In general, it is recommended to go out and be active for at least 1 week after cataract surgery to avoid increasing the risk of infection. Currently, cataract surgery is a very mature procedure and most of them are minimally invasive with small incisions, making the surgery very safe. However, there is still a risk of postoperative infection. In the relatively short period of time after surgery, the incision heals poorly, and try to avoid wind and sand irritation or infection from external factors, so as not to enter the bacteria inside the eye, and increase the risk of infection. As for how long you can go out and be active after surgery, the textbooks don’t specify, but to be safe, it is recommended to go out and be active for at least a week after surgery. In fact, it is not always possible to avoid eye infections completely even 1 week after the operation, therefore, you should go to the hospital in time when there is redness in the eyes, eye pain, or loss of vision, so as not to delay the condition.