Precautions after cataract surgery include paying attention to eye hygiene, avoiding strenuous exercise, adjusting daily diet, and improving sleeping position. 1. Pay attention to eye hygiene: After surgery, you should pay attention to eye hygiene, especially when you wash your face, hair, or take a bath, to avoid sewage into the eyes, and don’t rub your eyes with dirty hands to prevent infection. 2. Avoid strenuous exercise: After surgery, you should rest in bed, avoid strenuous exercise, do not press your eyes with your hands, do not bow your head for a long time, do not cough violently, and do not lift heavy objects. 3. Adjustment of daily diet: After surgery, you need to adjust your daily diet, eat a light diet, eat more fresh vegetables and fruits, try not to eat stimulating foods, and do not drink alcohol and smoke. 4. Improve sleeping posture: After the surgery, you need to adjust your sleeping posture, choose to sleep in a flat position or lie on your side towards the non-operated eye, and wear a protective eye mask to protect it. In addition, after the operation, you need to follow the doctor’s guidance, safe and reasonable application of medication, do not take medication without authorization.