Main Organiser

Julius Centre University of Malaya


Department of Social and Preventive Medicine, Faculty of Medicine, University of Malay

Supported by

University of Malaya



Wan-Ju Lin 1 , Yi-Ching Yang 2,3 , Jin-Shang Wu 2,3 , Ying-Hsiang Huang 2 , Feng-Hwa Lu 2,3 , Chih-Jen Chang 2,3


1 Department of Family Medicine, Tainan Municipal Hospital, Taiwan, Republic of China
2 Department of Family Medicine, National Cheng Kung University Hospital, Taiwan, Republic of China
3 Department of Family Medicine, College of Medicine, National Cheng Kung University, Taiwan, Republic of China


Objectives: To investigate the relationship between exercise and cataracts in a Taiwanese population.

Methods: A total of 13,157 subjects were enrolled February, 2001 to August, 2009 and divided into cataract and non-cataract groups. The definition of cataracts was clouding of either lens. Subjects with a history of cataract extraction were also categorized into the cataract group. Exercise habit was divided into regular (=3 days/week), occasional (1-2 days/week), and non-exercise according to exercise status defined as at least 20 minutes of vigorous physical activity per day during the previous six months. Binary logistic regression was applied to investigate the relationship between cataracts and habitual exercise, with adjustments for gender, age groups, education level, smoking, alcohol drinking and the presence of metabolic syndrome.

Results: A total of 2,572 (19.5%) subjects had cataracts. Both regular exercise (OR: 0.80, p=0.03) and occasional exercise (OR: 0.68, p<0.001) were negatively associated with cataract. Female gender (OR: 1.20, p<0.001), age =65 years (OR: 381.74, p<0.001), age of 40-64 years (OR: 19.04, p<0.001), metabolic syndrome (OR: 1.36, p<0.001), and education level =6 years (OR: 1.86, p<0.001) were positively associated with cataracts.

Conclusion: Not only regular exercise but also occasional exercise seems to have a protective effect for cataracts.