Prevalence of Visual Impairment among Adults in China: The Beijing Eye Study

Xu, Liang; Cui, Tongtong; Yang, Hua; Hu, Ailian; Ma, Ke; Zheng, Yuanyuan; Sun, Bindong; Li, Jianjun; Fan, Guizhi; Jonas, Jost B.

doi:10.1016/j.ajo.2005.10.018

Cited by 56 publications

(42 citation statements)

References 6 publications

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“…The study has been described in detail previously. [22][23][24][25] In total, 4439 individuals participated in the eye examination, corresponding to a response rate of 83.4%. The study was divided into the rural part (1918 (43.8%) subjects) and the urban part (2460 (56.2%) subjects).…”

Section: Methodsmentioning

confidence: 99%

Associated factors for age related maculopathy in the adult population in China: the Beijing eye study

Li²,

Zheng³

et al. 2006

British Journal of Ophthalmology

117

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Section: Methodsmentioning

confidence: 99%

Associated factors for age related maculopathy in the adult population in China: the Beijing eye study

Li²,

Zheng³

et al. 2006

British Journal of Ophthalmology

117

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“…Today, cataracts are the leading cause of visual disability in China [14], [15]. When taken together, the enormous public health burden attributed to cataracts along with the country's geographic conditions make studying the relationship between the prevalence of cataracts and ambient UVR in China an urgent and suitable endeavor.…”

Section: Introductionmentioning

confidence: 99%

The Relationship between the Disability Prevalence of Cataracts and Ambient Erythemal Ultraviolet Radiation in China

Wang

Gao

et al. 2012

PLoS ONE

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In Western countries, ultraviolet (UV)-induced skin cancer has been studied extensively regarding the high incidence of skin cancers in the white population; however, for people of color, cataracts are the main public health issue in relation to increased ambient ultraviolet radiation (UVR). To our knowledge, few studies have been conducted examining the relationship between cataracts and ambient UVR in China. In this study, we aimed to explore the relationship between and the factors influencing the disability prevalence of cataracts and annual ambient erythemal UVR exposure in 31 regions of China. The data used to determine the disability prevalence of cataracts was obtained from the Second China National Sample Survey on Disability. The regional annual erythemal UVR was calculated using Geographic Information System (GIS) methods based on data from the National Aeronautics and Space Administration (NASA) database. The relationship between the disability prevalence of cataracts and the annual ambient erythemal UVR was examined by using logistic regression. Both the age-standardized disability prevalence of cataracts (OR = 3.97, 95%CI 1.30–12.13, per 100KJ/m2 increase in annual ambient erythemal UVR) and the disability prevalence of cataracts among a population ≥65 years old (OR = 3.97, 95%CI 1.30–12.13, per 100KJ/m2 increase in annual ambient erythemal UVR) were higher in association with higher ambient erythemal UVR. Regions with higher urbanization and educational levels had lower disability prevalence of cataracts. We found positive associations of the age-standardized disability prevalence of cataracts and the disability prevalence of cataracts among a population ≥65 years old with ambient erythemal UVR in 31 regions of China.

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“…It reflects the list of disorders which were found to be the major causes for prevalence and incidence of visual impairment and blindness in population-based studies in China [2], [4]–[6], [16]. The latter studies focusing on visual acuity as well as our study addressing the incidence of VFL showed, that age-related macular degeneration is of lesser importance for presence and development of visual loss in adult Chinese in the Greater Beijing region and in Asians in general as compared with Westerners [16], [27], [41], [42].…”

Section: Discussionmentioning

confidence: 99%

Five Year Incidence of Visual Field Loss in Adult Chinese. The Beijing Eye Study.

Wang

Sun

et al. 2012

PLoS ONE

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PurposeTo describe the cumulative 5 year incidence of visual field loss in adult Chinese in Greater Beijing.MethodsThe Beijing Eye Study 2006 included 3251 subjects (mean age 60.4±10.1 years) who had participated in the Beijing Eye Study 2001 and returned for re-examination. All participants underwent a comprehensive eye examination, including visual field test by frequency doubling threshold perimetry. An abnormal visual field was defined as reduced sensitivity in at least one test location. Incident visual field loss was defined as a change in visual field from normal at baseline to abnormal at follow-up.ResultsAn incident visual field loss was detected in 273 eyes (4.3±0.5%) /235 subjects (7.3±0.5%). It was significantly associated with higher age (P = 0.001), higher intraocular pressure (P<0.001), and higher fasting blood glucose concentration (P = 0.019). Considering only eyes (n = 140) with a detected cause for visual field loss, the most frequent causes were cataract (68 (48.6%) eyes) followed by glaucoma (23 (16.4%) eyes), diabetic retinopathy (13 (9.3%) eyes), age-related macular degeneration (10 (7.1%) eyes), and myopic degenerative retinopathy (9 (6.4%) eyes). For 133 (48.7%) eyes with a visual field loss, the cause for the VFL remained unclear.ConclusionsThe 5-year incidence of visual field loss was 4.3±0.5% per eye or 7.3±0.5% per subject. It increased significantly with age, intraocular pressure, and fasting blood glucose level. Major causes for the incidence of visual field loss were cataract, glaucoma and diabetic retinopathy.

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Prevalence of Visual Impairment among Adults in China: The Beijing Eye Study

Cited by 56 publications

References 6 publications

Associated factors for age related maculopathy in the adult population in China: the Beijing eye study

Associated factors for age related maculopathy in the adult population in China: the Beijing eye study

The Relationship between the Disability Prevalence of Cataracts and Ambient Erythemal Ultraviolet Radiation in China

Five Year Incidence of Visual Field Loss in Adult Chinese. The Beijing Eye Study.

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