Allen Foster Community Eye Health Research Centre, International Centre for Advancement of Rural Eye care; Prof. Brien Holden Eye Research Centre, L V Prasad Eye Institute, LV Prasad Marg, Road No #2, Banjarahills, Hyderabad, India.
Indian J Ophthalmol. 2012 Sep-Oct;60(5):492-7. doi: 10.4103/0301-4738.100560.
Context : Globally, limited data are available on changing trends of blindness from a single region. Aims : To report the changing trends in the prevalence of blindness, visual impairment (VI), and visual outcomes of cataract surgery in a rural district of Andhra Pradesh, India, over period of one decade. Settings and Design : Rural setting; cross-sectional study. Materials and Methods : Using a validated Rapid Assessment of Cataract Surgical Services (RACSS) method, population-based, cross-sectional survey was done in a rural district in the state of Andhra Pradesh, India. Two-stage sampling procedure was used to select participants ≥50 years of age. Further, a comparative analysis was done with participants ≥50 years from the previously concluded Andhra Pradesh Eye Disease Study (APEDS) study, who belonged to the same district. Statistical Analysis : Done using 11 th version of Stata. Results : Using RACSS, 2160/2300 (93.9%) participants were examined as compared with the APEDS dataset (n=521). Age and sex adjusted prevalence of blindness in RACSS and APEDS was 8% (95% CI, 6.9-9.1%) and 11% (95% CI, 8.3-13.7%), while that of VI was 13.6% (95% CI, 12.2-15.1%) and 40.3% (95% CI, 36.1-44.5%), respectively. Cataract was the major cause of blindness in both the studies. There was a significant reduction in blindness following cataract surgery as observed through RACSS (17.3%; 95% CI, 13.5-21.8%) compared with APEDS (34%; 95% CI, 20.9-49.3%). Conclusion : There was a significant reduction in prevalence of blindness and VI in this rural district of India over a decade.
全球范围内，有关单一地区致盲变化趋势的资料有限。目的：报告印度安得拉邦一个农村地区在十年间白内障患病率、视力损害（VI）和白内障手术结果的变化趋势。设置和设计：农村地区；横断面研究。材料和方法：使用经过验证的快速白内障手术服务评估（RACSS）方法，在印度安得拉邦的一个农村地区进行了基于人群的横断面调查。采用两阶段抽样程序选择≥50 岁的参与者。进一步，与之前完成的安得拉邦眼病研究（APEDS）研究中来自同一地区的≥50 岁的参与者进行了比较分析。统计分析：使用 Stata 第 11 版进行分析。结果：使用 RACSS 检查了 2160/2300（93.9%）名参与者，而 APEDS 数据集（n=521）则检查了 2160/2300（93.9%）名参与者。RACSS 和 APEDS 中年龄和性别调整后的失明患病率分别为 8%（95%CI，6.9-9.1%）和 11%（95%CI，8.3-13.7%），而 VI 的患病率分别为 13.6%（95%CI，12.2-15.1%）和 40.3%（95%CI，36.1-44.5%）。白内障是这两项研究中失明的主要原因。通过 RACSS（17.3%；95%CI，13.5-21.8%）观察到白内障手术后失明显著减少，而 APEDS（34%；95%CI，20.9-49.3%）则没有。结论：在过去十年中，印度这个农村地区的失明和 VI 患病率显著下降。
