Different complications can occur after cataract surgery with individual differences: 1. Dry eye: the most common complication. The eye is a balanced environment, and when cataract surgery is done the balanced environment will be disrupted and dry eye will occur. Patients who have dry eyes should order medication in time according to the doctor’s prescription in the follow-up recovery. 80% of patients can be completely relieved, but there are also 20% of patients with poorer effect and may have to keep continuous eye drops; 2. Astigmatism: astigmatism after cataract surgery. In the past, cataract surgery was a large incision surgery and the chance of astigmatism exists with a large incision. Nowadays, cataract surgery has been changed to microincision surgery, and the incidence of postoperative complications is lower; 3. Posterior cataract: when it is found that the vision improves after cataract surgery and then the vision decreases, it is necessary to consult a doctor in time, and the doctor will determine whether it is possible to have posterior cataract, and if it is posterior cataract, laser treatment can be given.