After testing the serum levels of HbA1c, FPG, and fasting insulin (FINS) in patients with diabetic cataracts and other cataracts, calculating HOMA-IR, and testing the levels of IGF-1 and IL-6, Tang et al. (15) found that the other cataract patients had lower levels of HbA1c, FPG, HOMA-IR, IGF-1, and IL-6 than the patients with diabetic cataracts. This evidence concerns the gene INS and cataract.