The study investigated the effects of metformin on the level of inflammatory cytokines in the eye fluid of cataract patients with type 2 diabetes. They found that metformin reduced the levels of certain cytokines in the eye fluid, which may help prevent and treat cataracts in these patients. The researchers collected samples from patients undergoing eye surgery and measured the levels of different cytokines. They compared the levels in patients taking metformin versus those who were not. The results showed that metformin reduced the levels of certain cytokines, indicating its potential benefits for cataract patients with diabetes. This study provides valuable information about the role of metformin in reducing inflammation in the eye and its effects on age-related cataracts.