Abstract
BackgroundTo determine the prevalence and associated factors for myopia and high myopia among older population in a rural community in Eastern China.MethodsA community-based, cross-sectional survey was conducted in the Weitang town located in Suzhou, an urban metropolis in East China. A total of 5613 Chinese residents aged 60 years and older were invited to complete a questionnaire and participated in a detailed eye examination,including measurements of visual acuity and refractive error using autorefraction and subjective refraction. Myopia and high myopia was defined as SE < −0.5 diopters (D) and < −5.0 D, respectively.ResultsAmong the 5613 participating individuals, 4795 (85.4%) complete refraction data of phakic right eye was included for analysis. The age-adjusted prevalence was 21.1% (95% confidence interval [CI], 19.9-22.2) for myopia and 2.5% (95% CI, 2.1-2.9) for high myopia. The prevalence of myopia tended to increase significantly with age(p < 0.001),and women had a higher rate of myopia than men (p < 0.001). According to multivariate logistic regression analysis, adults who were older (odds ration[OR]:1.05; 95% CI:1.04-1.07), spent more time for sleeping at night (OR:1.12;95% CI: 1.06-1.18),or had cataract (OR:1.60;95% CI:1.36-1.88) and family history of myopia (OR:1.47;95% CI:1.23-1.77), are more susceptible to myopia (p < 0.001). People who had older age, family history, cataract and specially longer night-time sleep duration, would have a higher risk of myopia.ConclusionMyopia and high myopia among rural old adult population in Eastern China presents common. The current literature unanticipated suggests that there was a positive significant association between prevalence of myopia and night-time sleep duration among adult. Our data provide some evidence of this relationship and highlight the need for larger studies to further investigate this relationship longitudinally and explore mechanism therein.
Highlights
To determine the prevalence and associated factors for myopia and high myopia among older population in a rural community in Eastern China
4611 subjects volunteered to participate in the hospital, and 1002 subjects did not attend the clinic were examined at home
The prevalence of myopia in this elderly population was increased with age, which was similar reported in south Indian [30] and the black population [31], and in Chinese population such as southern Harbin, the Handan Eye Study and the Liwan Eye Study
Summary
To determine the prevalence and associated factors for myopia and high myopia among older population in a rural community in Eastern China. The majority of related epidemiological studies ever reported focus on children and teenagers population, presenting myopia prevalence as high as 50% in Taiwan [5], 67.3% in Chinese mainland [6], 70% in Singapore [7], and even 96.5% in Korea [8]. As International Population Reports [9] reported that. We conducted the present study in order to estimate the prevalence and associated risk factors of myopia among older adult population aged 60 and above in Eastern China
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