Well, first, you should know that a cataract is a clouding of the normally clear lens of the eye, which can eventually block the central line of sight and impairs vision. So Cataract surgery is an operation to remove the clouded lens. And it will not take a long time to have the surgery, and just about 1 hour. At the first recovery stage, it can be a little painful, but the pain will disappear. So you should not worry about it. As we know that after the cataract surgery, your eyes can be very fragile, so it can be hurt when you have the exercises. Also, if you use your eyes too much, that will lead to eye strain. And in some cases, it can be dangerous. So you should follow the things the doctor has told you. Besides, For example, you should avoid eye injuries by wearing a protective shield at night and with naps until you are advised by your doctor.