The Association Between Physical Activity and Cataracts Among 17,777 People Aged 15-69 Years Residing in Spain.

Purpose: The aim of the present study was to assess the association between levels of physical activity (PA) and the presence of cataracts in people aged 15–69 years residing in Spain. Methods: Cross-sectional data from the Spanish National Health Survey 2017 were analysed (n = 17,777 ≥ 15 years; 52% females; self-weighting sample). The International Physical Activity Questionnaire (IPAQ) short form was used to measure PA. Total PA MET-minutes/week were calculated, and participants were divided into two categories: 1) Less than 600 MET-minutes/week. 2) At least 600 MET-minutes/week, equivalent to meeting current PA recommendations. Cataracts were self-reported in response to the question “H…