Well, generally speaking, it will be harmful to have swimming, after the surgery. And you can have swimming in the first several weeks after the surgery. Or it can just damage your eyes. You should know that after the eye surgery, your eyes can be sensitive and very fragile. When you have swimming in the water, there will have many viruses getting into your eyes. And it can lead to eye infection. and in that situation, it can just make your situation become worse, and also slow down the recovery process. Anyway, it can be dangerous. so just avoid swimming. also you should take care of your eyes, when you have shower. or it can also lead to eye infection too. by the way, you should not watch too much tv or computer. Just follow the things the doctor has told you.