Refractive Error in a Chinese Population with Type 2 Diabetes: A Report from the Fushun Diabetic Retinopathy Cohort Study
In a northeastern Chinese population with type 2 diabetes, the Fushun Diabetic Retinopathy Cohort Study aimed to characterize the prevalence and risk factors for refractive errors. Among 1929 participants (41.0% males), myopia, high myopia, hyperopia, astigmatism, and anisometropia were prevalent at 43.1%, 8.5%, 21.5%, 61.0%, and 17.2%, respectively. Advancing age correlated with increased hyperopia, astigmatism, and anisometropia, while female gender, higher intraocular pressure, and lenticular opacity were associated with myopia. A prolonged diabetes duration (>15 years) emerged as a significant factor for astigmatism and anisometropia. The findings underscore the high prevalence of refractive errors in individuals with type 2 diabetes, emphasizing the influence of age and identifying gender-specific and diabetes-related risk factors.