LOL. I want to tell you it is possible to get a tattoo on your eyeball, but I do not know why you want to take this danger. As far as I know, some eye doctors will refuse to give a healthy person the tattoo, unless the peoples have suffered some kinds of the eye trauma, since the doctor know there are too many risks involved in the procedure, such as the blindness, infection, scarring and so on. If you are a unlucky guy who suffered the eye trauma, of course, there are still some ways to make it; for instance, you should ask your doctor, then talk with the professionals with the technicians so that your eyes will be safe. At last, you can use a patch and use antibiotic drops to take care of your eyes and the tattoo. Hope everything is Ok with you.