Aims To determine the prevalence and subtypes of glaucoma in Vientiane Province. Methods We conducted a population-based study of 1264 participants aged ≥40 years of age from urban and rural areas of Vientiane Province. Data collection included Snellen visual acuity, slip lamp examination, tonometry, gonioscopy, dilated stereoscopic disc examination and perimetry. Glaucoma was categorised by clinical subtype. Results The mean age of the 1264 participants was 57.6 years; 91.9% of eyes had a gradable disc. The prevalence of glaucoma of any category in at least one eye was 1.54% (95% CI 0.66% to 3.59%). The overall prevalence of primary open-angle glaucoma, primary angle-closure glaucoma and secondary glaucoma was 0.62% (95% CI 0.19% to 1.98%), 0.55% (95% CI 0.12% to 2.54%) and 0.37% (95% CI 0.07% to 1.86%); 12 (66.7%) of participants with glaucoma were at least unilaterally blinded by WHO definition. Conclusions The prevalence of glaucoma in the Vientiane Eye Study is relatively low compared with the prevalence reported in other studies from Asian regions; however, the median age in this study was low, reflecting the age group of the population and the rapid urbanisation occurring in the Lao People’s Democratic Republic. Nevertheless, glaucoma remains a blinding disease in this population. Data are available on reasonable request via email to corresponding author.

中文翻译：

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老挝人民民主共和国的青光眼患病率：万象眼科研究

目的 确定万象省青光眼的患病率和亚型。方法 我们对来自万象省城乡地区的 1264 名年龄≥40 岁的参与者进行了一项基于人群的研究。数据收集包括 Snellen 视力、滑动灯检查、眼压测量、前房角镜检查、扩张立体视盘检查和视野检查。青光眼按临床亚型分类。结果 1264 名参与者的平均年龄为 57.6 岁；91.9% 的眼睛有可分级的视盘。至少一只眼睛中任何类别的青光眼的患病率为 1.54%（95% CI 0.66% 至 3.59%）。原发性开角型青光眼、原发性闭角型青光眼和继发性青光眼的总体患病率为 0.62%（95% CI 0.19% 至 1.98%）、0.55%（95% CI 0.12% 至 2.54%）和 0.37%（95%置信区间 0.07% 至 1.86%）；12（66。7%) 的青光眼参与者至少单方面被 WHO 定义蒙蔽。结论 与亚洲地区其他研究报告的患病率相比，万象眼科研究中青光眼的患病率相对较低；然而，本研究中的中位年龄较低，反映了老挝人民民主共和国的人口年龄组和快速城市化。然而，青光眼在这一人群中仍然是一种致盲疾病。数据可根据合理要求通过电子邮件发送给通讯作者。反映了老挝人民民主共和国的人口年龄组和快速城市化进程。然而，青光眼在这一人群中仍然是一种致盲疾病。数据可根据合理要求通过电子邮件发送给通讯作者。反映了老挝人民民主共和国的人口年龄组和快速城市化进程。然而，青光眼在这一人群中仍然是一种致盲疾病。数据可根据合理要求通过电子邮件发送给通讯作者。