Mobility,andLighting'dimension.CONCLUSION:Afterremovingthelastitemintheseconddimension,theTurkishadaptationofalldimensionsoftheLVQOLhasbeenshowntobereliable,validandsuitableforuseinpatientswithlowvisioninTurkey.
简介:目的了解幼儿耳部疾病情况,为制定幼儿人群听力损失的防治策略提供科学依据。方法用横断面现场调查法对句容市幼儿园在园幼儿进行耳部疾病的问卷调查及耳科检查。数据采用SPSS15.0统计软件进行处理。结果共调查2.5—7岁幼儿9348人,男性4819人(51.56%)、女性4528人(48.44%)。所调查幼儿的耳部疾病患病率为4.14%,各年龄段差异有统计学意义(P〈0.05),但男性(4.19%)与女性(4.08%)幼儿耳部疾病患病率差异无统计学意义(P〉0.75)。患中耳炎242人,占耳部疾病患者的62.50%。Logistic多元回归结果显示,分泌性中耳炎、年龄、耵聍栓塞、急性中耳炎、慢性化脓性中耳炎、遗传性家族史、早产及低体重、新生儿窒息均与耳部疾病相关。结论目前幼儿人群中,耳部疾病的患病率仍较高,定期体格检查的项目中宜包括耳鼻咽喉科内容,积极制定预防幼儿耳部疾病及听力损失的策略和方案很有必要。
简介:目的分析耳鼻喉科门诊耳呜病例的临床特点。方法对2009年12月~2010年7月在本科门诊就诊的2408例患者进行耳鸣问卷调查,将获得的数据进行统计学分析。结果2408例患者中,年龄6—95岁,平均(47.02±17.05)岁。确诊的耳鸣患者共996例,其中男性388例(38.96%)、女性608例(61.04%),男女耳鸣发生率差异有统计学意义(P=0.0019)。排除4例12岁以下患者,将其余992例患者,根据耳鸣对生活影响的轻重分为4类:无影响149例(占15.02%)、轻度影响480例(占48.39%)、中度影响329例(33.16%)、重度影响34例(3.43%),对生活影响的轻重程度与就诊的关系存在显著相关性(P〈0.0001)。耳鸣持续时间与单双耳发病两者之间存在显著相关性(P〈0.0001)。随机询问44例耳呜患者,发现治疗时间〈1个月者,有效10例、无效14例;1—2个月者,有效6例;〉2个月者,有效8例、无效6例。结论耳鸣的发生率在耳鼻喉科门诊患者中所占比例极高,其中尤以女性多见。双侧耳鸣持续时间更长。随着治疗时间的延长,有效率有增加趋势。(中国眼耳鼻喉科杂志,2013,13:173—175)
简介:目的通过对上海市北新泾社区糖尿病患者眼部病变的流行病学调查,了解糖尿病患者盲与低视力的情况。方法对上海市长宁区北新泾社区糖尿病患者进行视力损伤眼病的流行病学调查,内容包括:问卷调查询问一般状况和生活习惯;全身情况的检查:血压、血糖;眼部检查:日常生活视力、小孔镜视力、裂隙灯检查、眼底镜检查、自动验光仪验光、免散瞳眼底照相机眼底照相。结果应有590人进行调查,实际调查共535人,其中盲的患病率为1.12%,低视力的患病率为9.91%。导致盲的首要病因是糖尿病视网膜病变,其次是白内障和其他视网膜病变,导致低视力首要病因是白内障,其次是屈光不正和糖尿病视网膜病变。结论北新泾地区糖尿病患者防盲工作重点是糖尿病视网膜病变、白内障以及屈光不正的防治。
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:目的调查视网膜母细胞瘤(retinoblastoma,RB)患儿家长的心理健康状况。方法采用国际通用的焦虑自评量表和抑郁自评量表对121名患儿家长进行问卷调查,以国内常模作为对照。采用SAS8.0统计软件对数据进行t检验和方差分析。结果RB患儿家长的焦虑标准分(53.80±10.42)和抑郁标准分(58.90±10.89)均高于国内常模(P均〈0.0001)。双眼RB患儿家长的焦虑标准分(58.19±10.57)和抑郁标准分(62.46±11.84)明显高于单眼RB组(焦虑和抑郁值分别为51.73±9.77,57.22±10.09,P值分别为0.0083,0.0423)。患儿所处的治疗阶段不同,家长文化程度不同,家庭经济状况不同,家长的焦虑和抑郁程度也不同。结论RB患儿家长的焦虑、抑郁水平明显高于国内正常人群,提示对RB患儿家长进行心理疏导的必要性。