Changing patterns of cataract services in North-West Nigeria: 2005–2016

Purpose This study was conducted to assess the impact of the eye care programme on cataract blindness and cataract surgical services in Sokoto, Nigeria over a 12 year period 2005-2016. Methods Data from the 2005 population based cross-sectional study of blindness in Sokoto state was re-analysed to obtain baseline estimates of the prevalence of cataract blindness and cataract surgical coverage for persons 50 years and over in Wurno health zone. A population based survey of a representative sample of persons 50 years and over in Wurno health zone was conducted in July 2016. Data on eye health workforce, infrastructure and cataract surgical services between 2005 and 2016 were analysed from relevant documents. Results In 2005 the unadjusted prevalence of bilateral cataract blindness (&lt;3/60) in people 50 years and over in Wurno health zone was 5.6% (95% CI: 3.1, 10.1). By 2016 this had fallen to 2.1% (95% CI 1.5%, 2.7%), with the age-sex adjusted prevalence being 1.9% (95% CI 1.3%, 2.5%)...研究目的 本研究旨在评估2005至2016年这12年间，尼日利亚索科托州的眼科护理项目对白内障盲症及白内障手术服务的影响。 研究方法 本研究重新分析了2005年索科托州基于人群的失明横断面研究数据，以获取沃尔诺卫生区50岁及以上人群白内障盲症患病率与白内障手术覆盖率的基线估计值。2016年7月，针对沃尔诺卫生区50岁及以上人群的代表性样本开展了基于人群的调查。同时对2005至2016年间的眼卫生人力配置、基础设施及白内障手术服务的相关文档数据进行了分析。 研究结果 2005年，沃尔诺卫生区50岁及以上人群双侧白内障盲症（视力<3/60）的未校正患病率为5.6%（95%置信区间：3.1, 10.1）。至2016年，该患病率已降至2.1%（95%置信区间：1.5%，2.7%），经年龄-性别校正后的患病率为1.9%（95%置信区间：1.3%，2.5%）……