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Objective To investigate the prevalence of high myopia,the prevalence and risk factors of high myopia associated with chorioretinopathy in residents aged 60 years or over in Beixinjing community, Shanghai, China. Methods A cluster stratified random sampling method was used to screen 4153 people aged 60 and over in Beixinjing community. There were 3851participants in total with a 92.73% response rate. Participants were invited to complete a questionnaire and received a comprehensive eye examination including visual acuity, refraction, slit-lamp microscopic examination, direct ophthalmoscopy and fundus photography and so on. Spherical equivalent (SE) was used to determine the degree of refractive errors. The diagnosis of high myopic chorioretinopathy was made if SE>-6.00 D and myopic ehorioretinal atrophy lesions were presented such as posterior seleral staphyloma, lacquer cracks, Fuchs spot and myopic arc spots. The degree of visual acuity impairment was determined according to the World Health Organization (WHO) classification as low vision (the best corrected visual acuity≥0. 05, but <0.3) or blindness (the best corrected visual acuity < 0. 05). Results There were 207/3851 (5.37 %) high myopia patients, in which 183/207 (88.40%) patients were associated with myopic chorioretinopathy. The prevalence of myopic chorioretinopathy decreased while age increased (X2= 19.21, P<0.01), but statistically there was no gender difference (X2= 1.83, P>0.05). Logistic regression analysis showed that there were significant differences in the prevalence of high myopia between people with different age, educational levels and family history (X2= 19.21,32. 08,960. 68; P<0.01). There were 29 cases of bilateral blindness, 96 cases of unilateral blindness, 104 cases of bilateral low vision and 562 cases of unilateral low vision in those participants. In 183 cases of high myopic chorioretinopathy patients, 111(60.65 %)cases had an obvious visual impairment, including 34.48% (10 cases) of bilateral blindness, 11.46% (11 cases) of unilateral blindness, 29.81% (31 cases)of bilateral low vision and 10.50% (59 cases) of unilateral low vision. Conclusions The prevalence of high myopia of residents aged ≥ 60 years in Beixinjing community, Shanghai, China is relatively high. Age, education level and family history are the most important factors affecting the occurrence of chorioretinopathy in high myopia patients. 相似文献
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目的 探讨晚期糖基化终末产物受体(RAGE)基因启动子区-429T>C多态性与无锡地区汉族人群糖尿病视网膜病变(DR)的相关性.方法 横断面研究.收集无锡地区120例汉族正常人及185例汉族2型糖尿病患者,包括DR患者92例,无糖尿病视网膜病变(NDR)患者93例.运用聚合酶链式反应-直接测序法检测这些对象基因型.采用x2检验及独立样本t检验比较各组基因型和基因频率及生化指标.结果 DR组与NDR组间临床特征比较显示,DR组糖尿病病程明显长于NDR组(t=2.25,P<0.05),2组间其他临床特征差异无统计学意义(P>0.05);DR组、NDR组及对照组CC基因型频率分别为3.3%、1.1%、1.7%,C等位基因频率分别为17.5%、13.4%、15.4%,DR组CC基因型频率分布显著高于NDR组及对照组,差异有统计学意义(x2=7.938、6.119,P<0.05);DR组C等位基因频率分布明显高于NDR组及对照组,差异有统计学意义(x2=7.317、5.456,P<0.05).NDR组与对照组的各基因型和等位基因频率分布比较,差异无统计学意义(x2=0.295、0.329,P>0.05).单因素logistic回归分析示,C等位基因是2型糖尿病人群DR发病的危险因素(OR=2.085,95%CI:1.216~3.574).结论 -429T>C多态性与无锡地区DR的发生有一定的相关性,且C等位基因可能是其危险因素. 相似文献
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目的探讨超声生物显微镜(UBM)在闭合性Ⅱ区眼外伤诊断中的临床意义。方法对73例(75眼)闭合性眼外伤进行UBM检查,了解相应部位虹膜、睫状体及晶状体的情况,结果进行分析和总结。结果本组75眼均有不同程度的眼前段损伤,前房积血34眼、前房角后退28眼、虹膜根部断离17眼、睫状体脱离29眼(睫状体浅脱离3眼)、晶状体脱位9眼、晶状体混浊3眼。结论 UBM可清晰显示闭合性眼外伤Ⅱ区前房积血、房角后退、虹膜根部断离、睫状体脱离、晶状体不全脱位及晶状体混浊,还可显示传统B超不能显示的睫状体浅脱离;不受屈光间质影响,对闭合性Ⅱ区眼外伤有较高的诊断价值。 相似文献
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背景 晚期糖基化终末产物特异性受体(RAGE)在2型糖尿病及其微血管并发症的发病过程中发挥重要作用.RAGE基因Gly82Ser存在多态性,但其与糖尿病视网膜病变(DR)的相关性有待进一步研究. 目的 探讨无锡地区汉族人群RAGE基因Gly82Ser多态性与DR的关系. 方法 采用横断面研究方法,于2013年3月至2014年2月在无锡纳入汉族无亲缘关系的2型糖尿病患者185例,依据2002年DR国际临床分型标准将患者分为非DR(NDR)组(93例)和DR组(92例),同期纳入健康体检对照者120名.各位受检者均行眼部检查、血液生物化学指标及血脂等实验室检查和血压、体质量指数(BMI)及空腹血糖水平检测.采集受检者外周血各3 ml,采用PCR-直接测序法检测受检者的基因型及等位基因频率并进行组间差异比较.结果 DR组患者糖尿病病程明显长于NDR组,差异有统计学意义(t=2.25,P=0.01).DR组、NDR组及健康对照组受检者RAGE基因Gly82Ser位点均存在G和A2种等位基因,其多态性分布符合Hardy-Weinberg遗传平衡定律(DR组:x2=0.51,P=0.48;NDR组:x2=1.38,P=0.24;健康对照组:x2=0.20,P=0.24).DR组、NDR组患者和健康对照组受检者AA基因型频率分别为6.5%、3.2%和2.5%,DR组患者AA基因型频率高于NDR组及健康对照组,差异均有统计学意义(x2=5.146,P=0.023;x2=5.039,P=0.037);DR组受检者A等位基因频率分布明显高于NDR组及健康对照组,差异均有统计学意义(x2=5.494,P=0.019;x2=5.235,P=0.023),而GG基因型及G等位基因频率低于NDR组和健康对照组,差异均有统计学意义(GG:x2=4.260,P=0.039x2 =4.794,P=0.027;G:x2 =5.309,P=0.021;x2=5.476,P=0.032);NDR组与健康对照组间受检者各基因型及等位基因频率的差异均无统计学意义(AA:x2=5.346,P=0.127;GG:x2 =6.981,P=0.137;A;x2=5.618,P=0.082;G:x2=4.860,P=0.088). 结论 RAGE基因Gly82Ser位点单核苷酸多态性与无锡地区2型糖尿病患者DR的发生有一定的关联,A等位基因可能是促进其发病的危险因素. 相似文献