Abstract: Objective To investigate the prevalence and influencing factors of cataract among the elderly in Zigong City, and to provide experience for the prevention and treatment of cataract. Methods From June 2020 to June 2022, the elderly in 25 townships/towns/streets in four districts and two counties of Zigong City were selected by convenience sampling method for this study. The eye examination and questionnaire survey were carried out, the results were analyzed by descriptive analysis method, and the influencing factors of cataract among the elderly in Zigong City were analyzed by univariate and multivariate analysis methods. Results A total of 1 135 elderly people≥60 years old in Zigong City participated in this study, including 1 050 valid data, with an effective rate of 92.51%. A total of 250 cases of cataract were detected in 1 050 elderly people, with a detection rate of 23.81%, of which 68.00% were nuclear cataract, 12.00% were cortical cataract, 2.40% were posterior subcapsular cataract, and 17.60% were mixed cataract. Multivariate logistic regression analysis showed that overweight/obesity （OR=1.462）, outdoor work （OR=6.073）, hypertension （OR=2.204）, diabetes （OR=3.694）, dyslipidemia （OR=1.573）, osteoporosis （OR=5.412）, smoking （OR=2.038）, drinking （OR=1.448）, intensive eye use （OR=20.767）, and malnutrition （OR=1.426） were the risk factors for cataract among the elderly in Zigong City. Conclusion sThe prevalence of cataract among the elderly in Zigong City is not optimistic. Overweight/obesity, outdoor work, hypertension, diabetes, dyslipidemia, osteoporosis, smoking, drinking, intensive eye use, and malnutrition are all influencing factors for the occurrence of cataract. It is suggested to formulate targeted prevention strategies based on the above factors to improve the eye health of the elderly.

Key words: The elderly, Eye disease, Cataract, Prevalence, Influencing factor