简介:目的:探讨中老年人膳食碳水化合物及脂肪摄入量与年龄相关白内障(age-relatedcataract,ARC)危险性之间的关系。方法:采用以医院为基础的病例对照研究方法。病例由45~85岁的360例白内障患者组成,对照由同期入住相同医院的360例非白内障的患者组成,采取1∶1匹配。采用自行设计的调查表对研究对象进行调查,内容包括人口学特征、生活方式、以及既往史等,同时还采用一份有效的半定量化食物频率调查表(FFQ),获取研究对象膳食营养素的摄入情况。应用多因素Logistic回归分析估计碳水化合物及脂肪摄入量与ARC关联的比值比(OR)及其相应的95%可信区间(CI)。结果:调整多种潜在性混杂因素后,碳水化合物摄入量增加可使发生ARC的危险性升高,与摄入量为最低四分位数的对照相比较,摄入量为最高四分位数的病例发生ARC的OR为2.161(95%CI:1.107~5.016,P〈0.001)。同样,多不饱和脂肪酸摄入量也与ARC呈正相关,摄入量为最高四分位数的病例发生ARC危险性是最低四分位数对照的3倍(OR=2.989,95%CI:1.764~5.062,P〈0.001)。总脂肪摄入量与ARC无关(P=0.778)。结论:膳食碳水化合物及多不饱和脂肪酸摄入量增加可使发生ARC的危险性升高,合理营养、平衡膳食可能有助于预防ARC。
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:·Thisisacasepresentationofaverybizarreopenglobetraumawithanteriorsegmentforeignbody-fishinghookstuckinthecorneaandiris.Complicationsduetothiskindofeyetraumamightbeveryhazardousandwithseriousimpactonvisualfunction.Wearerepresentingourapproachandexperienceofthreestepmanagementofthiskindofeyeinjury:first-extracttheforeignbody,closeandreconstructtheeyeball,second-fightinflammation,andthird-restorethevisualfunctionbycataractsurgery.·
简介:AIM:Tocomparetheeffectoftopicallyadministeredandsubconjunctivallyinjectedbevacizumabonexperimentalcornealneovascularizationinratsfortwoweeksaftertreatment.METHODS:Twenty-eightSprague-Dawleyratsweredividedintofourgroupsof7animals.Eachcornealcenterofrighteyewascauterizedwithsilver/potassiumnitratefor8s.Aftercornealburning,bevacizumab(12.5mg/mL)wastopicallyadministeredthreetimesperday(TBgroup)fortwoweeksorsubconjunctivallyinjectedondays2and4aftercauterization(0.02mL;SBgroup).Asnegativecontrols,ratsreceived0.9%salinetopicallythreetimesperday(TSgroup)orsubconjunctivallyondays2and4(0.02mL;SSgroup).Digitalphotographsofthecorneaweretaken1and2weeksaftertreatmentandanalyzedtodeterminetheareaofcorneacoveredbyneovascularizationasthepercentageofcornealneovascularization.RESULTS:Oneweekaftertreatment,thepercentageofcornealneovascularizationwassignificantlylowerintheTBandSBgroupsthanintheTSandSSgroups(allP<0.05).Twoweeksaftertreatment,thepercentageofcornealneovascularizationwassignificantlylowerintheTBgroupthanintheTSgroup(P<0.05).Inallgroups,thepercentageofneovascularizationwasdecreasingastimepassed(allP<0.05)CONCLUSION:Topicallyadministeredbevacizumabhaslongerstandinganti-angiogeniceffectthansubconjunctivallyinjectedbevacizumabincornealneovascularizationfollowingchemicalinjuryinrats.