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  • Title: Prevalence and risk factors of myopic maculopathy in rural southern China: the Yangxi Eye Study.
    Author: Li Z, Liu R, Jin G, Ha J, Ding X, Xiao W, Xu X, An L, Zhao J, He M.
    Journal: Br J Ophthalmol; 2019 Dec; 103(12):1797-1802. PubMed ID: 30770357.
    Abstract:
    AIMS: To evaluate the prevalence of myopic maculopathy among participants aged 50 years and older in rural southern China. METHODS: Population-based, cross-sectional study. Subjects were recruited using cluster sampling from Yangxi County, Guangdong Province, China from August to November in 2014. Non-cycloplegic autorefraction and fundus photography were performed on all of the participants. Myopic maculopathy was graded based on fundus photographs using the International Classification of Myopic Maculopathy. RESULTS: Among 5825 individuals who participated (90.7% response rate), a total of 4469 participants with gradable fundus photographs for myopic maculopathy and automated refractive data were included in this study. The mean age of these participants was 65.50±9.70 years. The crude prevalence of myopic maculopathy was 1.4% (62/4469; 95% confidence interval [CI] 1.0% to 1.8 %) and age-standardised prevalence was 1.2% (95% CI 1.1% to 1.2%). Diffuse chorioretinal atrophy, patchy chorioretinal atrophy, macular atrophy, lacquer cracks and staphyloma were observed in 43 (1.0%), 3 (0.1%), 1 (0.1%), 15 (0.3%) and 8 eyes (0.2%), respectively. Myopic maculopathy was more common in eyes of older participants (OR 1.07; 95% CI 1.03 to 1.11) and more myopic spherical equivalence (OR 1.69; 95% CI 1.57 to 1.84). CONCLUSION: The prevalence of myopic maculopathy was low among the rural southern Chinese population. Diffuse chorioretinal atrophy was the most common retinal finding among Chinese myopes.
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