Prevalence of blindness and cataract surgical coverage in Narayani Zone, Nepal: a rapid assessment of avoidable blindness (RAAB) study
Prevalence of blindness and cataract surgical coverage in Narayani Zone, Nepal: a rapid assessment of avoidable blindness (RAAB) study
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DOI：
10.1136/bjophthalmol-2017-310716
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发表时间：
2018-03-01
影响因子：
4.1
通讯作者：
Yin, Vivian T.
中科院分区：
文献类型：
--
作者：
Pradhan, Sangita;Deshmukh, Avnish;Yin, Vivian T.
背景1981年尼泊尔失明调查首次确定纳拉亚尼地区为该国失明患病率最高的地区之一。随后，2006年对纳拉亚尼区的Rautahat区进行的一项调查发现，该区的失明率是全国最高的。本研究探讨了在过去十年间显著增加眼科护理服务后，该地区可避免和可治疗的失明状况的影响。方法使用可避免失明快速评估（RAAB）方法，使用mRAAB智能手机应用程序收集移动的数据。使用标准RAAB软件进行数据分析。根据2011年人口普查结果，按人口规模随机抽取100个50岁以上人群，共50人。结果在5000名调查对象中，4771人（95.4%）接受了检查。年龄校正和性别校正的双眼失明、重度视力损害（SVI）和中度视力损害（MVI）的患病率分别为1.2%（95%CI 0.9%至1.5%）、2.5%（95%CI 2.0%至-3.0%）和13.2%（95%CI 11.8%至14.5%）。尽管白内障手术覆盖率（CSC）为91.5%，但白内障仍然是失明和SVI的主要原因
Background The 1981 Nepal Blindness Survey first identified the Narayani Zone as one of the regions with the highest prevalence of blindness in the country. Subseuqently, a 2006 survey of the Rautahat District of the Narayani Zone found it to have the country's highest blindness prevalence. This study examines the impact on blind avoidable and treatable eye conditions in this region after significant increase in eye care services in the past decade.Methods The rapid assessment of avoidable blindness (RAAB) methodology was used with mobile data collection using the mRAAB smartphone app. Data analysis was done using the standard RAAB software. Based on the 2011 census, 100 clusters of 50 participants aged 50 years or older were randomly sampled proportional to population size.Results Of the 5000 participants surveyed, 4771 (95.4%) were examined. The age-adjusted and sex-adjusted prevalence of bilateral blindness, severe visual impairment (SVI) and moderate visual impairment (MVI) were 1.2% (95% CI 0.9% to 1.5%), 2.5% (95% CI 2.0% to -3.0%) and 13.2% (95% CI 11.8% to 14.5%), respectively. Cataract remains the primary cause of blindness and SVI despite cataract surgery coverage (CSC) of 91.5% for VA