AIM:To explore the main risk factors related to the incidence of cataract in China and to provide evidence for the prevention.

METHODS:The results of 17 studies on the main risk factors of cataract were analyzed by Meta-analysis method.

RESULTS:The pooled odds ratio values and 95%CI of age, hypertension, diabetes, smoking, presence of merging other eye diseases and long-term exposure to sunlight were 2.48(1.82～3.36),1.88(1.28～2.75),3.55(2.41～5.24),2.58(1.45～4.56),2.39(1.50～3.82),1.82(1.08～3.06).

CONCLUSION:The main risk factors of cataract were age, hypertension, diabetes, smoking, presence of merging other eye diseases and long-term exposure to sunlight.