Prevalence and risk factors of refractive error in Qinghai, China: a cross-sectional study in Han and Tibetan adults in Xining and surrounding areas

Abstract Background Our study aimed to explore the prevalence and risk factors of refractive error (RE) in Han Tibetan population aged 50–79 years Xining surrounding areas Qinghai Province on Qinghai-Tibet Plateau. Methods As part China National Health Survey, our cross-sectional compared age-adjusted RE older adults areas. A multivariate logistic regression model was used identify for myopia hyperopia. Results Among 769 participants 476 participants, (spherical equivalent (SE) < − 0.5D), hyperopia (SE > + high -6.0D) astigmatism (cylindrical = 0.5D) is 28.56, 22.82, 2.80, 69.38%. have higher (32.93% vs 21.64%, p 0.001), (3.93% 1.02%, 0.001) (72.14% 64.94%, 0.021) participants. Being protective factor being (OR 0.58, 95%CI 0.42–0.79, 0.001). Older age ( 0.032), longer time length rural area 0.048), undergraduate/graduate education level 0.031), lighter active 0.007) lower BMI 0.015) are myopia. (all pterygium status same eye 0.013) also increase risk. Conclusions found an overall 28.56% than 50 years. has population. More medical social resources should be allocated improve vision life quality adults.