Zhang K, Zhang S, Yu J, et al. - Researchers here examined changes in the tear film lipid layer thickness (LLT) in cataract patients with diabetes mellitus (DM) after cataract surgery. They assessed 38 age‐related cataract (ARC) and 31 diabetic cataract (DC) patients in this analysis. The groups did not differ significantly in preoperative lipid layer thickness (LLT) and partial blink rates. However, DC group had significantly lower preoperative tear break‐up time (TBUT) and Schirmer’s test results compared with ARC group. Relative to ARC group, DC group had higher preoperative Ocular Surface Disease Index (OSDI) score with no significant difference. In DC group, cases with longer duration of DM (over 10 years) had significantly thinner LLT than that noted in those with shorter duration. Observations here indicated correlation of the tear film LLT with duration of DM; it becomes significantly thinner 1 month post cataract surgery, resulting in the aggravation of dry eye symptoms.