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首页> 美国卫生研究院文献>The British Journal of Ophthalmology >Visual acuity measurements in a national sample of British elderly people
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Visual acuity measurements in a national sample of British elderly people

机译：全国英国老年人样本的视敏度测量

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BACKGROUND—Despite the fact that visual function has an important role in the quality of life in later years, very few studies have measured visual acuity in population based nationwide samples of British elderly people. Such measurements were carried out in the context of the national diet and nutrition survey of people aged 65 years or over (NDNS).
METHODS—NDNS participants, who were living in 80 different randomly selected postcode areas of mainland Britain, were visited at their home by a nurse who measured visual acuity at 3 metres, using the Glasgow acuity card (GAC) method. In addition, a brief questionnaire related to ocular health was administered.
RESULTS—Visual acuity was measured in 1362 NDNS participants who were not classified as mentally impaired. Visual impairment (using the WHO low vision criteria) was measured in 195 (14.3%) subjects. Prevalence of visual impairment increased significantly with age (65-74 years 3.1%; 75-84 years 11.6%; 85+ years 35.5%, p<0.001 for trend). Impaired vision was more common in subjects living in a nursing home (odds ratio adjusted for age 2.59 (95% CI 2.23 to 2.96)) and in women (odds ratio adjusted for age 1.55 (95% CI 1.21 to 1.89)). 132 (9.7%) subjects had previously undergone cataract surgery and another 157 (11.5%) had been told that they currently had cataract. Vision improved 0.2 log units or more (at least one Snellen line) with the aid of a pinhole occluder in 289 subjects (21.2%).
CONCLUSION—Results of this nationwide, community based study confirm that problems with poor distance visual acuity exist in a substantial part of the elderly community, particularly in women and people living in nursing homes.
机译：背景技术尽管视功能在以后的生活质量中起着重要作用，但很少有研究在以人口为基础的全国性英国老年人样本中测量视敏度。这种测量是在对65岁或65岁以上人群（NDNS）进行的全国饮食和营养调查的背景下进行的。
方法-NDNS参与者生活在英国大陆80个随机选择的邮政编码区域中，分别为一位护士拜访了他们的家，该护士使用格拉斯哥视力卡（GAC）方法测量了3米的视力。此外，还进行了与眼睛健康有关的简短问卷调查。
结果-对1362名未归类为精神障碍的NDNS参与者进行了视敏度测量。在195名（14.3％）受试者中测量了视力障碍（使用WHO低视标准）。视力障碍的患病率随着年龄的增长而显着增加（65-74岁为3.1％； 75-84岁为11.6％； 85岁以上为35.5％，趋势p <0.001）。生活在疗养院的受试者（比值调整为2.59岁（95％CI 2.23 到2.96）的患者）和女性（视力比值调整为1.55岁（95％CI 1.21）的患者更常见视力障碍至1.89））。 132（9.7％）位受试者曾接受过白内障手术，另有157位（11.5％）被告知他们目前患有白内障。借助针孔封堵器，在289个受试者（21.2％）中，视力提高了0.2对数单位或更多（至少一条Snellen线）。
结论—这项全国性的，以社区为基础的研究结果证实，远距离视力不好的问题老年人社区的大部分地区都存在敏锐度，尤其是妇女和住在疗养院中的人。

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