Diabetic patients should determine whether cataract surgery is recommended based on their condition. The details are as follows: cataract surgery can be performed on diabetic patients with stable blood glucose control and stable condition; cataract surgery is not recommended for diabetic patients with poor blood glucose control and poor basal status. Diabetic patients with poor blood glucose control are not recommended to have cataract surgery because unstable blood glucose is not conducive to wound healing, which will aggravate the risk of infection, and diabetic patients have more postoperative complications, such as postoperative uveitis reaction will be more probable than normal, and the degree will be heavier, and the probability of reoccurrence of cataracts after surgery is higher than that of normal people. Diabetic patients can have cataract surgery if their blood sugar control is stable. Once diabetic patients need cataract surgery, it is recommended to control their blood glucose at 5.5-10.0mmol/L in the surgical ward and ensure stable blood glucose control before surgery to reduce the incidence of postoperative complications. Therefore, whether diabetic patients can undergo cataract surgery or not, they should consult regular hospitals in a timely manner, and be determined after full assessment of their condition by specialized doctors, and their blood glucose should be monitored regularly before and after the surgery.