Background: This meta-analysis aimed to investigate the association between type 2 diabetes (T2D) and the risk\nof cataract.\nMethods: Databases of Pubmed, Embase, and SpringerLink were retrieved for observational studies published\nbefore November 2013. The odds ratio (OR) and 95% confidence interval (CI) were used for estimating the\nassociation. All statistical analyses were performed by Stata 10.0 software.\nResults: A total of 8 studies involving 20837 subjects were included in the meta-analysis. The risk of any cataract\n(AC) in T2D patients was higher than that in non-diabetic subjects (OR = 1.97, 95% CI: 1.45-2.67, P < 0.001). The risks\nof cortical cataract posterior (CC) (OR = 1.68, 95% CI: 1.47-1.91, P < 0.001) and posterior subcapsular (PSC) (OR = 1.55,\n95% CI: 1.27-1.90, P < 0.001) were significantly elevated in T2D patients, while no significant association was found\nin nuclear sclerosis (NS) (OR = 1.36, 95% CI: 0.97-1.90, P = 0.070).\nConclusion: T2D patients had a higher risk of cataracts, excepting NS. Special attention should be paid on the\nophthalmic extermination, especially for cataract in T2D patients
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