Generally speaking, the situation various person to person, but the answer is certainly yes, you can cook after cataract surgery. However, you'd better do it after 3 to 4 weeks at least in consideration of your recovery. As we know that after the cataract surgery, your eyes are sensitive and very fragile, so it can be harmful in the kitchen while the lampblack might stem from eyes infected or even other eye diseases as well. Moreover, there are still a few things you should pay more attention to during this time. For example, you should avoid eye injuries by wearing a protective shield at night and with naps. Besides, you should remember not sleep on the side of the operated eye for the first night. Following these tips above, i am sure you will get restored to health shortly after.