Well, generally speaking, it will be safe to have cataract surgery. And according to some researches, the success rate of cataract surgery will be high to 95pencent. So in common, there will no need to worry about it too much. First, you should know that when there are some problems occur on cataract, you should take surgery to heal it, and that would be the cataract surgery. So cataract surgery is an operation to remove the clouded lens. Of course, to make the cataract surgery become effective, you need to be careful about your eyes in the first several weeks after eye surgery. For example, when you wash your face and eyes, you should be careful about your eyes. Generally speaking, you should not let the water into your eyes, or it can be harm to your eyes and in some cases, it can lead to eye infection. Anyway, just be careful about it.