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Prevalence of Blindness and Low Vision in a Rural Population in Northern China: Preliminary Results from a Population-Based Survey

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机构: [1]Beijing Best-Vision Eye Clinic, Beijing, China [2]Department of Ophthalmology, Beijing Chaoyang Hospital, Capital University of Medical Sciences, Beijing, China [3]Hebei Handan Eye Hospital, Handan City, Hebei Province, China [4]Department of Ophthalmology, Hebei Cixian Hospital, Ci County, Hebei Province, China [5]Department of Ophthalmology, Beijing Tongren Hospital, Capital University of Medical Sciences, Beijing, China [6]School of Public Health, Peking University Health Science Center, Beijing, China
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关键词: Blindness Eye Low vision Rural China Visual impairment

摘要:
Purpose: To investigate the prevalence of visual impairment in a rural northern Chinese population. Methods: A cross-sectional, population-based survey was conducted in 2010 in Ci County, Hebei Province in northern China. Residents aged 7 years and older in Lucunying Town, located within Ci County, underwent presenting visual acuity (VA) testing at home; those with presenting VA <20/60 were invited to participate in further examination at the local hospital. Population-weighted prevalences of blindness and low vision were determined according to World Health Organization definitions. Results: Among the 24,539 residents aged older than 7 years, 20,298 (82.7%) participated in the study, and 20,072 (98.9%) of these had valid VA data. The population-weighted prevalence rates of presenting bilateral blindness and bilateral low vision were 0.3% and 2.4% for the entire population, 0% and 0.5% for residents 7-39 years of age, and 0.8% and 6.4% for residents 40 years and older, respectively. Based on best-corrected VA, the corresponding prevalence rates of bilateral blindness and bilateral low vision were 0.2% and 1.4% for the entire population, 0% and 0.1% for residents 7-39 years, and 0.6% and 4.0% for residents 40 years and older, respectively. Prevalence rates of blindness and low vision were generally higher among women than men. Blindness and low vision increased with age among residents 40 years and older. Conclusion: Our findings highlight the need for eye healthcare services for visual impairment in rural China.

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出版当年[2011]版:
大类 | 4 区 医学
小类 | 3 区 眼科学
最新[2023]版:
大类 | 4 区 医学
小类 | 3 区 眼科学
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出版当年[2010]版:
Q2 OPHTHALMOLOGY
最新[2023]版:
Q3 OPHTHALMOLOGY

影响因子: 最新[2023版] 最新五年平均 出版当年[2010版] 出版当年五年平均 出版前一年[2009版] 出版后一年[2011版]

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第一作者机构: [1]Beijing Best-Vision Eye Clinic, Beijing, China
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通讯机构: [5]Department of Ophthalmology, Beijing Tongren Hospital, Capital University of Medical Sciences, Beijing, China [*1]Capital Univ Med Sci, Beijing Tongren Hosp, Beijing Tongren Eye Ctr, Dept Ophthalmol, 2 Chongnei St, Beijing 100730, Peoples R China
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