Prevalence and causes of registered blindness in the largest federal state of Germany
Prevalence and causes of registered blindness in the largest federal state of Germany
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DOI：
10.1136/bjo.2010.194712
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发表时间：
2011-08-01
影响因子：
4.1
通讯作者：
Scholl, Hendrik P. N.
中科院分区：
文献类型：
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作者：
Finger, Robert P.;Fimmers, Rolf;Scholl, Hendrik P. N.
目的由于目前没有德国致盲率和致盲原因的估计数据，德国最大福利机构的数据库（覆盖联邦州诺思海因的950万人）方法采用调查表的方法，对5100例有代表性的盲人进行调查，并对调查结果进行统计分析。抽取20 365例病例，输入电子数据库并进行统计分析。失明和严重的视力损害被定义为视力等于或低于20/1000和20/400，分别在更好的看到eye.Results的平均年龄为72 +/- 22岁，更好的看到眼睛的平均视力为20/800。结果表明，该地区盲和重度视力障碍患病率为47.91/10万。大多数登记的视力损害是由于年龄相关性黄斑变性（AMD; 41%），其次是青光眼（15%）和糖尿病性眼病（10%）。登记在册的盲人中有65%是妇女，其中56%年龄在80岁以上。在整个队列中，登记的儿童和青少年的视力（手部运动）相对最差，视网膜营养不良患者的视力相对最好（20/200）（p
Aim As no current estimates for the prevalence and causes of blindness in Germany are available, the database of Germany's largest welfare institution (covering 9.5 million people in the federal state of Northrhine) assessing eligibility for an allowance payable to blind people was used to investigate the prevalence and the specific causes of blindness and visual impairment.Methods Data from a representative sample of 5100 cases out of 20 365 cases were extracted, entered into an electronic database and statistically analysed. Blindness and severe vision impairment were defined as visual acuity equal to or below 20/1000 and 20/400, respectively, in the better-seeing eye.Results The mean age of the overall sample was 72 +/- 22 years and the mean visual acuity of the better seeing eye was 20/800. The prevalence of blindness and severe vision impairment in Northrhine was estimated to be 47.91 per 100 000 persons. Most registered visual impairment was due to age-related macular degeneration (AMD; 41%), followed by glaucoma (15%) and diabetic eye disease (10%). Sixty-five per cent of registered blind people were women, 56% of them over the age of 80 years. Registered children and teenagers had the relative worst visual acuity (hand movement) and patients with retinal dystrophies had the relative best visual acuity (20/200) within the whole cohort (p