Rapid assessment of avoidable blindness in Yueqing,an economically developed area in eastern China  

作　　者：Chun-Jie Lu Wei-He Zhou Yuan-Bo Liang Yi-Ze Chen Di Song Yi-Hua Tang Juan Gu Jia Qu 

机构地区：[1]National Clinical Research Center for Ocular Diseases,Eye Hospital,Wenzhou Medical University,Wenzhou 325027,Zhejiang Province,China

出　　处：《International Journal of Ophthalmology(English edition)》2025年第3期510-517,共8页国际眼科杂志(英文版)

基　　金：Supported by Zhejiang Province Science and Technology Benefiting Project(No.2014H01007);Wenzhou Municipal Basic Research Project(No.Y20210208).

摘　　要：AIM:To evaluate the prevalence and the causes of blindness,severe visual impairment(SVI),and visual impairment(VI)and to investigate the frequency of cataract surgery in people aged≥50y in Yueqing,Zhejiang Province,China.METHODS:A population-based,cross-sectional study was performed using the Rapid Assessment of Avoidable Blindness technique.Eight-seven clusters,each consisting of 50 people aged≥50y,were selected by probabilityproportionate-to-size sampling.Three outreach teams conducted door-to-door visits.Visual acuity(VA)was measured using a tumbling E chart.Lens status and causes of VI were assessed by ophthalmologists for individuals with a VA of<6/12 in either eye.A standardized questionnaire was used to collect information about cataract surgeries.RESULTS:Of 4350 eligible individuals,4120 were examined with a 94.7%response rate.Age-and genderadjusted prevalence of blindness,SVI,and VI were 0.5%(95%CI,0.3%–0.7%),0.7%(95%CI,0.4%–1.0%),and 4.8%(95%CI,4.2%–5.5%),respectively.Age was associated with an increased prevalence of VI,and the most common cause of VI was untreated cataracts,with the main barriers to cataract surgery being a lack of knowledge or awareness about cataracts.Of the 415 eyes operated on for cataracts,68(16.4%)eyes had a poor outcomes(VA<6/60)and 303(73.0%)had a good outcomes(VA>6/18).CONCLUSION:Prevalence rates of blindness,SVI,and VI in Yueqing are lower than other reported Chinese population-based studies.Cataracts remain the most common cause of blindness and VI.

关 键 词：visual impairment cataract surgery rapid assessment of avoidable blindness prevalence of blindness 

分 类 号：R778.11[医药卫生—眼科]