Matrix metalloproteinase-9 activity in human lens epithelial cells of cortical, posterior subcapsular, and nuclear cataracts

A significant difference was observed in the level of MMP-9 activity between different types of cataract. The activity of MMP-9 was highest in eyes with cortical cataract. The level of MMP-9 activity increased with age in the LECs of patients with age-related cataract.